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Infortrend External RA ID Co ntroller & Subsy stem Generic Operation Manual Revision 1.61 Firmware Version: 3.31[...]

ii Asia Pacific (Internati onal he adquar te r ) Infortren d Technology, I nc. 8F, N o. 102 Chung- Shan Rd., Se c. 3 Chung-H o City , Taipe i Hsie n, T aiwan Tel : (886) -2-2226- 0126 Fax : ( 886)-2- 2226-0020 sales@infortrend.com.tw suppor t@infor trend.co m.tw www.i n fo rt re nd . c om .t w Am ericas Infortrend C orporation 3150 Coro nado Dr ive[...]

iii DEC and Alph a are registered trademark s of Compaq Computer Corp. (formerly of Digital Equipment Corporation). Microsoft, Windows, Windows NT a nd M S-DOS are register ed trade marks of Micr osoft Corpora tion in the U.S . and othe r countries. Novell and NetWare are registered tradema rks of Novell, Inc. in the U.S . a nd other countr ie s. S[...]

iv Table of Contents Chapter 1 RA ID Functions: A n Introduction 1.1 Logical Drive ................................................................................................... 1 1.2 Logical Volume ............................................................................................... 1 W hat is a logical volum e? ....................[...]

v 3.1.1 Configuring RS-232C Connec tion via Front Panel .................................. 2 3.1.2 Starting RS-232C T erm inal Emulation ..................................................... 3 3.2 Out-of-Band via Ethernet .............................................................................. 4 W hat Is the “Disk Reserved Space?”........[...]

vi 5.9 Viewing and Editing Logical Drives and Drive M embers ......................... 16 Deleting a Logical Drive ................................................................................... 16 Deleting a Partition of a Logic al Drive .............................................................. 17 Assigning a Nam e to a Logical Drive ....[...]

vii Chapter 6 Terminal Screen Messages 6.1 The Initial Screen ............................................................................................ 1 6.2 Main M enu ....................................................................................................... 2 6.3 Quick Installation .................................................[...]

viii Deleting Spare Drive (Global / Loc al Spare Drive) .......................................... 24 7.12 Viewing and Editing SCSI Channels .......................................................... 25 Redefining Channel Mode ............................................................................... 25 Viewing and Editing SCSI IDs - Host Chan[...]

ix Prim ary and Secondary Contr oller IDs: .............................................................. 6 Redundant Controller Cache Coherency Channel (RCC Channel): .................. 7 View Channel W W N .......................................................................................... 7 View Device Port Name List (W W PN) .............[...]

x Idle Drive Failure Detection ............................................................................. 23 Periodic Auto-Detect Failure Drive Swap Check Tim e .................................... 23 9.3 Monitoring and Safety M echanisms ........................................................... 25 Dy namic Switch W rite-Policy ...............[...]

xi Mapping a Logical Drive/Logical Volum e to the Host LUNs .......................10- 24 Front Panel View of Controller Failure ........................................................ 10-25 W hen and how is the failed contr oller replaced? ........................................10- 25 10.3.2 Via Term inal Em ulation .............................[...]

xii Copy and Replace Drives with Drives of Larger Capacity ................................. 7 Copy and Replace Procedure ............................................................................ 7 12.4 Making Use of the Added Capacity : Expand Logical Drive ......................... 9 12.5 Expand Logical Volume .................................[...]

xiii Functional T able of Contents This functional table of contents helps you to quickly loca te the descriptions of firmwar e f unctions. Chapter 1 Functional Description Page number Identify ing Driv es 1-8 Flash Selec ted SCSI Drive 1-8 Flash A ll SCSI Drives 1-8 1.4.2 Flash All b u t Select ed Drives 1-8 Autom atic re build and m anual rebuild[...]

xiv Write Policy 5-10/7-10 5.6/7.6 Partitioning a Log ical Driv e/Log ical Volum e 5-12/7-11 5.7/7.7 Mapping a Logi cal Dr ive/L ogic al Volum e to Host LUN 5-13/7-13 Assig ning Spare Driv e, Rebuild Setting s 5-14/7-15 Adding a Loc al Spar e Driv e 5-14/7-15 Adding Globa l Spare Drive 5-15/7-16 5.8/7.8 (Logic al Drive) Rebuild Settings 5-15 Viewin[...]

xv Passw ord Valida tion Tim eout 5-37/7-39 Controller Unique Identifier 5-37/7-39 SCSI Drive Utilities 5-40/7-42 Low -lev el for ma t 5-40/7-43 5.15/7.15 Read/W rite tes t 5-41/7-44 Chapter 8 Fibre Operation Page number Host and Drive Param eters 8-6 View and Edi t Fibr e Channel 8-6 Channel Mode 8-6 Primary and Secondary Controller IDs 8-6 Commun[...]

xvi Cy linder/He ad/Sec tor Mapping 9-16 Drive-side Param eters 9-18 SCSI Motor Spin-up 9-18 SCSI Reset at Power-up 9-19 Disk Access Delay Time 9-20 SCSI I/O T imeout 9-20 Maxim um Tag Count (T ag C omm and Queuing) 9-21 Detection of Drive Hot Sw ap Followed by Auto Rebuild 9-22 SAF-T E and S.E.S. Enc losure Monitor ing 9-22 Perio dic Drive Check T[...]

xvii 12.3 Mode 2 E xpans ion : Copy & Replace Drive with drives of larger capacity 12-7 12.4 Expand Logical Drive (M aki ng use o f the add ed capacity) 12-9 12.5 Expand L ogic al Volum e 12-11 12.6 Exam ple: RAID Ex pansion in W indow s 2000 12-12 A ppendix C Controller Maintenance Page number: Upgr a ding Fir mw are C-1 New Feat ures S upport[...]

xv iii List of Table s Chapter 1 Table 1 - 1 RAID Levels.................................................................................. 1-2 Chapter 2 Table 2 - 1 RAID Levels.................................................................................. 2-4 Table 2 - 1 Controller Param eter Settings ............................................[...]

xix Chapter 2 Figure 2 - 1 Optim ization Setting.....................................................................2-3 Figure 2 - 2 Array Configuration Process ........................................................2-5 Figure 2 - 3 SCSI ID/LUNs .............................................................................. 2-7 Figure 2 - 4 Connec[...]

xx A bout This Manual This manual provid es all of the necessa ry information that a syste m administra tor needs to c onfigure and maintain one of Infortr end’s external RAID contro llers or subsystems. Fo r hardware-related information , please refer to the Hardware Manual tha t came with your RAID controller. Also available is the U ser’s Ma[...]

xxi Appendix A outlines the menu structure of the L CD front pane l operation. Appendix B lists the important firmware features supported with the firmw are version, arran ged in accordance wi th the latest firmware version as of press date. Appendix C teaches the user ho w to upgrade firmware and boot record. Appendix D lists all of the controller[...]

xxii Versio n 1.4: • added firmware features available with firmware revis ions 3.14, 3.15, and 3.21 • revised details about redundant co ntrollers, host LUN mapping, e tc. • modified string d efinitions in Cha pter 1 4 "In-band SCS I Drives a nd Utilities" section • Corrected descriptions of "Controlle r Unique Identifier&qu[...]

Functional Description 1-1 Logical Drive 12 3 RAID Functions: An Introduction Redun dant Arr ays of Inde penden t Disks , or RAID, offers the followin g advanta ges: Availability, Capa city, and Perf ormance. Choosing the right RAID level and drive f ailure management can increase Capacity and Perf ormance, subsequently increasing Availa bility. In[...]

Infort rend 1-2 then distributes data segments to its member drives a ccording to the specific RAID level it is composed of. The member logical drives can be co mposed of the same RAID level or each of a dif ferent RAID level. A logical volume can be divided into a maximum of 64 par titions. During ope ration, the host sees a non-partitione d logic[...]

Functional Description 1-3 + + + 2 GB H ard Drive 3 GB H ard Drive 1 GB H ard Drive 2 GB H ard Drive L og i cal Dr i v e 2 + 3 + 1 + 2 = 8 GB Logical Dri ve = 2 GB Ha r d Dr i v e 3 GB Ha r d Dr i v e 1 GB Ha r d Dr i v e 2 GB Ha r d Dr i v e 2 GB L o g ic a l D ri v e = = = 3 GB 1 GB 2 GB L o g ic a l D ri v e L o g ic a l D ri v e L o g ic a l D [...]

Infort rend 1-4 Block 1 Block 2 Block 3 Block 4 Block 5 Block 6 Block 7 Block 8 Block 1 Block 3 Block 5 Block 7 Block 2 Block 4 Block 6 Block 8 S t r iping Lo g i c a l D riv e Ph ys i c a l D is k s Block 1 Block 2 Block 3 Block 4 Block 5 Block 6 Block 7 Block 8 Block 1 Block 2 Block 3 Block 4 Mirror 1 Mirror 2 Mirror 3 Mirror 4 M irrorin g Logica[...]

Functional Description 1-5 Block 1 Block 2 Block 3 Block 4 Block 5 Block 6 Block 7 Block 8 . . Logical Drive Ph y sical Disk s Block 1 Block 3 Block 5 Block 7 Block 2 Block 4 Block 6 Block 8 Stri ping Pa ri ty (1 ,2) Pa ri ty (3 ,4) Pa ri ty (5 ,6) Pa ri ty (7 ,8) Dedicat ed Parity . . . . . . Block 1 Block 2 Block 3 Block 4 Block 5 Block 6 Block 7[...]

Functional Description 1 - 6 Logical Drive 12 3 X LS Local Spare Drive When one member drive fails , the Local Spare D rive joi ns the logical drive and automatica lly star ts to rebuild. Logical Dri ve 0 Global Spar e Drive 12 3 GS Logical Dri ve 1 12 Logical Dri ve 2 12 3 4 Global Spar e Drive GS 1.4 S pare Driv es Global and Local Spare Driv es [...]

I n f o r t re n d 1 - 7 A Local Spare always has higher pri ority than a Global Spare. Figure 1 - 12 Mi xi ng Local and Global Spares Logi cal D ri ve 0 Local Spare Dr ive 12 3 LS Logi cal D ri ve 1 12 Logi cal D ri ve 2 12 3 4 Glo b a l S p ar e D r ive GS (9G B) (9G B) (9G B) (9G B) (4G B) (4G B) (4 G B) (4G B) (4 GB) (4G B) (4 G B) In the examp[...]

Functional Description 1 - 8 LE D LE D LE D LE D LE D R/ W 1.5 Identify ing Drives Assuming there is a failed drive in the RAID 5 logical drive, make it a point to replace the failed drive with a new, healthy drive to keep the logical drive working. If, when tr ying to remove a f ailed drive yo u mistakenly remov e the wr ong dr ive, y ou w ill no [...]

Infort rend 1 - 9 1.6 Rebuild A utomatic Rebuild and Manual Rebuild 1. A utomatic Rebuild Figure 1 - 13 A utomatic Rebui l d Rebuild w i th Spare: When a member drive in a logical d rive fails, the controller will first examine whether there is a Local Sp are Drive assigned to this logical drive. If yes, rebuild is a utomatically started. If there [...]

Functional Description 1 - 10 If the failed drive is not swapped but a local spare is a dded to the logical drive, rebuild will begin with the spare. If the S.M.A. R.T. function is enable d on drives a nd the rea ction scheme is selected for securing data on a fa iling drive, spare will also be used for restoring data. Please refer to Chapter 9, Ad[...]

Infort rend 1 - 11 3. Concurrent Rebuild in RA ID (0+1) RAID (0+1) allows multiple drive failures a nd rebuild to be concurrently conduc ted on more tha n one of its member s. Drives newly swapped must be scanned and set as Local Spa res. These drives will be used for rebuild at the same time (you d o not need to repeat the rebuild process for each[...]

Functional Description 1 - 12 1.7 Logical Volume (Multi-Level RA ID) What is a logical v olume? Figure 1 - 15 Logical Vol ume Logi cal Volume Logical Dri v e Logical Dri v e Logical Dri v e ….. ….. ….. ……. ……. ……. ……. ……. ……. Phy sic al D r ive s Phy sic al D r ive s Phy sic al D r ive s A logical volume is a combinati[...]

Infort rend 1 - 13 Figure 1 - 16 Logical Dri ve Composed of 24 Dri ves RAID 5 Logical Dri ve 24 drives, 1 redund ancy drive Configur ati on A - One logi cal dr iv e wit h all 24 dr ives As illustrated ab ove, Configuration A is a RAID 5 logical drive consisting of 24 physica l drives. Configuration B is a logical volume made of four RA ID 5 logical[...]

Functional Description 1 - 14 minimized to reduce the possibility of having two drives to fa il at the same time. Configuration A is a large logical drive a nd takes a long time to rebuild. All members will be involved during the rebuild process. In Configuration B, the time span is shorter because only 6 members will participate when rebuilding an[...]

Infort rend 1 - 15 Limitations: The logical volume can not have any logica l drive stated a s "fata l failed.” If there is any failed d rive in any of its member logical drives, controller will start to rebuild tha t logical drive. Should any of the member logical drives fa il fatally, the logica l volume f ails fatally and d ata will not be[...]

Functional Description 1 - 16 Di ff e rent w r i t e policies w i t h in a logical v o lume? As m embers of a logical v olum e, all logical drives w ill be forced to adopt a consistent w r ite p olicy. Whenev er the w rite policy of a logical volum e is changed, for exam p le, the corresponding setting in its mem b ers will also be chang ed. RA ID [...]

Infort rend 1 - 17 logical drive. If a controller fails, the host I/Os originally a ssigned to the failed controller will be taken over by the existing controller. When the controller fails back (failed controller being replaced by a new one), logical drives will be returned to the replacement controller in its original configuration. With logical [...]

RA ID Planning 2 - 1 RAID Planning This chapter summarizes the pro cedures and provides some useful tools for first- time configura tion: 2.1 C onsid erations: things you should know before se tting up 2.2 C onf iguring the Array: the most common configur a tion procedure 2.3 Oper a tion Theory: the theory behind d a ta bus and syste m drive mappin[...]

Infort rend 2 - 2 larger drives can be mo re efficient than that o f many but smaller drives. 3. How many driv es would you like to appear to the host computer? It must be decided wha t capacity will be included in a logica l configuration of drives, be it a logica l drive or a logical volume. A logical configura tion of drives will appea r to the [...]

RA ID Planning 2 - 3 Optimization Mode Figure 2 - 1 Opti m i z at i on Set t ing You should select a n optimization sche me be st suited to your applications before configuring a RA ID array. Once the optimization mode is selected, it will be a pplied to all arrays managed by the RAID controlle r . Two options are a vailable : Sequentia l I/Os and [...]

Infort rend 2 - 4 Table 2 - 1 RA I D Levels RAID Level Description Capacity Data A vailability NRAID Non-RAID N N/A RAID 0 Disk Stri p i ng N ==NRAID RAID 1 (0+1) Mirroring Plus Striping (if N> 1) N/2 >>NRAID ==RAID 5 RAID 3 Striping with Parity on dedicated disk N-1 >>NRAID ==RAID 5 RAID 5 Striping with interspersed parity N-1 >&[...]

RA ID Planning 2 - 5 2.2 Configuring the A rray: 2.2.1 Starting a RA ID Sy stem Here is a flowchart illustra ting basic steps to be taken when configuring a RA ID system. Har dware insta llation should be completed before any configuration ta kes pla ce. Figure 2 - 2 A rray Configuration Process Drives must be configured and the controller properly[...]

Infort rend 2 - 6 NOTE: • A "Logical Drive" is a set of drives group ed tog ether to operate und er a given RAID level and it appears as a sin gle contigu ous volu me. The controlle r is capab le of gr ouping dri ves into as many as 128 logical drives, c o nfig ured in th e sa m e or different RAI D levels. • A total of 3 2 "Logi[...]

RA ID Planning 2 - 7 2.3 Operation Theory 2.3.1 I/O Channel, SCSI ID, and LUN Depending o n the interface used by a RAID system, a SCSI drive channel (S CSI bus) can connect up to 1 5 drives (ex cluding the RAID contro ller its elf). A Fibre chan nel 125 driv es in a loop. Each device occupies one unique ID. Figure 2 - 3 SCS I ID/LU Ns The figure o[...]

Infort rend 2 - 8 Figure 2 - 5 Physical locations of dri ve members A drive can be assigned as th e Local Spare Drive that serves on e specific logical drive, or as a Global Spare Drive that participates in the rebuild of any logical d rive. Spares a utomatically joins a logical drive when a drive fa ils. Spares ar e not applicable to logical d riv[...]

RA ID Planning 2 - 9 2.3.3 M aking A rra y s A v ailable t o H o s t s Figure 2 - 7 Mapping Partitions t o Host I D/LUNs Host I D mappin g is a proc ess that associates a logi cal configu ration of drives with a host channel ID/LUN. To a vail logica l partitions on host channel(s) , map ea ch partition to a host ID or one of the LUNs under host IDs[...]

R A ID P l a nning 2 - 10 2.4 T unable Parameters Fine-tune th e controller and th e array parameters for your ho st applications. Although the fa ctory def aults gua rantee the optimized controller operation, you may refer to the table below to fa cilitate tuning of your array. Some of the per formance and fa ult-toleranc e settings may also be ch[...]

I n f o r t re n d 2 - 11 ➀ Date and time N/A ➀ Time zone + 8 hrs Optimization Mode: ➀ Write-back Cache Enabled Dis abled ➀ Array stri pe siz e Related to con troller gener al setting 4KB to 256KB ➀ Optimization for Random/Sequential Sequent ial Either (se quent ial for L D large r than 512MB and can not be ch anged) ➁ Arr ay wr ite pol[...]

RA ID Planning 2 - 12 Array Configuration: ➀ Disk reserved spa ce 256MB 64KB – backw ard comp atible ➁ Array assi gnment Prima ry controlle r Secondar y contr oller ➀ Array part iti oni n g 1U p t o 6 4 Others: ➂ Passwo rd N/A User-Defined; Pa ssword Validation T imeou t: 1 to Alway s Check Con figu rable ➂ LCD Display Cont roll er Na m[...]

Out-of-Band via Ser ial Por t and Etherne t 3-1 Accessing the Array through Serial Port and Ethernet 3.1 RS-232C Serial Port Infortrend’s controller s and subsystems can be configured via a PC runni ng a VT-100 t ermin al emul ation program, or a VT-100 compatible terminal. RAID enclosures usually provid e one or more DB-9 RS-232C ports. Simply u[...]

Infort rend 3-2 3.1.1 Configuring RS-232C Connection via Front Panel Take the following steps to change the baud rate using the front panel keypad: Press ENT for two seconds to enter the Main Menu . Press ▼ or ▲ to select "View and Edit Configur ation .. ", the n press ENT . Select " Communication Pa rameter s ..", then pres[...]

Connecting Terminal 3-3 3.1.2 Starting RS-232C Terminal Emulat ion The keys used w hen operating v ia the terminal are as f ollows: ← ← ← ← → → → → ↑ ↑ ↑ ↑ ↓ ↓ ↓ ↓ To select options [Enter] To go to a subm enu or to execute a selected optio n [Esc] To escape and go back to th e previous menu [Ctrl] [L] The controller[...]

Infort rend 3-4 3.2 Out-of-Band v ia Ethernet The RAIDWatch m anager softw are provides g raphical interf ace to the subsy stem. Before you can access the R AID sy stem usin g the sof tw are manager, your must: 1. Create a reserv ed space on y our array (s) 2. Set up the related TCP/IP co nfig urations to enable the Ethern et port and the http serv[...]

Connecting Terminal 3-5 Other Concerns Availability Co ncern: For saf ety reas on, it is better to create a reserv ed space on m ore than on e logical drive. Whatever data is put into the reserved space, firm w are w ill automatically duplicate an d distribu te it to the res erved section on every data drive. Even if one hard drive or one logical d[...]

Infort rend 3-6 3.2.2 Configuring the Controller To pr epa re the contr oll er fo r using the RAIDW atch manager, d o t he following : 1. Use a Terminal Emulator to Begin Configuration Connec t the subsyste m’s serial po rt t o a P C running a VT - 100 term inal emu lation program or a VT-100 com patible term inal. Make su re th e inclu ded Null [...]

Connecting Terminal 3-7 When f ormat ted, a m eta-f iles ys tem is created on the 256MB reserved space. A drive configured w ith a reserved space will be stated as a “f orma tted driv e.” 3. Assign an IP Address to Ethernet Port: Ass ign an IP address to the controller Eth ernet port and s pecify the Net Mask and g atew ay valu es. Power of f y[...]

Infort rend 3-8 3. Login as “root” an d there is n o passw ord for the f irst logi n. Press Enter to skip pas sw ord entry. 4. Use the “ put” com man d to transfer th e follow ing f iles: put gr m.ht m put g rm .jar put grem.h tm put grem .jar 5. Proceed to ins tall Java Ru n-tim e environm ent from the CD (If the manag ement station is a P[...]

Connecting Terminal 3-9 3.2.3 NPC Onboard NPC is short for Notific ation Processing C enter, a sub-module for use with system event no tification. To activate the NPC module, do the following: 1. Create an NPC configuration file ( in a simple text file format) using a text editor program. 2. Save it in the name of “ a gent.ini” 3. FTP it to the[...]

Infort rend 3-10 The SNMP_TRAP section [SNMP_TRAP] – section header [ENABL ED] – 1=enable d, 0=disabled (appl ies to th is s ection on ly ) [SEVERITY] - level of s everity of the m essages to be received: 1. notification, 2. w arning , 3. alert. “1” covers events of all levels. “ 3” sends only the most serio us events.) [COMMUNITY] – [...]

LCD Screen M essages 4-1 LCD Screen Messages 4.1 The Initial Screen Status/Data Transfer Indicator: Ready There is at least one logical drive or logical volume mapped to a host ID/LUN. No Host LUN No logical drive created or the logical drive has not yet been mapped to any host ID/LUN. ❚❚❚❚❚❚❚❚❚❚❚❚ Indicates data transfer. E[...]

Infort rend 4-2 4.3 Logical Driv e Status Logical Dr ive: The Logical Drive number. RAID level: The RAID level used in this logical drive Drive number s: The number of physical drives included in this configuration. Logical Dr ive status: XxxxMB The capacity of this logical drive. SB=x Standby dr ives available to this logica l drive. Except the sp[...]

Infort rend 4-3 4.4 Logical Volume Status Logical Volume: The Logical Volume number. DRV=x: The number of logical drive(s) conta ined in this logical volume. Logical Volume I D: The unique ID number of the logical volume (controlle r r andom gene r a ted). Logical Volume Status: xxxMB The capacity of this logical volume. DRV=X: The number of member[...]

LCD Screen M essages 4-4 4.5 SCSI Driv e Status Drive Status: LG=x IN Initializ ing LG=x LN On-line (alread y a member of a logical configura tion) LG=x RB Rebuilding LG=x SB Local Spare Drive Global SB Global Spare Drive NEW DRV New drive BAD DRV Failed d r ive ABSENT Drive does n ot exist MISSING Drive mi ssing (drive was once there) SB-MISS Spar[...]

Infort rend 4-5 4.6 SCSI Channel Status Channel Mode: Host Host Channel mode Drive Drive Channel mode Default SCSI Bus Sync Clo ck: 80.0M The default setting of this channel is 80.0 MHz in S ynchronous mode Async The def a ult setting of this SCS I cha nnel is in Asynchronous mode Primary Contr oller SCSI I D Mapping: * M ultiple SCSI ID ’s appli[...]

LCD Screen M essages 4-6 4.7 Controller Voltage and Temperature Press ENT for two seconds to enter the Main Menu . Press ▼ or ▲ to select "View and Edi t Peripheral Dev,” then press ENT . Press ▼ or ▲ to select "Ctlr Peripheral Device Config..”, press EN T and th en choose “View C tlr Periph Device Status..”, then press EN[...]

Infort rend 4-7 4.8 Cache Dirty Percentage The LCD panel indicates the cach e dirty percentage. The amber- colored “busy” light blinking on f ront panel also indica tes that the cache is being accessed. 4.9 View and Edit Event Logs Press ENT for two seconds to enter the Main Menu . Press ▼ or ▲ to select "View and Edit Event Log s,” [...]

Front Panel Ope ration 5-1 LCD Keypad Operation 5.1 Pow er on RA ID Enclosure Before you start to configure a RA ID system, make sure that hardware insta llation is completed before any configura tion takes place. Power on your R AID enclosure. 5.2 Caching Parameters Optimization Modes Mass storage a pplications can be categorize d into two accordi[...]

Infort rend 5-2 Database and Transaction-based Applications: T his kind of applications usua lly include SQL server, Oracle server, Informix, or othe r data ba se service s. These applica tions kee p the size of e ach transa ction down to the minimum, so tha t I/Os ca n be rapidly processed. Due to its transa ction-based nature, these applications [...]

Front Panel Ope ration 5-3 Optimization for Random or Sequential I/O Select from main menu “View and E dit Config Parms, ” “Ca ching Para meters,” and press ENT. Choose “Optimiza tion for Random I/O” or “Optimiz ation for Sequential I/O,” th en press ENT fo r two seconds to confirm. Press ESC to leave and the setting will take effe [...]

Infort rend 5-4 IMPORTA NT! • Every t ime you c hange t he Cach ing Paramet ers, y ou m ust reset th e controller fo r t he cha nges to t ake effect. • In the Redundant Controller configuration, write-back will only be applic able when there is a synchroniz ed cach e channel bet ween partner controllers.[...]

Front Panel Ope ration 5-5 5.3 View Connected Driv es: A RAID system consists of ma ny physical drive s that can be modified a nd configur ed as the me mbers of one or seve ral logic al drives. Press the front panel ENT button for two seconds to ente r the Mai n Menu. Use ▼ or ▲ to navigate through the menus. Choose " View and E dit SC SI [...]

Infort rend 5-6 5.4 Creating a Logical Drive To create a logical drive, press ENT for two seconds to ente r the Mai n Menu. Use ▼ or ▲ to navigate through the menus. Choose "V iew and Edit L ogical Drives," and then press EN T . Press ▼ or ▲ to select a logical drive entry, then press ENT for two seconds to proceed. "LG"[...]

Front Panel Ope ration 5-7 Maximum Driv e Capacity : Choose “Maximum Drive Capacity,” then press ENT . The maximum drive capacity refers to the maximum capacity that will be used in each member drive . Use ▼ and ▲ to change the maximum size that will be used on each d r ive. Spare Driv e A ssignments: Local Spare Drive ca n also be assigned[...]

Infort rend 5-8 Users may proceed with array configuration, e.g., including this arra y in a logical volume. Array initializ ation can take a long time especially for those comprised of large capacity. S etting to “Online” means the array is immediately accessible and tha t the controller will complete the initialization when IO d e ma nds beco[...]

Front Panel Ope ration 5-9 The Off -Line Mode: The controller will start to initialize the array parity if using the “Off- line” m o d e . N o t e t h a t i f N R A I D o r R A I D 0 is selected, initialization time is short and completes a lmost immediate ly. The logical drive’s information displays when the initialization process is complet[...]

Infort rend 5-10 5.5 Creating a Logical Volume Press ENT for two seconds to enter the Main Menu . Press ▼ or ▲ to select "View and Edit Lo gical Vol ume," then press ENT . Press ▼ or ▲ t o s e l e c t a n u n d e f i n e d entry for logical volume, then press ENT for two seconds to proceed. "LV" is short for Logical Volu[...]

Front Panel Ope ration 5-11 seconds to display the confirm box. Press ENT f or two seconds to start initializing the logical volume. The logical volume has been successfully created. Press ESC to clear the message. Another message will prompt, press ESC to clear it. Logical volume information will be displayed below. Logical Volume A ssignment If y[...]

Infort rend 5-12 5.6 Partitioning a Logical Drive/Logical Volume Partitioning, as well as the creation of logical volume, are not the requirements for creatin g a RAID system. The configuratio n processes for partitioning a logical drive are the same as those for partitioning a logical volume. Press ENT for two seconds to enter the Main Menu . Pres[...]

Front Panel Ope ration 5-13 5.7 Mapping a Logical Volume/Logical Driv e to Host LUN The process of mapping a logica l drive is identica l to tha t of mapping a logical volume. The process of mapping a logical volume is used as an example. Press ENT for two seconds to enter the Main Menu . Press ▼ or ▲ to select "View an d Edit Host Luns ,&[...]

Infort rend 5-14 you can map the whole capacity to a host LUN. Mapping information will be displayed on the subsequent screen. Press ENT for two second s to confir m the LUN mapping. With any of the Host ID/LUN successf ully associated with a logical capacity, the “No Host L UN” messa ge in the main menu will cha nge to “Ready.” If you want[...]

Infort rend 5 - 15 A dding a Global Spare Drive Press ENT for two seconds to enter the Main Menu . Press ▼ or ▲ to select "View and Edit SCSI Drives," then press ENT . SCSI dr ive information will be displayed on the LCD. P ress ▼ or ▲ to select a S CSI dr ive that ha s not been assigned to any logical drive yet, then press ENT . [...]

Front Panel Ope ration 5 - 16 NOTE: • The rebui ld priori ty determ ines how m uch of controlle r res ources is conducted when rebuilding a logical dr ive. The default setting of the rebuild priority is “LOW.” Rebuild will h ave smaller impac t on host I/O access, but rebuild w ill take a longer time to complete. Changing the rebuild priority[...]

Front Panel Ope ration 5 - 17 Deleting a Partition of a Logical Drive Press ENT for two seconds to enter the Main Menu . Press ▼ or ▲ to select "View and Edit Logical Drives..,” th en press ENT . Press ▼ or ▲ to select a logical drive, then press ENT . Press ▼ or ▲ to choose “Partition Logical Drive," then press ENT . The [...]

Front Panel Ope ration 5 - 18 A ssigning a Name to a Logical Drive Press ENT for two seconds to enter the Main Menu . Press ▼ or ▲ to select "View and Edit Logical Drives..," then press ENT . Press ▼ or ▲ to select a logical drive, then press ENT . Press ▼ or ▲ to select “Logica l Drive Name," then press ENT . Press ▼[...]

Infort rend 5 - 19 When rebuilding is already started or the logical drive is being rebuilt by a Local Spare Dri ve or Global Spare Drive, choose “ Rebuild Progre ss” to see the rebuild progress. IMPORTA NT! • The Rebuild function will appear only if a log ical d rive (with RAID level 1, 3 or 5) has a fai led memb er . • Use the "I den[...]

Front Panel Ope ration 5 - 20 Media Scan Media Scan is used to examine dri ves and is able to det ect the presence of ba d blocks. If a ny data blocks ha ve not been properly committed, data from those blocks are automa tically recalcula ted, retrieved and stored onto undamaged sectors. If ba d blocks are encountered on yet another dr ive during th[...]

Infort rend 5 - 21 Write Policy From the Ma in Menu, pre ss ▼ or ▲ to select "View and Edit Logical Drives". The first logical drive displays. If you have more than one logical drive, use the ▼ or ▲ keys to select the logica l drive you want to change the write policy of; and then press ENT. Use arrow keys to select "Write Po[...]

Front Panel Ope ration 5 - 22 5.10 View ing and Editing Host LUNs View ing and Deleting LUN Mappings Press ENT for two seconds to enter the Main Menu . Press ▼ or ▲ to select "View an d Edit Host Luns ", then press ENT . Press ▼ or ▲ to select a host ID, then press ENT to proceed. Press ▼ or ▲ to browse through the LUN num ber[...]

Infort rend 5 - 23 WA RNING! • Pass-th rough SCSI Command s are only int ended to p erform maintenanc e functions for a drive or dev ice on th e drive side. Do not p erform any destruct ive comm ands to a disk d rive (i.e. , any co mmand s that write data to a drive media). If a dis k drive is a s pare drive or a member of a logical drive, suc h [...]

Front Panel Ope ration 5 - 24 An empty drive entry is adde d for this channel/SC SI ID for enclosure management. The drive sta tus is “ABSENT.” To clear the em pty drive entry, press ENT and use arrow keys to select “Clear Drive St atus,” th en press ENT to proceed. Press ENT for two seconds to conf irm the drive entry’s de letion. Inform[...]

Infort rend 5 - 25 Deleting Spare Driv e (Global / Local Spare Driv e) Press ENT for two seconds to enter the Main Menu . Press ▼ or ▲ to select "View and Edit SCSI Drives," then press ENT . SCSI dr ive information will be displayed on the LCD. Press ▼ or ▲ to select the spare drive you wish to delete, then press ENT. Press ▼ or[...]

Front Panel Ope ration 5 - 26 IMPORTA NT! • Every tim e you change channel mode, you must r eset the contr oller f or the changes to take effect. Setting a SCSI Channel’s ID - Host Channel View ing IDs Press ENT for two seconds to enter the Main Menu . Press ▼ or ▲ to select "View and Edit SCSI Ch annels," then press ENT . Channel[...]

Infort rend 5 - 27 Deleting a Channel ID Press ENT on an existing host channel ID you want to delete. Press ▼ or ▲ to choose “Del ete Channe l SCSI ID, " then press ENT . Press ENT for two seconds to conf irm. I M PORT A N T! • Every t ime you m ake cha nges to c hannel I Ds, you must reset th e controller for the configuration to take[...]

Front Panel Ope ration 5 - 28 Channel information will be displayed. Press ENT on the drive c hannel you wish the ID changed. Press ▼ or ▲ t o s e l e c t “ S e t S C S I Channel Pri. Ctlr ID..”, then press ENT . Press ▼ or ▲ to select a new ID, then press ENT for two seconds to conf irm. Setting a SCSI Channel’s Secondary ID - Driv e[...]

Infort rend 5 - 29 Its current status will be displayed on the LCD. Press ENT to continue. Press ENT again for two second s to change the terminator mode to the alternate setting. IMPORTA NT! • You can use termina tor jump ers on the controller board to control SCSI bus terminat ion of the Sent inelRAID series co ntrollers. When using jumpers to [...]

Front Panel Ope ration 5 - 30 Setting Transfer Width The co ntroll er supports 8-bit SCSI and 16-bi t SCSI. Enable “Wi de Transfer” to u se the 16-bi t SCSI funct ion. D isablin g “Wide Trans fer” will limit the channel transfer speed to 8- bit SCSI. Press ENT for two seconds to enter the Main Menu . Press ▼ or ▲ to select "View an[...]

Infort rend 5 - 31 Press ▼ or ▲ to select “View an d Edit SCSI Target,” then press EN T . Press ▼ or ▲ to select a SCSI target, then press ENT . Slot Number To set the Slot number of the SCSI target, choose “Slot A ssignment," then press ENT . The current slot number will be displayed. Press ▼ or ▲ to change the slot number, [...]

Front Panel Ope ration 5 - 32 current clock setting will be displayed on the LCD. Press ENT for two seconds to change the setting. Parity Check Press ▼ or ▲ to select a SCSI target, then press ENT . Choose “Parity Chec k," then press ENT . The current clock setting will be displayed on the LCD. Press ENT for two seconds to change the set[...]

Infort rend 5 - 33 IMPORTA NT! • Disabling the Maximum Tag C ount will disable the internal cache of this SCSI drive.. Restore to De fa ult Setting Press ▼ or ▲ to select a SCSI target, then press ENT . Choose “Restore to Default Setting," then press ENT . Press ENT again for two seconds to restore the SCSI target’s default settings.[...]

Front Panel Ope ration 5 - 34 5.13 Sy stem Functions Choose “System Functions” in the main me nu, then press EN T. Press ▼ or ▲ to select a submenu, then press ENT . Mute Beeper When the cont roller’s beeper has been activated , choose “M ute beeper, " then press ENT to turn th e beeper off temporarily for the current event. The be[...]

Infort rend 5 - 35 If a password ha s previously been set, the controller will ask for the old pa ssword first. If password has not yet been set, the controller will directly ask for the new password. The password c an not be replaced unless a correct old pa ssword is provided. Press ▼ or ▲ to select a character, t hen press ENT to move to the [...]

Front Panel Ope ration 5 - 36 The controller will now flush the cache memory. Pre ss ENT for two seconds to confirm and reset the controller or powe r off the contr oller. Controller Maintenance For Controller M aintenance f unctions, please refer to A ppendix C. Saving NVRA M to Disks You can choose to ba ckup your controller -depende nt configur [...]

Infort rend 5 - 37 5.14 Controller Parameters Controller Name Select “View a nd Edit Conf ig Parms” fr om the main menu. Choose “ View and Edit Configuration pa ramete rs,” “Controller Parameters," then press ENT . The current name will be displayed. Press ENT for two seconds a nd ente r the new c ontroller na me by using ▼ or ▲ [...]

Front Panel Ope ration 5 - 38 “Ctlr Uniq ue ID-,” th en press ENT . Enter any hex number between “0” and “FFFFF” and press ENT to proceed. Enter a unique ID for any RAID controller no matter it is configured in a single or dual-c ontroller configuration. The unique ID is recognized by the controller as the following: 1. A controller-spe[...]

Infort rend 5 - 39 Use the ▲ key to enter the plus sign and the ▼ key to enter numeric representatives. Date and Time Use your arrow keys to scroll down a nd select “Dat e and Time” by pressin g ENT. Use your arrow keys to select and enter th e numeric representatives in the following orde r: month, da y, hour, minute, a nd the year. GMT +0[...]

Front Panel Ope ration 5 - 40 5.15 SCSI Driv e Utilities From the “View and Edit S CSI Drives” menu, select the drive that the utility is to be performe d on; then press ENT . Select “SCSI Drive U tilities; then press ENT . Choose either “SCS I Drive Low- level Format” or “Read/Write Test”. These options are not ava ilable for drives [...]

Infort rend 5 - 41 SCSI Driv e Read/Write Test From the “View and Edit S CSI Drives” menu, select a new or use d drive tha t the utility is to be performed on; then press ENT . Select “SCSI Drive Utilities;" then press ENT . Choose “Read/Wri te Test” and pres s ENT . Press ▼ or ▲ to select a nd choose to enable/disable the f ollo[...]

Terminal Screen Messag es 6-1 Terminal Screen Messages 6.1 The Initial Screen Cursor Bar: Move the cursor bar to a desired item, then press [ENTER] to select Controll e r Name: Identifies type of controller or a preset name Transfer Rate Indicator Indicates the current data transfer rate Gauge Range: Use + or - keys to change the gauge range in ord[...]

Infort rend 6-2 6.2 M ain Menu Use the arrow keys to mo ve the cursor bar through th e menu items, then press [ENTER] to choose a menu, or [ESC] to return to the previous menu/screen. In a subsystem or controller head where battery status can be detected, battery status will be displayed a t the top center. Status will be stated as Good, Bad, or se[...]

Terminal Screen Messag es 6-3 The controller will start initializa tion and automa tically map the logical drive to LUN 0 of the first host channe l.[...]

Infort rend 6-4 6.4 Logical Drive Status LG Logical Drive number P0 : Logical Drive 0 mana ged by the Prima ry Controller S0: Logical Drive 0 mana ged by the S econdary Controller LV The Logical volume to which this logical drive belongs ID Controller-generated unique ID RAID RAID leve l SIZE (M B) Capacity of the Logical Drive RAID RAID L e vel Si[...]

Terminal Screen Messag es 6-5 Column C Logical Drive Status – Write Policy setting B Write-back T Write-through #LN Total drive members in the logica l d r ive #SB Standby dr ives available for the logical d rive. This includes all the spare dr ives (local spar e, global spare) available for the specific logica l drive #FL Number of Failed member[...]

Infort rend 6-6 6.6 SCSI Drive Status Slot Slot number of the d r ive; “S” indicates this is the drive used for passing through SES signals Chl The drive c hannel where the drive is c onne c ted X<Y> indicate s two c hannels ar e configure d in a dua l-loop ID The channel ID assigned to this drive Size (MB) Drive capacity Speed XxMB Maxim[...]

Terminal Screen Messag es 6-7 6.7 S CSI Channel’ s Status Chl SCSI channel number Mode Channel mode RCCom Redundant controller c ommunic ation channel Host Hos t Chann el mode Drive Driv e Channel mode PID IDs managed b y the Primary Controller * Multiple IDs were applied (H ost Channel mode only) (ID number) H ost channel: Specific IDs managed b[...]

Infort rend 6-8 Term Terminator S tatu s: On Terminator is enabled. Off Terminator is disabled. Diff The channel is a Differential c hannel. The terminator c an only be installed/ removed physically. CurSynClk Current S CSI b us synchronous cloc k: ??.? M The default setti ng of the SCSI cha nne l is ??.? M Hz in Synchronous mode. Async. The defa u[...]

Terminal Screen Messag es 6-9 6.8 Controller V oltage and T emperature Controller voltage and temperature monitoring Choose from main menu “View and E dit Peripher al Devices, ” and pre ss [ENTER]. From the submenu, choose “Controller Periphera l Device Configu ration ,” “View Peri pheral Device St atus”, th en press [EN TER]. The curre[...]

Infort rend 6-10 6.9 View ing Event Logs on the Screen There may be a chance wh en errors occur and yo u may want to trace down the record to see what has happened to your system . The controller’s even t log management will record all the events from power on, it can record up to 1,000 events. Powering off or resetting the controller will cause [...]

Terminal O peration 8-1 T erminal Operation 7.1 P ow er on RA ID Enclosure Hardwa re installation should be completed befor e powering on your RAID enclosure. Drives must be configured and the controller properly initialized before host computer can access the storage capacity. The configura tion and administration utility resides in controller&apo[...]

Infort rend 7-2 Limitati ons: There a r e limitations on the use of optimizat ion mod es. 1. You can select the stripe size of each arra y (logical drive) during the initial configuration. However, changing stripe size is only recommended for experien ced engineers who have tested the effect s tuning str ipe sizes for d if ferent a pplic a tions. 2[...]

Terminal O peration 7-3 Optimization Mode and Stripe Size Each controller optimization mode has preset values for the str ipe size of arra ys created in diffe rent RAID levels. If you want a different value for your array, you ma y change the controller optimization mode, reset the controller, and then go back to create the array. Once the array is[...]

Infort rend 7-4 display the cur rent se tting with the Write -Ba ck ca ching. Choose Ye s in the dialog box that follows to confirm the setting. The Write-through mode is safe r if your controller is not configured in a redundant pair and there is no battery backup. Write-back caching can d ramatically improve write performance by caching the unfin[...]

Terminal O peration 7-5 Drives will be listed in the table of “View a nd Edit SCSI Drives.” Use arrow keys to scroll the table. You may first examine whether there is any drive installed but not listed here. If there is a drive installed but not listed, the dr ive may be defective or not installed correctly, please contact your RAID supplier. I[...]

Infort rend 7-6 Choosing a RA ID Level: A pull-down list of supported RA ID levels will appear. In this chapter, RA ID 5 will be used to demonstrat e the configura tion process. C hoose a RAID level for this logical drive. Choosing Member Drives: Choose your member dr ive(s) fr om the list of ava ilable physical drives. The drives can be ta gged fo[...]

Terminal O peration 7-7 A ssign Spare Drives: You can add a spare drive from the list o f the unused drives. The spare chosen here is a Local spa re and will automatica lly replace any failed drive in the event of drive failure. The controller will then rebuild data onto the replacement drive. A logical drive composed in a none-re dundancy RA ID le[...]

Infort rend 7-8 Initialization Mode This sub-menu allows you to set if the logical drive is immediately available. If the online ( default) mode is used, data can be written onto it and you may continue with array configuration, e.g., including the array into a logical volume, before the array’s initialization is completed . Stripe Size This opti[...]

Terminal O peration 7-9 The completion of array creation w ill be indicated by the above m essage prompt . A controller event will then prompt to indicate the logical drive initialization ha s begun. Tap [ESC] to c ancel the “ Notifica tion” prompt and a progress indica tor displays on the sc reen as a percentage bar. The array initializ ation [...]

Infort rend 7-10 7.5 C reating a Logical V olume A logical volume consists of one or severa l logical drives. C hoose “View and Edit logical volumes” in the main menu. The current logical volume configuration a nd status will be displayed on the screen. Choose a logical volume number (0- 7) that ha s not yet been defined, then press [ENTER] to [...]

Terminal O peration 7-11 Logical volumes can be assigned to different controllers (primary or secondary). Defa ult is primary. Note that if a logical volume is manually assigned to a specif ic controller, all its members’ assignment will also be shif ted to that controller. As all the member logical drives ar e selected, press [ESC] to continue. [...]

Infort rend 7-12 Choose the logica l volume you wish to par tition, then press [ENTER] . Choose “Partition logic al volume ”, the n press [ENTER] . Select f rom the list of unde f ined par titions a nd Press [ENTER] . A list of partitions displays. If the logical volume ha s not yet been partitioned, all volume ca pa city will list as “par ti[...]

Terminal O peration 7-13 7.7 Mapping a Logical V olume to Host LUN Select “View and Edit Host luns” in the main menu, then press [ENTER] . A list of host channe l/ID combinations appe ars on the scr een. T he diagra m above shows two host channels and e ach is designa ted with bo th a prim ary and a seco ndary ID . Multiple IDs on host cha nne [...]

Infort rend 7-14 1. A list of LUN entries and their respective mappings will be displayed. To map a host LUN to a logical volume’s partition, select an availa ble LUN entry (one not mapped yet) by moving the cursor bar to the LUN, then press [ENTER] . 2. A list of availa ble logical volumes displays. M ove the cursor bar to the desired logical un[...]

Terminal O peration 7-15 7.8 Assigning Spare Driv e, Rebuild Settings A dding Local Spare Drive A spare drive is a stand by drive a utomatica lly initiated by controller firmware to replace a failed drive. A spare drive must h ave an equal or larger capacity tha n the array members. A local spa re should have a capacity e qual or larger than the me[...]

Infort rend 7-16 A dding a Global Spare Drive A global spare repla ces the f ailed drive in any logical d r ive of a RAID system. Move cursor bar to the SCSI drive th at is not a member drive o r a spare (usually indicated as a "New Drive"), and then press [ENTER] . Choose “Add Global Spar e Drive.” When prompted to “Add Globa l Spa[...]

Terminal O peration 7-17 Deleting a Logical Drive Choose the logical d rive you wish to dele te, then press [ENTER] . Choose “Dele te logical d rive.” Choose Yes when prompted to confirm. Deleting a Partition of a Logical Drive Choose the logical drive which has a par tition you wish to delete, then press [ENTER] . Choose “Pa rtition logical [...]

Infort rend 7-18 example, wh en on e or more logical drives have been deleted, th e array indexing is changed after system reboot. The second logical drive might become the first on the list. Choose the logica l drive you wish to assign a name, the n press [ENTER] . Choose “logical d rive name,” then pre ss [ENTER] ag ain. The current name will[...]

Terminal O peration 7-19 When rebuild ha s alread y started, choose “Rebuild pr ogress” to see the rebuilding progress. IMPORTA NT! • The Rebuild function is only available wh en a log ical drive (with RAID level 1, 3 or 5) has a f ailed me mber . NRAID and R AID 0 confi guration s provid e no data red undancy . Regenerating Logical Drive Par[...]

Infort rend 7-20 those blocks are automatically recalculated , retrieved and stored onto undamaged sectors. If bad blocks a re encounter ed on yet another dr ive during the r ebuild process, the block LBA ( Logical Block Address) of those bad blocks will be shown. If rebuild is carried out under this situa tion, rebuild will continue with he unaffe[...]

Infort rend 7 - 21 7.10 Viewing and Editing Host LUNs View ing or Deleting LUN Mappings Choose the host channel and host ID combination you wish to view or delete . A list of the current LUN ma pping will be displayed on the screen. Move the cursor bar to the LUN mapping you wish to delete, then press [ENTER]. Select Yes to delete the LUN mapping, [...]

Terminal O peration 7 - 22 • Pass-th rough SCSI Command s are only int ended to p erform maintenanc e functions for a drive or dev ice on t he d rive sid e. Do not perform any destruct ive comm ands to a disk d rive (i.e. , any co mmand s that write data to a drive media). This will result in inconsistent parity among drives included in a logical[...]

Infort rend 7 - 23 If there is a drive connected after the ar ray is started, choose a drive and press [ENTER]. Choose “S can SCS I drive” , then press [ENTER]. The menu may vary according to the drive status. Choose the drive channel and ID of the d rive you wish to scan, then press [ENTER]. Slot Number Drive Entry These two func tions a re re[...]

Terminal O peration 7 - 24 Move the cursor to a Lo cal Spare Drive or Global Spare Drive, then press [ENTER]. Choose “Delete Global/Loca l Spar e Drive,” then press [ENTER] again. C hoose Yes to conf irm. NOTE: • The spar e drive you dele ted or any dr ive you r eplaced fr om a logical u nit will be indicated as a "used d rive."[...]

Infort rend 7 - 25 7.12 Viewing and Editing SCSI Channels Except for those s hipped in dual-redundant ch assis, SCSI-based controllers use channel 0 as the host channe l and also a s the communications path between controllers. If redund ant controller configuration is prefer red, you ma y need to a ssign other channe ls as host. Flexibility is add[...]

Terminal O peration 7 - 26 View ing and Editing SCSI IDs - Host Channel Choose a host cha nnel, then press [ENTER] . Choose “ View and E dit SCSI ID.” A list of existing ID( s) will be displayed on the screen. You may then choose to a dd or de lete an ex isting ID. View ing and Editing SCSI IDs A dding a SCSI ID (Primary/Secondary Controller ID[...]

Infort rend 7 - 27 Deleting an ID Choose the SC SI ID you wish to d elete. Choose “Delete Channe l SCSI ID.” The dialog box “Delete Primary/Seconda ry Controller SCSI ID?” will appea r . S e lect Ye s , then press [ENT ER] to confirm. IMPORTA NT! • Every ti me you cha nge a channel I D, you must reset the controller for the changes to tak[...]

Terminal O peration 7 - 28 For more details on ID settings in redundant mode, please refer to Chapter 10. Setting a Secondary Controller’s SCSI ID - Driv e Channel Choose a Drive channel, then pr ess [ENTER]. Choose “Sec ondary Controller SCSI ID.” A list of channel IDs displa ys. Assign an ID to the chip processor of the seconda ry c ontroll[...]

Infort rend 7 - 29 Host Channel Move the cursor bar to a channel, then press [ENTER]. Choose “Sync Transfer Clock”, then press [ENTER]. A list of the clock speed will appear. Move the cursor bar to the desired speed a nd press [ENTER] . A d ialog box “ Change Sync Transfe r Clock?” will appear. C hoose Yes to c onf irm. IMPORTA NT! • Ever[...]

Terminal O peration 7 - 30 View ing and Editing SCSI Target / Drive Channel Move the cursor bar to a D rive channel, then press [ENTER]. Select “View and Edit SCSI Targ et,” then press [ENT ER] . A list of all the SCSI targets a nd their current settings will appear. Press [ENTER] on a S CSI target and a menu list will appear on the screen. NOT[...]

Infort rend 7 - 31 Maximum Sy nchronous Transfer Clock Choose “Maximum Sync. Xfer Clock,” then press [ENTER]. A dialog box will appear on the screen. Enter the clock, then press [ENTER] . Maximum Transfer Width Choose “Maximum Xfer Width”, then press [ENTER] . Choose Ye s in the dialog box to confirm the setting. Parity Check Choose “Pa r[...]

Terminal O peration 7 - 32 Disconnecting Support Choose “Disconne ct Support. ” Choose Ye s in the dialog box that follows to confirm the setting. Maximum Tag Count Choose “Maximum Tag Count,” then press [ENTER]. A list of available ta g count numbers will appear. Move the cursor bar to a number, then press [ENTER]. Choose Yes in the dia lo[...]

Infort rend 7 - 33 should work fine with most drives. Cha nging this setting is not recommended unless some particular bus signa l issues occur. All SATA/A TA-ba sed system connects only one drive per SATA/ATA channel. This helps to avoid single drive failure f rom affe cting other dr ives. The max imum mechanica l perf ormance of today’s drives [...]

Terminal O peration 7 - 34 7.13 Sy stem Functions Choose “System Functions” in the main me nu, then press [ENTER]. The System Functions menu displays. M ove the cursor ba r to an item, then press [ENT ER]. Mute Beeper When the controller’s be eper has be en activate d, c hoose “M ute beeper,” then press [ENTER]. Choose “ Ye s ” and pr[...]

Infort rend 7 - 35 or RAIDWatch M anage r is used, you ca n only access the RAID controller by providing the correct password. IMPORTA NT! • The contro ller verifies password when entering the main m enu from th e initial screen or ma king config uration ch ange. If the cont roller is going to be left unattended, the “ Password Va lidation T im[...]

Terminal O peration 7 - 36 The new password will now become the controller’s password. Providing the correct password is necessary when entering the main menu from the initial screen. Disabling the Password To disable or delete the password, press [ENTER] in the empty column that is used for en tering a new password. The existing password will be[...]

Infort rend 7 - 37 7.14 Controller Parameters Controller Name Choose “View and Ed it Configuration Pa ramete rs,” “ Controller Parameters,” then press [ENTER] . The current name displays. Press [ENTER] . Enter a name in the dialog box that prompts, then press [ENTER] . LCD Title Display Controller Name Choose “View and Ed it Configuration[...]

Terminal O peration 7 - 38 Saving NVRA M to Disks You can choose to backup your controller -depend ent configura tion information to disks. We recomme nd using this function to save configura tion information whenever a configuration c hange is made. The information will be d uplicated and distributed to all logical configurations of d r ives. At l[...]

Infort rend 7 - 39 Press Yes to conf ir m. A prompt will notify you that the controller NVRAM data has been successfully restored from disks. Password Validation Timeout Choose “View and Ed it Configuration pa rameter s,” “C ontroller Parameters,” then press [ENTER] . Select “Password Valid ation Timeou t,” and press [ENTER] . Choose to[...]

Terminal O peration 7 - 40 Enter a unique ID for any RAID controller no matter it is conf igured in a single or dual-c ontroller configuration. The unique ID is necessary for the follow ing: 1. A controller-specific identifier that helps controllers to identify its counterpart in a dua l- active configuration. 2. The unique ID is generated into a F[...]

Infort rend 7 - 41 Set Controller Date and Time This sub-menu only appears when the controller is equipped with a real-time clock. Time Zone The contro ller uses GMT (Greenw ich Mean Time), a 24-hours clock. To change the clock to your local time zone, enter the hours later than the Greenwich mean time following a plus (+) sign. For example, ent er[...]

Terminal O peration 7 - 42 7.15 Driv e Information View Drive Information From the “View and Edit SCS I Drives” menu, select the drive that the utility is to performed on, then press [ENTER] . Select “View drive information," then press [ENTER] . SCSI Driv e Utilities From the “View and Edit SCSI Drives” menu, select the drive that t[...]

Infort rend 7 - 43 SCSI Driv e Low-level Format Choose “SCSI Drive Low-leve l Format” a nd confirm by sele cting Yes . IMPORTA NT! • Do not swit ch th e controller’s and /or SCSI d isk drive’s p ower off during the SCSI D rive Low-lev el Format. If any p ower failure occurs during the formatt ing process, t he forma tting m ust be perform[...]

Terminal O peration 7 - 44 SCSI Driv e Read/Write Test From the “View and Edit S CSI Drives” menu, select a new or used drive that the utility is to perform on; then press [ ENTER ]. Select “SCSI Drive Utilities," then press [ ENTER ]. Choose “ Read/Write Test” and press [ ENTER ]. You ca n choose to enable /disable the following opt[...]

Fibre Operat ion 8-1 Fibre Operation 8.1 Overv iew This chapter describes the Fibre-specific functions a vailable since firmware release 3.21 and ab ove. Optional func tions have been implemented for operations using Fibre channel and access control under multiple-host environments such as Stora ge Area Network. Users familiar with Fibre cha nnel c[...]

Infort rend 8-2 8.2 M ajor Concerns Most of the configuration options in this chapter a re directly relate d to controller redundancy. Joining two controllers into a dual-active pair can eliminate most possible points of failure. Configuring a controller pair requires car eful planning a nd proper setup and the requirements can be summarized a s fo[...]

Fibre Operat ion 8-3 performa nce. 2. Host–side dual loop is passively supported and requires the support of multi-path softwa re on the host computer.[...]

Infort rend 8-4 8.3 Supported Features Fibre Chip 1Gbit Fibre Channel: Fibre loops (1 Gbit FC-AL ) comply with the following standards: 1. (FC-PH) X 2.230:1994, 2. (SCSI-FCP) X 3.269:1996, 3. (FC-AL-2) Proj ect 1133-D rev.6.5, 4. (SCSI-2) X3.131-1994, 5. Supporti ng sus tained 1 G igabit/ sec (100MB/sec) t ransfer rates . 6. Each Fibre loop can be [...]

Fibre Operat ion 8-5 Drive IDs: Supported ways to ad dress a Fibre port include Hard a ssigned and Soft assigned. The controller supports automatic loop ID assignment on drive channels. A hard loop a ddress ID c an be assigned to disk drives by enclosure ju mper setting. If the AL_PA configuration on d rive enclosure has been set to a neutr al sta [...]

Infort rend 8-6 Drive C hannel Host Channel 8.4 Configuration: Host and Drive Parameters Channel Mode: All F ibre chan nels can be changed t o operate as “Host,” “D rive,” “RCCOM, ” or “Drive + RCC OM”. C hoose the channe l you wish to change its mode, then press [ENTER] . Choose “Channe l Mode, ” then press [ENTER] . A dialog b[...]

Fibre Operat ion 8-7 Limitati on: 1. If host connection is made in FC- AL mode, there ca n be a total of “16” of Pr imary an d Secondary I Ds. 2. Although host connection in point- to-point mod e is supported, problems might occur when passing IDs of the failed controller to its counterpart. HA fa ilover software is required in this situation t[...]

Infort rend 8-8 View Device Port Name List ( WWPN) This function displays device por t names (host adapte r ID) detected on a host loop. Device port names will be listed here except that of the controller's I/ O processor. The HBA port names detected can be added to the " Host-ID WWN name list " in "View an d Edit Host LUN"[...]

Fibre Operat ion 8-9 A drive enclosure usually ha s drive slots pre-assigned with specific IDs. There are occasions when an ID n eeds to be assigned manually to a device other than an ID pr ovided otherwise. The "set slot number" and th e "add drive entry" functio ns are reserved for Infortrend 's Fa ult-bus opera tion. Vie[...]

Infort rend 8-10 1. Fibre Channel Connection T y pe: Use the ↑ ↑ ↑ ↑ ↓ ↓ ↓ ↓ keys to scroll down to “View and Edit Configura tion Parameters,” "Host-side SCSI Parameters," and th en "Fibre Connection Option." A prompt will display all the options. Select one appropriate for your Fibre c hannel topology. If co[...]

Fibre Operat ion 8-11 Controller firmware automatica lly examines the node na mes and port names of all the connected drives once initiated. If devices on two differ ent drive channels a ppear with the sa me loop ID and port name, controller will consider these two drive channels as a "d ual loop." The dual loop configuration will be disp[...]

Infort rend 8-12 replacement, making the h ost unaware of con troller replacement so that controller failbac k is tota lly transparent. Choose “View a nd Edit Peripheral Devices,” “ Set Periphera l Device Entry," the n enable the " Redundant C ontroller" conf iguration. You will be requested to enter a value for the “Controll[...]

Fibre Operat ion 8-13 2. Communications T raffic Distributed over All Drive Loops : Select all drive loops and configure them as "Drive + RCCOM (Dr ive Loops plus Redund ant Controller Communications). " The communications traf fic be tween the two controllers will be automa tically distributed over all drive loops. ! As displayed above, [...]

Infort rend 8-14 8.5 Multi-Host A ccess Control: LUN Filtering RAID-base d mapping provide s access contr ol over a Stora ge A rea Network where: 1. Servers may share common stora ge; 2. File integrity becomes a problem and access contentions might occur; 3. File access must be coordinated among multiple servers. Figure 8 - 1 Storage Pool RAID Stor[...]

Fibre Operat ion 8-15 Figure 8 - 2 Host- LUN M a ppi ng Creating LUN M asks User can configu re the sto rage subs ystem t o appear as 32 LUNs per Fibre target ID. Each LUN can be mapped with a sto rage unit -a partition or the entire logical drive. The configura tion of logical units depends on host a pplications and how many drives a nd drive chan[...]

Infort rend 8-16 To create LUN masks, sel ect "View and Edit Host LUNs" from the Main Me nu, then select a host data path (cha nnel-ID c ombination). In active-to-a ctive mode, selecting a host channel mea ns selecting either the Primary or the Seconda ry controller I/O path. WWN Name L ist Before ma pping host LUNs, you ma y add host ada[...]

Fibre Operat ion 8-17 Logical Unit to Host LUN Mapping Assign Logical Unit Numbers ( LUNs) to logical units (logica l drives/logical volumes/logical partitions). Select a host cha nnel/ID and then select a LUN n umber. Select a Host LUN and associate a logical unit with it. When a logical unit is selected, you may choose to " Map Host LUN"[...]

Infort rend 8-18 More than one f ilter entry ca n be appende d to a host LUN to compose a more c omplex mapping scheme . LU N map is port name- oriented. You can choose to " Add fr om current d evice list" or "Manual(ly) a dd host filter entry." Pressing [ENTER] on "Add from current device list" will bring forth a list[...]

Fibre Operat ion 8-19 LUN Mask (ID Range) Configuration: Ranges can be established by combining a basis ID with a mask similar to the way routing table entries a re set up on a LAN/WAN. I f t h e p o r t n a m e I D " A N D ' e d " w i t h t h e m a s k e q u a l s t h e b a s i s I D AND'ed with the m ask, then the port name ID[...]

Infort rend 8-20 A ccess Mode: Read Only or Read/Write A particular extended LUN map can be setup with an attribute of "Read Only" in the event that certain hosts may need to read the data on the media but must not be a llowed to change it. In the degenerate case ( range only includes a single ID), dif ferent hosts can be mapped with comp[...]

Fibre Operat ion 8-21 1. Host HBA port name (WWPN) list: Host A = 0x… F111 Host B = 0x… F112 Host C = 0x… F222 2. Controller Conf iguration: • Logical dri ves are LD0 and LD 1. LD0 is partitioned in to two: P0 and P1. • Filter Entry (LUN map) list Configuration Procedure: 1. Create an entry list for the specific logical unit from "Vi[...]

Infort rend 8-22 Entry 3: "LD1-P0, ID=0x… F111, Mask=0x…FFFE, Filter Type = Include, Acces s Mode = R ead Only ." It mean s P0 of LD1 i s 'Read On ly ' fo r Host A and B. Entry 4: "LD1-P0, ID=0x… F222, Mask=0x…FFFF, Filter Type = Include, Access Mode = Rea d/Write." It means Host C can read/write P0 o f LD1.[...]

A dvanced Configurations 9-1 Advanced Configurations This chapter aims to discuss the a dvanced options for c onfiguring and maintaining a RAID system. Each f unction will be given a brief explanation as well as a configuration sample. Termina l screens will be used in the c onfiguration sa mples. Some of the opera tions require basic knowle dge of[...]

A dvanced Configurations 9-2 9.1.1 Clone Fail ing Dri ve: Unlike the similar functions combined with S. M.A.R.T., the “Clone Failing Drive” is a manual function. There are two options for cloning a failing drive: “ Replace after Clone” a nd “Perpetual Clone.” Replace after Clone: Data on the source drive, th e drive with predicted error[...]

Infort rend 9-3 The cloning process will be indicated by a status ba r. You may also quit the status bar by pressing [ESC] to return to the table of the c onnected dr ives. S elect the dr ive indica ted a s “CLONING” by pressing [ENTER] . Select “clone Failing d rive” again to view the current status. You may identify the source drive and c[...]

A dvanced Configurations 9-4 The cloning process will begin with a notification messa ge: Press [ESC] to view the current progress: You may also quit viewing the status bar by pressing [ESC] to return to the previous menu. Select the drive indicated as “CLONING” by pressing [ENTER] . Select “Clone Fa iling Drive” again to view th e progress[...]

Infort rend 9-5 9.1.2 S.M .A .R.T. (Self-Monitoring, An aly sis and Reporting Technol ogy ) This section provide s a brief intr oduction to S.M .A.R. T. as one wa y to predict drive failure and Infortrend’s implementations with S.M.A.R.T. for preventing data loss caused by drive failure. A. Introduction Self- Monitoring, Analysis and Re porting T[...]

A dvanced Configurations 9-6 There are four selections related to the S.M.A.R.T. functions in firmware: Disable: Disable S.M.A.R.T.-related functio ns Detec t Only : S.M.A .R.T. function enabled, controller will send command to enable all drives' S .M.A.R.T. function, if a drive predicts a problem, controller will report the problem in the for[...]

Infort rend 9-7 Configurati on Pr ocedure Enabling the S.M.A . R.T. Feature Follow the procedure below to enable S.M . A .R.T. on all drives. 1. First, ena ble the “Periodic Drive Check Time” f unction. In View and Edit Con figuration ParametersDrive-side SCSI Parame te rsPeriodic Dr ive Check Time, choose a time inte rval. 2. In View and E[...]

A dvanced Configurations 9-8 6. Choose “Predicta ble Failure Te st,” the controller will force the drive to simulate predictable drive errors. 7. Press [ENTER], and after a while (the next time the c ontroller performs “Periodic Drive Check”), the controller will detect the errors simulated by the drive. An error message displays like this:[...]

Infort rend 9-9 3b. Whenever a drive predicts symptom s of predictable drive failure, controller will issue an error message. 4. The “ Detect, Perpet ual Clone” Set ting: 4a. In View and Edit Configuration ParametersDrive-side SCSI Parame tersDrive Pre dictable Fa ilure Mode <SM ART>, choose “Detect, Perpetual Clone.” 4b. You shou[...]

A dvanced Configurations 9-10 original role – it will become a spare d r ive again and sta r t rebuilding the failed drive. 5. The “Detect, Clone+Replace” Function: 5a. In View and Edit Configuration ParametersDrive-side SCSI Parame tersDrive Pre dictable Fa ilure Mode <SM ART>, choose “Detect, Clone+R eplace.” 5b. Make sure you[...]

Infort rend 9-11 Figure 9 - 1 SCSI ID /LUN s 9.2 Host-side and Drive-side SCSI Parameters Forewo rd: SCSI Channel, SCSI I D and LUN A SCS I channel (S CSI bus) ca n connect up to 15 devices (not including the SCSI controller itself) when the Wide function is enab led (16 -bit SCS I). It can c onnect up to 7 devices (not including the controller its[...]

A dvanced Configurations 9-12 From the main menu, select “View and Edit Configuration Parameters,” “Host-side SCSI Parameters,” then press [ENTER] . Choose “Max Number of Concurrent Host-LUN Connection,” then press [ENTER] . A list of available selections will a ppear. M ove cursor bar to an item, then press [ENTER] . Choose Ye s in the[...]

Infort rend 9-13 Maximum Queued I/O Count: This function allows you to c onfigure the ma ximum number of I/O queue the contr olle r can acc ept from the host c ompute r . Choose “Host-side S CSI Par ameters,” then press [ENTER] . Choose “Maximum Q ueued I/O Count,” t hen press [ENTER] . A list of available selections will appear. Move curso[...]

A dvanced Configurations 9-14 host adapter. If the d river is not loaded, the host computer will not be able to use the in-band utility to communicate with the RA ID controller. This is often the case whe n users want to sta rt configuring a RAID using ma nagement sof tware f rom the host. It will be necessary to configure the "Peripheral Devi[...]

Infort rend 9-15 Peripheral Device Ty pe Parameters for Various Operating Sy stems: A host can not “ see” a RAID contr oller UNLESS a logica l unit has been created an d mapped to h ost LUN vi a the RS-232/ front pan el interfa ce; or tha t the "in-ba nd SCSI " connection with the host is established. If users want to start configur i[...]

A dvanced Configurations 9-16 Table 9 - 2 Peripheral Device Ty pe Settings: Device T ype Setting No Device Present 0x7f Direct -access De vice 0 Sequential-acce ss Device 1 Process or T y pe 3 CD-ROM Device 5 Scanner Device 6 MO Device 7 Storage Array Controller Device 0xC Unknown Device 0x1f Cy linder/Head/Sector Mapping: In the worl d of SCSI, dr[...]

Infort rend 9-17 Configuring Sector Ranges/Hea d Ranges/Cylinder Ra nges: Selecting Sector Rang es Selecting Head Ranges Selecting Cylinder Rang es[...]

A dvanced Configurations 9-18 9.2.2 Drive-side Parameters: Choose “Drive- side SCS I Paramete rs,” then press [ENTER] . The Drive-side SCSI pa ra meters menu displays. SCSI Motor Spin- Up When power supply is unable to provide sufficient current to star t all the har d drives a nd controllers a t once, spinning-up ha rd dr ives in a sequence is[...]

Infort rend 9-19 IMPORTA NT! • If the d riv es are configured as “Dela y Motor Sp in-up” or “Moto r Sp in-up in Random Sequenc e,” som e of these d rives ma y not be read y at t he mom ent when the c ontroller ac c esses them wh en powered up . Increa se t he disk access delay time so t h at the cont roller will wait a longer time for th [...]

A dvanced Configurations 9-20 Power off a ll hard d rives and controller, a nd power them on a gain. Hard drives will not spin-up all at once. The controller will spin- up the hard d rives one a t a time at the inte r val of f our se conds. Disk A ccess Delay Time Sets the delay time before the controller tries to access the hard drives af ter powe[...]

Infort rend 9-21 controller to keep waiting for a drive, a nd it may sometimes cause a host timeout. Choose “SCSI I/O T imeout –Defau lt (7 second s),” then pr ess [ENTER] . A list of selections will appear. Move cursor bar to a selection, then press [ENTER] . Choose Yes in the dialog box that follows to confirm the setting. Maximum Tag Count[...]

A dvanced Configurations 9-22 Detection of Drive Hot Swap Follow ed by A uto Rebuild Choose “Per iodic Auto- Detect Failure Drive Swa p Check Time” ; then press [ENTER] . Move the cursor to the desired interval; then press [ENTER] . Choose Ye s in the dialog box that f ollows to confirm the setting. The controller scans drive buses at this inte[...]

Infort rend 9-23 long as no host accesses that drive. Changing the check time to a n y other value allows the controller to check – at the selected time interval – all of the drives that are listed under “ View and Edit SCSI Drives.” If any drive is then removed, the controller will be able to know – even if no host a ccesses tha t drive.[...]

A dvanced Configurations 9-24 IMPORTA NT! • By choosing a time value to e nable the " Periodic D rive Check T ime,” the controller will poll all connected drives throug h the controller’s driv e channels at the assigned interval. Drive remov al will be detected even if a host d oes not at temp t to ac c ess data o n the d riv e. • If t[...]

Infort rend 9-25 9.3 Monitoring and Safety Mechanisms Dy namic Switch Write-Policy Select “View and ed it Configuration para meters” on the main menu and press [ENTER]. Choose “Cac hing Parame te r s,” then pre ss [ENTER] again. The Caching Parameters menu displays. To reduce the chance o f data loss, Write-back caching can be disabled by t[...]

A dvanced Configurations 9-26 3. Power Supply 4. Cooling Element 5. Temperature Senso rs 6. Audible Alarm 7. Enclosure Se r vices Controller Electronics Select the device interfac e then select ind ividua l module to check its status. Controller A uto-Shutdow n - Event Trigger Option Select “View and edit Peripheral Devices” on the main menu an[...]

Infort rend 9-27 Select a co nfigurable time span between the detection of exceeded temperatur e and the co ntroll er’s com mencin g an automati c shutdown. 9.4 Disk A rray Parameters Select “View and edit Configuration parameters” on the ma in menu and press [ENTER]. Choose “Disk A rray Pa rameters, ” then press [ENTER] again. The Disk A[...]

A dvanced Configurations 9-28 Verification on Writes Errors may occur when a hard drive writes data. To avoid th e write error, the contro ller can force h ard drives to verify written data. There are three selectable methods: ! Verifica tion on L D Initializa tion Wr ite s Performs Verify-after- W rite when initia lizing a logical drive ! Verifica[...]

Redundant Controller 10-1 Redundant Controller 10.1 Operation Theory Sample topologies using redunda nt controllers ca n be found in the Hardware Manual that came with your controller or subsystem. The proceeding discussions will focus on the theories and the firmwa re conf iguration of a redundant controller system . Because I/O interfa c es ha ve[...]

Infort rend 10-2 10.1.1 Setup Flow chart Figure 10 - 1 Redundant Controller Conf i guration Flow chart NOTE that some of Infortre nd’s dual- controller c onf igurations come with pre-set IDs for users’ ease of configuration. It is, h owever, always best to check these IDs before proceedin g with configuration. 10.1.2 Considerations Related to P[...]

Redundant Controller 10-3 The physical conne ction between re dundant c ontrollers should be similar to the one shown above . The basic c onf iguration rule s a re: 1. All channels should be connected to both controllers as d iagramme d above o r stru ng across via a comm on backpl ane. Disk drives are connected to both c ontrollers. 2. Cached writ[...]

Infort rend 10-4 The basic conf iguration rule s a re: 1. All channels should be connected to both controllers as d iagramme d above. 2. To reduce the chance o f downtime, more th an one hub or switch can be used to connec t to host c omputer for path r e dundancy. 3. For the Fibre-to-Fibre controllers or RAID systems, there are two options with co[...]

Redundant Controller 10-5 3. W ill those storage volumes be accessed in a multi-host or multi-path configura tion? 4. F ault Tolerance: Enabling the controllers for transparent failover and failback. See 10.1.4 Logical Drive, Logical Volume, and Logical Partitions Listed below are the basics a bout configuring a logical drive f or a redundant contr[...]

Infort rend 10-6 Figure 10 - 3 Grouping Hard Drives Driv e Ch annel 0 Driv e Ch annel 1 ID 5 ID 0 ID 3 ID 2 I D 6 I D 1 I D 0 ID 1 4 4 GB 4 GB 2 GB 2 GB 4 GB 4 GB 2 GB 2 GB RAID 5 8GB RAID 0 6GB Lo g ic a l D r iv e 1 Logi cal Dri ve 0 Local Spare Dri ve of LD1 Glob al Spare Drive ! As diagr ammed a bove, choosing the members of a n ar ray can be f[...]

Redundant Controller 10-7 Drive Channel: Since a ll channels ar e strung betwee n two controller s, ea ch channel is connected to two chip pr ocessors, a nd each proc essor must occupy one channel ID. In redundant mode, both a Primary and a S e c ondary ID must be pr e sent on drive cha nne ls. ! The Primary-Second ary relationship between the cont[...]

Infort rend 10-8 distributed across two hos t ports and managed by both controllers. Figure 10 - 6 Mapping Sy stem Drives (IDs) ! Some operating systems do not read multiple LUNs under single ID. As dia grammed a bove, you may ha ve the host channel to present several IDs and map logical configura tions to these IDs. Each of the se IDs can be id en[...]

Redundant Controller 10-9 How does Failover and Failback Work? A . Channel Bus Below is a sample illustra tion of the redundant controller opera tion: Figure 10 - 7 R edundant Controll er Channel Bus The host computer is conne cted to both the Primary and the Seconda ry controller s. Each c ontroller has two of its S CSI/Fibre channels a ssigned as[...]

Infort rend 10-10 Table 10 - 1 ID Mapping Stat us ( Normal Operati on) Channel ID Status Target Chip 0 (Prim a ry I D) Active Pri. Co ntrolle r channel 0 0 1 (Secondary ID) S t andby Sec. Cont roller channel 0 1 (Secondary ID) Active Sec. Contro ller channel 1 1 0 (Prim a ry I D) Standby Pri. Cont roller channel 1 In the event of controller failure[...]

Redundant Controller 10-11 B. Controller Failover and Failback In an unlikely event of controller failure, the surviving controller will acknowledge the situation and disconnec t with the faile d controller. The surviving controller will then behave as both controllers and serve all the host I/O requests. System failove r is transpare nt to host. S[...]

Redundant Controller 10 - 12 D. Traffic Distribution and Failov er Process The diagram below illustrates a four- channel configuration using channel 0 a s the communica tions path. Channe l 1 se rves a s the host interface and multiple IDs are crea ted to facilitate a ctive-active operation. E ach controlle r occupies eithe r a Primar y ID or a Sec[...]

Infort rend 10 - 13 Figure 10 - 10 Controll er Failover E. Controller Failure Controller failure is managed by the surviving controller. The surviving controller d isables and disconnects from its counterp art while gaining access to all signal paths. The existing controller then proceeds with the en suing event notificatio ns and take-over process[...]

Infort rend 10 - 14 10.2 Preparing Controllers 10.2.1 Requirements: Cabling Requirement s: Communications Channels: - Controller Communica tions (Cac he S ynchroniza tion) Paths: Controller RCC cable Sentin e l RAID A SCSI ca ble (CH 0 ) EonRAID 2510FR Dedicated R CC or RCC over drive loops EonStor Pre-configured RCC routes over the system backpl a[...]

Redundant Controller 10 - 15 Controller Set t i ngs: 1. Enable Redundant Controll e r : "Main Menu " → "View and Edit Periph eral Devices" → "Set Periph eral Device Entry" → "Redunda nt Controller Enable/Disable" 2. Contr oller Unique Identifier : Set unique identifier to each controller. "View &am[...]

Infort rend 10 - 16 10.2.2 Limitations • Both controllers must be exactly the same. Namely, they must opera te with the same f irmware ve rsion, the same size of memory, the sa me number of host and drive channels, etc. If battery ba ckup is prefer red, both should be installed with a ba ttery module. • The takeover process should take less tha[...]

Redundant Controller 10 - 17 The two controller s continuously monitor eac h other. When a c ontroller detects that the other controller is not responding, the working controller will immediately take over and disable the failed controller. However, it is not predicta ble which one of the c ontrollers should fa il. It is necessa ry to connect all o[...]

Infort rend 10 - 18 operating in write-back mode, it is recommended to insta ll a battery module to each contro ller.[...]

Redundant Controller 10 - 19 10.3 Configuration Listed below are steps nece ssary for c onfiguring a re dundant contr oller system: 1. Configure, separately, each controller in the " Autoconfig " m ode. When two controllers are powered on later, firmware will determine which is the Primary controller. 2. If a channel is used a s the commu[...]

Infort rend 10 - 20 10.3.1 Via Front Panel Keyp ad Redundant Configuration Using A utomatic Setting Power-on Co ntroller 1. Make sure Con troller 2 is powered-off. 1. Enable Redundant Control ler Press [ENT] for two seconds on the f ront panel of controller 1 to enter the main menu. Use ▼ or ▲ to navigate thr ough the menus. Choose " View [...]

Redundant Controller 10 - 21 Power-off controller 1, and then power on controller 2. Set co ntroller 2 to " Autocf g " as described previously. Power off controller 2. When the redunda nt controller func tion is set to the "Autocfg" setting, the controllers will decide between themselves which will be the Primary controller. If [...]

Infort rend 10 - 22 Enter a hex number from 0 to FFFFF a nd press [ENTER] . The value you en ter should be different for each co ntroller. Power o ff cont roller 1, then pow er on contro ller 2. Set controller 2 to "Sec ondary" as described above. Power off con troller 2. Starting the Redundant Controllers Power on all ha rd drive s and t[...]

Redundant Controller 10 - 23 Use ▼ or ▲ to select a SCSI ID and press [ENT] to confirm. The configuration change will take effect only after contro ller reset. Host Channel The process of creating Primary and Second ary IDs on host channels is basically the sa me. In “View and Edit SCSI Ch annel s”, press [ENT] to select a host c hanne l. U[...]

Infort rend 10 - 24 Choose "Logical Drive Assignment..," then press [ENT] . The message "Redud Ctlr LG Assign Se c Ctlr?" will appear. Press [ENT] for two seconds to confirm. The logical drive ha s now been assigned to the Second ary controlle r . Map the logical dr ive ( or a ny logica l unit) to a host ID or LUN number under t[...]

Redundant Controller 10 - 25 Repeat the process to map all the logical units to host ID/LUNs. Front Panel View of Controller Failure What will happen when one of the controller s fails? Should one of the controllers fa il, the existing controller will automatically take over within a few second s. The red ATTEN LED will light up, and the message &q[...]

Infort rend 10 - 26 Choose "Set Peripheral Device Entry..," then press [ENT] . Choose "Redundant Ctlr Func tion__," the n press [ENT] . The message "Redundant Ctlr Autocf g Degraded" will appear on the LCD. Press [ENT] and the message "Deassert Reset on Failed Ctlr?" will appear. Press [ENT] for two second s [...]

Redundant Controller 10 - 27 current setting will be displayed on the screen. If this controller has never been set as a redundant controller before, the default setting is "Disabled." The message "Redundant Controller - Disabled" will be displayed on the screen. Press [ENTER] to proceed.) The message "Enable Redunda nt Con[...]

Infort rend 10 - 28 Choose "Redund ant Controller [Function]," and then press [ENTER] . (Note: The current setting will be displayed on the screen. If this controller has never been set as a redundant controller before, the default setting is "Disabled". The message "Redund ant Controller - Disabled" will be displayed [...]

Redundant Controller 10 - 29 Creating Primary and Secondary ID Enter "View and Edi t SCSI Channels ." Press [ENTER] and select the host or drive channel on which you wish to create Prima ry/Seconda r y ID. Drive Channe l Host Channel The configuration change will only take eff ect after controller reset. A ssigning Logical Drives to the S[...]

Infort rend 10 - 30 Assignments," then press [ENTER] . Choose Yes and press [ENTER] to confirm re a ssignment to the Se condar y C ontr oller. The reassignment is evident from the "View and Edit Logical Drives" screen. "S0" indicates tha t the logical drive is logical drive 0 assigned to the Seconda ry Controller . Mapping [...]

Redundant Controller 10 - 31 Terminal Interface View of Controller Failure What will happen when one of the controller s fails? When one of the controllers fails, the other controller will take over in a few seconds. A warning will be displayed that a "SCSI Bus Reset Issued" f or each of the SCSI channel s. In addition, there will be an a[...]

Infort rend 10 - 32 When the new controlle r is connecte d, the existing contr oller will automatically start initializin g the replacement con troller (IFT-3102U2G and above). If the existing con troller does no t initialize the replacement controller, e xecute the " Deassert Re se t on Failed C ontr oller" func tion. If the replacement [...]

Redundant Controller 10 - 33 Forcing Controller Failover for Testing This function is reserved for de-bugging. Testing the failover functionality can be performed using the following methods. 1. Pulling out one of the cont rollers to si mulate cont roller failure Pull out either the primary or the secondary controller An error message will display [...]

Infort rend 10 - 34 RCC Status (Redundant Controller Communic ations Channel) The item is display only, showing the current communications route. Secondary Controller RS-232 This is an option reserved for debug purposes. When ena bled, you can access the secondary controller through its seria l port. When combined into a redundant controller system[...]

Record of Settings 11-1 Record of Settings In addition to saving the configura tion data in NVRAM to disk, keeping a ha rd copy of the controller conf iguration is also recommended. This will speed the recreation of the RAID in the event of a disaster. The following tables are provided as a model f or recording the configuration d ata. As a general[...]

Infort rend 11-2 #LN #SB #FL NA ME Disk reserved spac e Partition Information LG Partition Size (MB) LG Pa rtition Size (MB)[...]

Record of Settings 11-3 11.2 View and Edit Logical Volumes Logical Volume Information LV ID Size #LD Stripe s ize Partition Information LV Partition Size (M B) LV Partitio n Size (M B)[...]

Infort rend 11-4 11.3 View and Edit Host LUN’s LUN Mappings Host Channel Pri. / Sec. Controller S CS I ID LUN Logical Drive / Logical Volume Partition Size Host-ID/WWN Name List Host-I D/ W W N Name Lis t Access Restriction Setting Logical Drive / Logical Volume Partit i on Read Only / A c cess Denied to / R/ W by: H B A WWN li st[...]

Record of Settings 11-5 Host Filter Entries LUN LV/L D DR V Partition Size (M B) RAID LV/LD Partition ? Host- I D /WWN Host- I D /WWN Mask Filter Typ e Access Mode Name[...]

Infort rend 11-6 11.4 View and Edit SCSI Drives Slot Chl ID Size (MB) Speed LG DRV? Global Spare? Local Spare? Vendor & Produc t ID LG LG LG LG LG LG LG LG LG LG LG LG LG LG[...]

Record of Settings 11-7 11.5 View and Edit SCSI Channels Chl Mode (Host / Drive) Primary Controller SCSI ID( s) Secondary Controller SCSI ID( s) Default Sync Clock Default Wi d e Term inator Diff/Enable/ Disable/ Current Sync Clock Current Wi d th Parity Chec k View channel host - I D /WWN View device port nam e list (W W P N)[...]

Infort rend 11-8 11.6 View and Edit Configuration Parameters Communication Parameters RS- 232 Port Con fig urati on COM 1 (RS -232 Port) Baud Rate 2400 4800 9600 19200 38400 Data R outing Direc t to P ort Through Network Terminal E m ulati on Enabled Di sabled COM 2 (Redun dant Cont roller Port) Baud Rate 2400 4800 9600 19200 38400 Data R outing Di[...]

Record of Settings 11-9 Dial-out Ret ry Count Ret ry _____ times Dial-out Ret ry I nterval _____ Minutes Dial-out on Event Condition Dis abled Critical Events Only Critic al E vent s and W arnings All Event s , W arni ngs and Notifi c ations Caching Parameters W rite-ba ck Cach e Enabled Dis abled Optimizatio n for Random I/ O Sequential I /O Host [...]

Infort rend 11-10 Disk Array Parameters Rebu ild Priority Low Normal Improved High Verific ations on W rites Verific ations on LD Initializa tion Writes Enabl ed Disabled Verific ations on LD Rebuild W rites Enabl ed Disabled Verific ations on Normal Dri ve W rites E nabled Disabl ed Redundant Con troller Parameters Redundant Controll er Comm unica[...]

Record of Settings 11-11 11.7 View and Edit Peripheral Devices Set Peripheral Device Entry Redundant Controll er Enabled Dis abled Power Supply Stat us Enabled Dis abled Fan Status E nabled Disabl ed Temperature S tatus Enabled Dis abled UPS Status E nabled Disabl ed Define Peripheral Device Active Signal Power Supply Fail Si gnal Active High Acti [...]

Infort rend 11-12 Thresholds f or +5V Upper ________ Low er ________ Thresholds f or +12V Upper ________ L ow er ________ Thresholds f or CPU tem perature Upper ________ Lo we r ________ Thresholds f or Board Temperature Upper ________ L ow er ________ 11.8 Sav e NVRA M to Disk, Restore from Disk Update Firm ware Date Save NVRA M to Disk or File Da[...]

A dvanced Configurations 12-1 Array Expansion The array expansion functions allow you to ex pand storage ca pacity without the costs on buying new equipment. The expansion can be completed on-line while system is serving host I/Os. This chapter is organize d a s follows: 12. 1 Overview Note on using the expansion functions 12.2 Mode 1 Expansi on Th[...]

Infort rend 12-2 from the original members to larger drives, and then the smaller drives can be replaced withou t powering down the system. Note on Expansion 1. Added Capacity: When a new drive is added to an existing logica l drive, the capacity brought by the new d rive appea rs as a new pa rtition. Assumi ng th at you h ave 4 physi cal drives (e[...]

A rra y E x pansion 12-3 Expand Logical Dr i ve: Re-Stri ping Figure 12 - 1 Logical Drive Expansion RAID levels suppo rted: RAID 0, 3, and 5 Expansion can be perf ormed on logical dr ives or logica l volumes under the f ollowing conditions: 1. There is an unused capacity in a logica l unit 2. Capacity is increased by using member dr ives of larger [...]

Infort rend 12-4 12.2 M ode 1 Expansion: A dding Drives to a Logical Driv e Use drives of the same ca pacity as that of the original drive members. Once completed, the added capacity will appea r as another partition (new partition) . Data is automa tically re-striped across the new an d old memb ers during th e add-drive process. See the diagram b[...]

A rra y E x pansion 12-5 Press [ENTER] to select a logical dr ive and choose “add SCSI drives” f rom the submenu. Pr oc e ed with confir ming the selection. Available drives will be listed. Select one or more drive(s) to add to the target logical drive by pressing [ENTER]. The selected drive will be indicated by an asterisk “ * ” mark. Pres[...]

Infort rend 12-6 Upon completion, there will appear a confirming notif ication. The capacity of the ad d e d d r ive will a ppear as an unused partition. The added ca pacity will be a utomatically includ ed, meaning that you do not have to "expand logical drive" later. M ap the adde d capacity to a nother host ID/LU N to ma ke use of it. [...]

A rra y E x pansion 12-7 12.3 Mode 2 Expansion: Copy and Replace Driv es w ith Drives of Larger Capacity You may also expand your logical drives by copying and repla cing all member drives with drives of higher capacity. Plea se refer to the diagram below for a better understanding. The existing data in the array is copied onto the new drives, and [...]

Infort rend 12-8 The array members will be listed. Select the member drive (the source drive) you want to replace with a larger one. S elect one of the members as th e "sourc e drive" (status indicated as ON-LINE) by pressing [ENTER] , a table of a vailable drives will prompt. Select a "new dr ive" to copy the capacity of the so[...]

A rra y E x pansion 12-9 Completion of t he Copy and Replace process will be indicated by a notification message. Follow the same method to copy and replac e every member drive. You may now perform “Expand Logical Drive” to make use of the added capacity, and then map the additional capacity to a Host LUN. 12.4 Making Use of the A dded Capacity[...]

Infort rend 12-10 Choose Ye s to confirm a nd procee d . Upon completion, you will be prompted by the notification messa ge. Press [ESC] to return to the previous menu screen. The total capacity of logica l drive has been expanded to 6 Gigabytes.[...]

A rra y E x pansion 12-11 12.5 Expand Logical V olume To expand a logical volume, expa nd its logical drive member(s) and then perform “expand logical volume.” When prompted by "E xpand Logica l Volume?" , Choose Yes to confirm and the process will be completed immedia tely.[...]

Infort rend 12-12 12.6 Configuration Example: V o lume Extension in Windo w s 2000 ® Ser v er Limitations When Using Windows 2000 1. Applies o nly to the Wi ndows NT Server or Windows 2000 Server Disk Managem ent which in cludes the Extend Volume Set function; Windows NT Workstation d oes not support this feature. The volume set expansio n formats[...]

A rra y E x pansion 12-13 You can view in formatio n about this drive in the Win dows 2000 Server’s Computer Managemen t -> Storage -> D isk Management. Place the cursor on Disk 1, right-click your mouse, and select “Properties.” You will see that the total ca pacity for the Drive E: is about 16.5G B.[...]

Infort rend 12-14 Follow the steps described in the previous section to "add" or "copy & replace" SCSI disk dri ves and perform Logical Drive Expans ion. The 16.5GB lo gical dri ve has becom e a 25GB lo gical driv e. Place the cursor on that logical drive, and then press [ENTER] . From the menu, select "Partition Logica[...]

A rra y E x pansion 12-15 Return to Win dows 2000 Server’ s Disk Managemen t. There n ow exists a D isk 2 wi th 8.3GB of free space. You m ay use the “rescan disks” command to bring up the new dr ive. Select an existing volume (Disk1) a nd then right-click on the disk column. Select “Extend Volume” to proceed .[...]

Infort rend 12-16 The Extend Volume Wizard should guide you through the rest of the process. The screen will display that volume set of Drive E: ha s been extended in to a span ned volum e by the 8.3G B in Di sk2. Logical Drive E: is now composed of two partitions with a total volume of 2500MB. To see thi s, hol d down o n the < Ctrl> k ey an[...]

A rra y E x pansion 12-17 Drive E: now ha s a capac ity of about 2 5 GB.[...]

Navigation Map A- 1 LCD Key pad Navigation Map LCD display text Task to be performed, or the task to be perform ed for the confi gura t ion to take effe ct (red text ) Pres s EN T on on e me nu item to acce s s mu lt iple opt ion s After selecting the opti on, press ESC or ENT to move on to the next item Move on to the next menu screen or option by[...]

Infort rend A- 2 View and Edit Logica l Volume ↕ ↕ ↕ ↕ View Logical Drives.. Delete L ogical Vol ume.. Partition L ogi cal Volume .. Logical Volume Assignment.. Expand Logical Volume.. LV=* Not Defined ? LV=* Selected To Select LD Drives LG* RAID* DRV=* ****MB GD SB=* Create Logical Volume ? Change Logical Volume P arams ? Logical Volu me A[...]

Navigation Map A- 3 View and E dit SCSI Drive s ↕ ↕ ↕ ↕ View Drive Infor mation.. Assign Local Spare D rive.. Assign Global Spar e Drive.. Delete Sp are Drive.. Scan New SCSI Drive.. Add Drive Entry.. Toggle Drive Fai lure Signal.. Identi fy Drive.. SCSI Driv e Utilit ies.. List of Physi cal Drives Clone Faili ng drive.. Auto Reassign Disa [...]

Infort rend A- 4 View an d Edit SCSI C hanne ls ↕ ↕ ↕ ↕ Redefi ne Channel Mode.. Parity Check Enabled/ Disabled Set S CSI Chan nel Ter mina tor .. Sync. Transfer Speed.. Set Transfer Wi dth.. View C hip In formati on Redefi ne Channel Mode Set S CSI Chan nel ID View C hip In formati on Set S CSI Chan nel Pri . Ctl r I D.. Select a Host or D[...]

Navigation Map A- 5 View and Edit Configuration Pa rameters ↕ ↕ ↕ ↕ Comm un icat ion S t atus. . RS-232 Port Config uration. . PPP C onfiguration.. Modem O pera tion. . Com1 Configuration .. SNMP Configuration.. Com2 Configuration .. Modem S tatus .. PPP S tatus .. Baud- rate 3840 0 Chan ge to 9600 19 200 4 800 2 400? Comm Route PPP Change [...]

Infort rend A- 6 Motor Spin-Up Reset at Power- Up Init D i sk Ac ce ss Del ay - SCSI I/O T imeout Periodic SAF-TE ChkTime - Maximum T ag Coun t Pe riod ic Dri ve Chk Time - Periodic Drv Swa p AutoChk - SMART Mode - Fibre Chl Dua l Loop - Enable/Disable Motor Spin-Up ? Enable/Disabl e Rese t at Power-Up ? S et Disk De lay Time - No D elay to 7 5 sec[...]

Navigation Map A- 7 System Functi ons ↕ ↕ ↕ ↕ Mute Beep er.. Change Pa ssword .. Reset This C on troller.. Shutdo w n This Contr oller Controller M aintenance. . Mute Beep er ? New Pas sword :  Old Pa sswor d:  Re-Ent P Passwor d:  Change Pa ssword Successful New Pas sword :  Re-Ent P Passwor d:  Change Pa ssword Successful R[...]

Firmware Functionality Specifications B-1 Firmware Functionality Specifications Basic RAID Management: Specifi cation Featu re RAID Levels 0, 1(0+1), 3, 5, 10, 30, and 50 (Multi-l evel RA ID with the logical vo lum e im plem entation) Maximum Number of logical drives 64 or 128 t hrough O EM IAP PEND uti lit y RAID level dependency to each logi cal [...]

Infort rend B-2 Auto-sc an of repl acemen t drive upon manually initiated rebuild Supporte d One-step rebuild onto a replacement drive Sup ported Immediate logical drive availabilit y Supporte d A uto-rebuild onto failed drive repl acemen t Supporte d. W ith no spare drive, the contro ller wi ll auto-scan t he fai led drive and star ts rebu ild aut[...]

Firmware Functionality Specifications B-3 Host LUN Geometry User Configurable De fault Geometry : 1. Capacit y <64GB: Hea d= 63, Sec t or =3 2, C ylinder = ? (depends on capaci ty) 2. 64GB<capac it y<128GB:Hea d=64 , Sec tor=64, Cylinder= ? (depen ds on cap acit y) 3. 128GB <capac ity<256G B: Hea d=127, Sec tor=6 4, Cylinder= ? (depe[...]

Infort rend B-4 RAID1 128 32 RAID3 16 4 RAID5 128 32 Caching Optimization • Cache buf fer s orting prior to cach e flush o peration • Gathering of writes during f lush op eration t o m inimize th e num ber of IOs require d for par ity upd ate • Elevator sorting and gat hering of drive IOs • Multiple concurrent drive IOs (ta gged c ommands) [...]

Firmware Functionality Specifications B-5 Fibre Channel Suppor t: Fibre Channel Support Al l Firm ware suppor ts Fibr e Chan nels Channel Mode All chan nels c onfigura ble to Host or Dr ive m ode, user configur able. Redundant controller Redunda nt using F C contr ollers supported. Host-side loop failure detection Sup ported. T he LIPs on the host [...]

Infort rend B-6 S.M. A .R.T . Support: Copy & Replace Driv e Supported. User can c hoose to c lone a m ember drive before dr ive failur e. Drive S.M.A.R.T. Support Sup porte d, with int el ligent error hand lin g implem entations . User select able mod es for S.M. A.R.T. 1. Detect o nl y 2. Perpetual C lone o n detectio n of S. M.A.R.T . cond i[...]

Firmware Functionality Specifications B-7 Redundant Controller Communication over Fibre loops Dedicated loops or distr ibution over dri ve loops selec table No Single-point-of- failure Supporte d. A utomatic engagement of replac ement controller Supporte d in Po werPC series Dynamic cache me mory allocation Yes. Ca che m emor y is dynam icall y all[...]

Infort rend B-8 Verification on LD initialization writes Supporte d. Perf orm s read-af ter - write during log ica l drive initiali zatio n to ensur e dat a is pr operl y written t o drives . Drive S.M .A.R.T . support Supported. Dr ive f ailure is predict able with refer ence to the vari ables de tected. Reac tio n schem es ar e selecta ble from D[...]

Firmware Functionality Specifications B-9 Environment M anagement: SAF-TE/S.E.S. support Supported. T he SAF- TE/S.E .S. m odules can be connecte d to the drive chann el, the co ntr o ller wi ll detect er rors f rom SAF -TE/S.E.S . dev ices or no tif y drive f ailure via S AF-T E/S.E.S.. • Both S AF-TE/S.E .S. via dr ive and d evice-s elf- interf[...]

Infort rend B-10 User Interface: RAIDWatc h on-board Out-of -band conf igurati on vi a LAN. Br owser acces sible co nfigurat ion opt ion b y insta lling RAIDW atch to res erved spac e on dr ive via f tp. RS-232C Terminal Supports term inal m odes: A NSI, VT -100, ANSI Co lor. Provid es m enu-drive n user-f riendl y text-bas ed interfac e. Graphical[...]

Firmware Functionality Specifications B-11 JBOD-Specific: Format Restore contr oller-m aintaine d defec t list to default Reassign Blo cks Add entr y to the defect l ist m aintained b y contro ller on disk drives Write-v erification W rite following b y a v erif y SM ART Sense data a nd m ode param eters suppor t Special mod e paramet ers Error han[...]

Sys tem Functions: Upgra ding Fir mware C-1 System Functions: Upgrading Firmware Upgrading Firmw are The RAID contro ller’s firmware resides in flash memory that can be updated throug h the COM port, LAN po rt, or via In-band SCSI. New releases of firmware are av ailable in the form of a DOS file in the "pub" dir ectory of Inf ortrend?[...]

Infort rend C-2 will hand over the workload and then reset itself for the new firmware to take effect. The rolling upgrade is automa tically performed by contro ller firmware and user's interven tion is not necessary. Redundant Controller Firmw are Sync-v ersion: A controller used to replace a failed unit in a d ual-controller system is often [...]

Sys tem Functions: Upgra ding Fir mware C-3 Upgrade Both Boot Record and Firmw are Bi nari es 1. Connect to the RAID system loca lly or from a remote host using RAIDWatch M anager . While connecte d to the RA ID system, there will be icon(s) with IP add ress specified on the left of the menu screen. Select by double-clicking the icon of the RAID sy[...]

Infort rend C-4 Upgrade the Firmw are Binary Only 1. Connect to the RAID system loca lly or from a remote host using RAIDWatch M anager . While connecte d to the RA ID system, there will be icon(s) with IP add ress specified on the left of the menu screen. Select by double-clicking the icon of the RAID system which firmware is to be upgraded. S ele[...]

Sys tem Functions: Upgra ding Fir mware C-5 Establishi ng t he connect i on f or the RS-232C Terminal Emulat i on Please re fer to cha pter 4, “Connect ing to Termina l Emula t ion, ” a nd also your har dware ma nual for d etails on establishing the connection. Upgrading Both Boot Record and Fi rmw are Bi nari es 1. From the Ma in M enu, scroll[...]

Infort rend C-6 Upgrading the Firmw are Bi nary Only 1. From the Ma in M enu, scroll d own to "System Functions. " 2. Go to "Controller M aintena nc e ." 3. Choose "Downloa d Firmware . " 4. Set ZMODE M as the f ile transfer protocol of your terminal emulation softwa re. 5. Send the Firmware Binary to the co ntroller. [...]

Event M essag es D-1 Event Messages The controller events can be ca tegorized a s f ollow s: Alert Errors tha t need to a tte nd to immed iately Warning Errors Notificati on Command proces sed mes sage sent f rom Fir mware The controller records all system events from power on, it can reco rd up to 1,000 events. To power off or to reset the control[...]

Infort rend D-2 Notification: [0181] Controller In itializatio n Comple ted [0187] M emory is Now Suff icient to Fully Support C urrent Conf ig. [0189] NVR AM Factory Default s Restored [0189] NVR AM Resto re from Disk i s Completed [0189] NVRA M Restore from File i s Completed Drive SCSI Channel/Drive Error Drive: War ning: [1101] CHL:_ ID:_ SCSI [...]

Event M essag es D-3 [113f] CHL:_ ID :_ NOTICE: Redu ndant P ath for Chl:_ I D:_ Restor ed Logical Drive Ev ent Alert: [2101] LG: <N A/Logi cal Drive Index> Logi cal Drive ALERT: CHL:_ ID :_ SCSI Drive Failure [2103] LG:_ Logical Drive A L E RT: Rebui ld Fa iled [2106] LG:_ Log ical Dri ve ALERT: Add SCSI Dri ve Operation Failed War ning: [21[...]

Infort rend D-4 Temperature Detected (_._C ) [3f22] Periphera l Device ALERT: Controller FA N _ Not Present or Fail ure Detected [3f22] Periphera l Device ALERT: Controller FA N _ <high/lo w thres hold> Speed Detected (_RPM) [3f21] Peripheral Device ALERT: + 3.3V <upper/lower threshold> Voltage Detected (_ ) [3f21] Peripheral Device ALE[...]

Event M essag es D-5 Unknow n Status> ! [3f23] SES (C_ I _) Temperature Sens or _: <Ven dor descriptor st rings/Device Not Available>! [3f24] SES (C_ I _) UPS _: < Vendor des criptor string s/Device Not Supported> ! [3f24] SES (C_ I _) UPS _: < Vendor des criptor stri ngs/Device Not in stalled>! [3f24] SES (C_ I _) UPS _: < [...]

Infort rend D-6 [3fa2] NOTICE: Con troller FAN _ Back On-Line (_ RP M) I 2 C Device: [3fa3] NOTICE: Temperature _ Back to Non -Critical Levels [3fa3] NOTICE: Temperature _ is present [3fa3] NOTICE: Temperat ure _ Back to Non -Critical Levels (_(C/ F)) [3fa2] NOTICE: FAN _ Back O n-Line [3fa2] NOTICE: FAN _ is Present [3fa2] NOTICE: FAN _ Back O n-L[...]

Event M essag es D-7 Con trolle r Even t Alert: 2-Line LCD DR AM Parity Error Detected Terminal [0104] Controller ALERT: D RAM Parity Error Detected Event Typ e ! Alert " Warnin g " Notification What Happens? A DRAM parity error encountered. What to Do? Contact your RAI D sy stem supplier and repla ce with ne w module(s) if necessary. 2-L[...]

Infort rend D-8 2-Line LCD Power Supply Unstable or NV RAM Fa iled Terminal [0 1 14] Controller ALERT: Power S uppl y Unstable or NV RAM Fa iled Event Typ e ! Alert " Warnin g " Notification What Happens? The outp ut vol tage dr ops below prese t t hres hold s or NV RAM compone nt failur e. What to Do? War ning: 2-Line LCD Memory Not Suff[...]

Event M essag es D-9 2-Line LCD NVRAM Re stor e fro m Disk is C omplete d Terminal [0189] NVRAM Res tore from Disk is Com pleted Event Typ e " Alert " Warning ! Notification What Happens? Firmware conf ig uration da ta previously saved to d is k is restored. What to Do? 2-Line LCD NVRAM Restore fro m File is Completed Terminal [0 1 89] NV[...]

Infort rend D-10 Drive SC SI Ch ann el/Driv e Error Drive War ning: 2-Line LCD C:_ I:_ SCSI Target ALERT Terminal [1101] CHL:_ ID:_ SCSI Target ALERT: Unexpected Select Tim eout Event Typ e " Alert ! Warnin g " Notification What Happens? Drive SCSI target select time out. The specif ied ha rd drive cannot be selected by the controller. Wh[...]

Event M essag es D-1 1 2-Line LCD C:_ I:_ Timeo ut Wait ing for I/O Terminal [1105] CHL:_ ID:_ SCSI Targ et ALERT: Tim eout W aiting fo r I/O to Complete Event Typ e " Alert ! Warnin g " Notification What Happens? Drive-side SCSI target I/O timeout. Possible drive-side cabling/te rminati on and ca nister c on necti on a bnorma l o r drive[...]

Infort rend D-12 2-Line LCD C:_ SCSI Dri ve Channel Notification : SCSI Bus Res et Issued Terminal [110f] CHL:_ SCSI D rive Chan nel Noti fication: SCSI Bus Reset I ssued Event Typ e " Alert ! Warnin g " Notification What Happens? SCSI bus reset issued What to Do? 2-Line LCD C:_ I:_ SCSI Target ALERT: Unexpected Drive No t Ready Terminal [...]

Event M essag es D-13 2-Line LCD C=_ I= _ Unexpected Sense R ec. Terminal [1115] CHL:_ ID:_ SCSI Drive ALERT: Un expected Sense Received ( Sense_key Sen se_code ) Event Typ e " Alert ! Warnin g " Notification What Happens? Drive-side SCSI drive unexpected sense data received. What to Do? Checking drive-side ca bli ng/terminatio n/drive ca[...]

Infort rend D-14 2-Line LCD C:_ I:_ Predictable Failure Detected (TEST) Terminal [1142] SMART-CH:_ ID:_ Predictable Failure Detected (TEST) Event Typ e " Alert ! Warnin g " Notification What Happens? This message a ppears when si mulating t he SMART detect f unction. This message s hows that your d r ive s support S MART functi on s. What[...]

Event M essag es D-15 Channel: War ning: 2-Line LCD Chl:_ Redunda nt Loo p Conne c ti on Err or Detecte d on ID:_ Terminal [113f] CHL:_ ALERT: R edundan t Loop Connecti on Error D etected on ID:_ Event Typ e " Alert ! Warnin g " Notification What Happens? One of the dual loop members may have failed or been disconnected. Make sure all cha[...]

Infort rend D-16 2-Line LCD C:_ I:_ -Red Path for C:_ I:_ Fail ure Detected Terminal [113f] CHL:_ ID:_ ALER T: Redun dant Path for Ch l:_ ID:_ F ailure Detected Event Typ e " Alert ! Warnin g " Notification What Happens? Discon nectio n w ith the pa ir loop ma y have occ urred . What to Do? Press <ESC> to clear the me ssage. Notific[...]

Event M essag es D-17 Logical Dri ve Event: Alert: 2-Line LCD CHL:_ ID=_ Drive Failure Terminal [2101] LG: <NA/Lo gical Drive In dex> Logical Drive ALER T: CHL:_ ID:_ SCSI Drive Failure Event Typ e ! Alert " Warnin g " Notification What Happens? The specified hard d r ive in t he specified logical d rive ha s failed. What to Do? If [...]

Infort rend D-18 War ning: 2-Line LCD LG ALERT: Init Failed! Terminal [2 1 02] LG:_ Logical Drive AL E RT: Initial ization Fa iled Event Typ e " Alert ! Warnin g " Notification What Happens? Logical drive in itia lizati on f a iled. It could res ult f r o m one of the following rea sons: 1. Logical drive initia l ization cance led by user[...]

Event M essag es D-19 Terminal [2183] LG_ Logical Drive NO TICE: Starting Rebuild Event Typ e " Alert " Warning ! Notification What Happens? The rebuild pr oc e ss has be g un. What to Do? This is the message d isp layed whe n a stand-by spa re is available or when a faulty drive i s replaced. The contr oller auto matically detect s a dri[...]

Infort rend D-20 2-Line LCD LG= _ Expansion Comp leted Terminal [2 188] E x pa nsion of Logic al Drive_ C ompleted Event Typ e " Alert " Warning ! Notification What Happens? Logical drive expansi on comp leted. What to Do? Press <ESC> to clear the me ssage. 2-Line LCD LG= _ Logical Drive NOTICE: Startin g Add SCSI Drive Operation Te[...]

Event M essag es D-21 2-Line LCD C:_ I:_ St artin g Clon e Terminal [21a1] LG_ Logical Drive NO TICE: CHL:_ ID:_ St arting Clone Event Typ e " Alert " Warning ! Notification What Happens? This message is d isplayed w hen a member d r ive is ma nually cl oned t o a spare, or that a spa re is automatically a pplied t o clone a faulty member[...]

Infort rend D-22 General T arget Even ts: Alert: SAF-TE Device: 2-Line LCD SAFTE_: Power (_) Failure Detected Terminal [3 F2 1 ] SAF-TE Device (_) A LERT: Power Suppl y Fa ilure Detec ted (_) Event Typ e ! Alert " Warnin g " Notification What Happens? Power supply fa ilure d e tected by S AF-TE enclosure manageme nt. What to Do? Check the[...]

Event M essag es D-23 Controller On-boar d: 2-Line LCD CPU (_._) Tem p Detected Terminal [3f23] Peripheral Device ALERT: CPU Temperature <high/low threshold> Temperature Detected (_._C) Event Typ e ! Alert " Warnin g " Notification What Happens? The detected CPU temperature is higher or lower than the preset thresholds. What to Do? [...]

Infort rend D-24 2-Line LCD High/Low +3.3V Voltage Detected (_.__) Terminal [3F21] Peripheral Device ALERT: +3.3V <upper/lower th reshold> Voltage Detected ( _ ) Event Typ e ! Alert " Warnin g " Notification What Happens? The detected +3.3V voltage source is now higher or lower than the preset voltage threshold. What to Do? Check po[...]

Event M essag es D-25 I 2 C Device: 2-Line LCD Temp Sensor_ Fa il ure Dete c t e d Terminal [3F23] Peripheral Device ALER T: Temperature Sen sor_ Fai lure Detected Event Typ e ! Alert " Warnin g " Notification What Happens? The designated temperature sensor has failed. This may be caused by mistakes wit h de vice ta rget setting or d evic[...]

Infort rend D-26 Terminal [3 F2 2] Peripheral Device ALE RT: <high/low thres hold> Fan_ Speed Detected (_ RPM) Event Typ e ! Alert " Warnin g " Notification What Happens? Enclosure fans higher or lower rotation speed detected. What to Do? Contact your sy stem ve ndor for re placi ng the c oolin g fan. 2-Line LCD Power Supply_ Failur[...]

Event M essag es D-27[...]

Infort rend D-28 SES Devic e: 2-Line LCD (_._) Power Supply_: Device Not Supported Terminal [3f21] SES (C_I_) Power Supply_: <Ven dor descriptor strings/Device Not Supported>! Event Typ e ! Alert " Warnin g " Notification What Happens? Unrecognizable device type. What to Do? Press <ESC> to clear the me ssage. 2-Line LCD (_._) [...]

Event M essag es D-29 Terminal [3f22] SES (C_I_) Cool ing element_: <V endor descriptor stri ngs/Device Not Installed> ! Event Typ e ! Alert " Warnin g " Notification What Happens? The installed d e vice is m issing What to Do? Check loop connectio n and contact your s ystem prov ider for help. 2-Line LCD (_._) Cooling element_ : De[...]

Infort rend D-30 Terminal [3f23] SES (C_I_) Temperature Sen sor_: < Vendor descri ptor strings/Device U n known S tatus>! Event Typ e ! Alert " Warnin g " Notification What Happens? What to Do? Press <ESC> to clear the me ssage. 2-Line LCD (_._) Temp Sen sor_: Device Not Available Terminal [3f23] SES (C_I_) Temperature Sen sor[...]

Event M essag es D-31 Terminal [3f24] SES (C_I_) UPS_: <Vendor des criptor strings/D evice Not Available>! Event Typ e ! Alert " Warnin g " Notification What Happens? What to Do? Press <ESC> to clear the me ssage. 2-Line LCD (_._) Volta ge S ensor_: De vice Not Supp orted Terminal [3 f21] S ES (C_ I_) Voltage Sensor_ : <Ven[...]

Infort rend D-32 Terminal [3f21] SES (C_I_) Current Sens or_: <Vendor descriptor strings/Device Not Supported>! Event Typ e ! Alert " Warnin g " Notification What Happens? What to Do? Press <ESC> to clear the me ssage. 2-Line LCD (_._) Cur r ent Sensor_ : Device Not In stalled Terminal [3f21] SES (C_I_) Current Sens or_: <V[...]

Event M essag es D-33 General Periphe ral Devi ce: 2-Line LCD Power Supply Failure Detected Terminal [3 f 2 1] Peripheral Device ALERT: Power S upply Fa il ure Detected Event Typ e ! Alert " Warnin g " Notification What Happens? Power supply failure d e tected What to Do? Press <ESC> to clear the me ssage. 2-Line LCD Cooling Fan No [...]

Infort rend D-34 Notification: SAF-TE Device: 2-Line LCD SAF-TE_: Fa n( _) Back to On-Line Terminal [3fa2] SAF-TE (_) NOTICE: Fan Back On-Lin e Event Typ e " Alert " Warning ! Notification What Happens? Failed f an back to on- line sta te . What to Do? Press <ESC> to clear the me ssage. 2-Line LCD SAF-TE_: Temp(_) Back Non- Critica [...]

Event M essag es D-35 Controller Self Dia gnostics: 2-Line LCD CPU Temp Back Non-Critical Terminal [3 fa3] C P U <high/l ow t hresh old> Te mperatur e Back to N on-Crit ical Levels Event Typ e " Critical " Warning ! Notification What Happens? CPU operating te mperature back to no n-critical level. What to Do? Press <ESC> to cl[...]

Infort rend D-36 2-Line LCD Contlr FAN_ Back On-L ine (__) Terminal [3fa2] NOTICE: Controll er FAN_ Back On-Line ( _ RPM) Event Typ e " Alert " Warning ! Notification What Happens? Contr olle r fan oper a ting statu s back to norma l What to Do? Press <ESC> to clear the me ssage. I 2 C Device: 2-Line LCD Temp_ Back to Non-Critical T[...]

Event M essag es D-37 2-Line LCD Power Supply_ Back On-L ine Terminal [3fa1] NOTICE: Power Supply _ Back On-Line Event Typ e " Alert " Warning ! Notification What Happens? Power supply back online. What to Do? Press <ESC> to clear the me ssage. 2-Line LCD Power Supply_ is present Terminal [3fa1] NOTICE: Power Supply_ is present Even[...]

Infort rend D-38 SES Devic e: Alert: 2-Line LCD Power Supply_ Failure Detected Terminal [3 f 21] SES ( C _ I_) Power Supply_: Po wer S upply Failure Detected Event Typ e ! Alert " Warning " Notification What Happens? Power supply failure d e tected . What to Do? Check power module status a nd contact your supplier f or a replacement unit.[...]

Event M essag es D-39 General Periphe ral Devi ce: 2-Line LCD Power Supply Failure Detected Terminal [3 f 2 1] Peripheral Device ALERT: Power S upply Fa il ure Detected Event Typ e ! Alert " Warning " Notification What Happens? Power Supply Fa ilure Detected. What to Do? Check power module status a nd contact your supplier f or a replacem[...]

Index-1 A Access Mode: Read Only or Read/W rite 8-19 Active-to- Active Configuration 10- 11, 10-17 Active-to-Standby Configuration 10- 17 Adding a SCSI Channel’s ID: LCD 5-26 Adding a SCSI ID: term inal 7-26 Adding Drive to a Logical Drive 12-4 Adding New Drive 12-4 Advanced Firm ware Features B-2 Assign Spare Dr ives: term inal 7-7 Assigning a L[...]

Infort rend Index-2 Comm unic ations Channel: Fibre 8-7 Comm unic ations over drive loops 8-13 concurr ent rebuild in RAID (0+1) 1-11 Configuration on Dis k B-2 Configuration Procedure: LUN Filtering 8-20 Connecting Drives with Fibre Channel Dual Loop 8-10 Connection T y pe 8-10 Controller Comm unic ations Over Fibre Loops 8-12 Controller F ailover[...]

Index-3 failur e Disabling Pass word: LCD 5-35 Disabling Pass word: term inal 7-36 Disconnecting Suppor t: LCD 5-32 Disconnecting Suppor t: term inal 7-32 disk acces s delay time 9-20 Disk Array Param eters, Advanced conf ig. 9- 25, 9-27 Drive I/O tim eout B-3 Drive Identific ation B-2 Drive M otor Spi n-up B-3 Drive side redundant loop B-5 drive s[...]

Infort rend Index-4 L LCD Title Display Controller Nam e: LCD 5-37 LCD Title Display Control l er Name: term inal 7-37 local spar e drive, deleting 7-24 Local Spare: LCD 5-14 Local Spare: term inal 7-15 Logical Drive Assignm ents: term inal 7-7 Logical drive identification B- 1 Logical Drive Prefer ences: LCD 5-6 Logical Drive Prefer ences: term in[...]

Index-5 Mode-1 RAID Expansion B- 4 Mode-2 RAID Expansion B- 4 motor spin-up 9-18 Multi-T hreaded Operation B-3 mute beeper : LCD 5-34 Mute Beeper: term inal 7-34 N nam ing logical drive 5-18 naming, c ontroller 7-37, 7-39 navigation keys in term inal em ulation 3- 3, 3-11 NRAID, disk spanning 1-3 Number of T ags Reserved for each Host-LUN Connectio[...]

Infort rend Index-6 RAID (5+0) 1 -17 RAID 0 1 -4 RAID 1 1-4 RAID 3 1-5 RAID 5 1-5 RAID Expansion: Exam ple 12-12 RAID Expansion 12-1 RAID expansion with logical volum e 1-16 RAID Level: LCD 5-6 RAID Levels 1-2 2-4 B-1 RAID, advantages 1-1 RAID, definition of 1-2 RAID, level (0+1), disk stripin g with mirroring 1-4 RAID, level 0, disk striping 1-4 R[...]

Index-7 Disks: termina l Scanning New Drive: term inal 7-23 Scanning New Drive: LCD 5-23 SCSI channel ID, deleting 5-27 SCSI channel ID, setting 5-26 SCSI channel prim ary ID, setting 5-27 SCSI channel secondary ID, setting 5-28 SCSI channel term inator 5-28 SCSI channel term inator 7-28 SCSI channel, explained 9-11 SCSI Channel’s Status: term in[...]

Infort rend Index-8 tag count, m axim um 9-21 tag count, m axim um: LCD 5-32 Term inal 3-1, 3- 3, 3-11 Ter minal em ulation: term inology 6-2 Term inator , SCSI channel: LCD 5-28 Traf fic Distribution and Failover Proc ess 10-12 Trans fer c lock , max imum s y nchronous 5-31 Trans fer Rate Indic ator 6- 1 transf er speed setting: LCD 5-29 transf er[...]