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® MegaRAID ® SCSI 320-0 Zero-Channel RAID Controller HARD W ARE GUIDE September 20 02[...]

ii Cop yright © 2002 b y LSI Logic Corporation. A l l rights reserved. This doc ument co ntains prop rietary info rmation of LSI L ogic Corporati on. The inf or mation c ontained h erein is not to be us ed by or disclo sed to th ird par ties withou t the e xpress w ritten permission of an of ficer of LSI Logic Corpora tion. LSI Log ic produc ts ar[...]

iii Cop yright © 2002 b y LSI Logic Corporation. A l l rights reserved. FCC Regulatory Statement This de vice compli es with P art 15 of the FCC Rules . Operation is subjec t to the f ollowing two cond itions: (1) this de vice ma y not ca use harmful i nterf erence, and (2) this de vice must accept any inte rf erence rec eiv ed, inclu ding interf [...]

iv Cop yright © 2002 b y LSI Logic Corporation. A l l rights reserved.[...]

MegaRAID SCSI 320-0 Hardw are Guide v Cop yright © 2002 b y LSI Logic Corporation. A l l rights reserved. Preface This b ook is the pr imar y reference and Hardware Gu ide for the LSI Log ic MegaRAID ® SC SI 320-0 Con troller. It contains instr uctions f or instal ling the MegaRA ID contr oller and for con figur ing RAID arra ys. It also cont ain[...]

vi Preface Cop yright © 2002 b y LSI Logic Corporation. A l l rights reserved. · Chapter 6, Hardw are Installa tion , e x plains how to install the MegaRAID S CSI 320 -0 control ler . · Chapter 7, T rouble shooting , provides troubleshooting i nformatio n f or the M egaRAID SCSI 320- 0 contr oller . · Appen dix A, Audi ble Warn ing s , e xplain[...]

Pref ace vii Cop yright © 2002 b y LSI Logic Corporation. A l l rights reserved. Logical Drive Configuration Use this f o rm to reco rd the con figuration details for your logical dri v es. Mega RAID Driver V e r .: CPU T ype/Speed: Networ k Card: Syste m Memor y: Other d isk c ontrollers installe d: Other adapter cards Installe d: Description of [...]

viii Pr eface Cop yright © 2002 b y LSI Logic Corporation. A l l rights reserved. LD9 LD10 LD11 LD12 LD13 LD14 LD15 LD16 LD17 LD18 LD19 LD20 LD21 LD22 LD23 LD24 LD25 LD26 LD27 LD28 LD29 LD30 LD31 LD32 LD33 Logical Drive Configuration (Cont.) Logical Drive RAID Level Stripe Size Logical Dri ve Siz e Cache P olicy Read P olicy Write P olicy # of Phy[...]

Pref ace ix Cop yright © 2002 b y LSI Logic Corporation. A l l rights reserved. Physical Device Lay out Use this f o rm to reco rd the physical device layout. LD34 LD35 LD36 LD37 LD38 LD39 Logical Drive Configuration (Cont.) Logical Drive RAID Level Stripe Size Logical Dri ve Siz e Cache P olicy Read P olicy Write P olicy # of Physi cal Drives Phy[...]

xP r e f a c e Cop yright © 2002 b y LSI Logic Corporation. A l l rights reserved. Manu f actu rer/M ode l number Firmware le vel T arget ID Device type Logical driv e numbe r/Driv e numbe r Manu f actu rer/M ode l number Firmware le vel T arget ID Device type Logical driv e numbe r/Driv e numbe r Manu f actu rer/M ode l number Firmware le vel T a[...]

Pref ace xi Cop yright © 2002 b y LSI Logic Corporation. A l l rights reserved. Manu f actu rer/M ode l number Firmware le vel T arget ID Device type Logical driv e numbe r/Driv e numbe r Manu f actu rer/M ode l number Firmware le vel T arget ID Device type Logical driv e numbe r/Driv e numbe r Manu f actu rer/M ode l number Firmware le vel T arge[...]

xii Preface Cop yright © 2002 b y LSI Logic Corporation. A l l rights reserved. Manu f actu rer/M ode l number Firmware le vel T arget ID Device type Logical driv e numbe r/Driv e numbe r Manu f actu rer/M ode l number Firmware le vel T arget ID Device type Logical driv e numbe r/Driv e numbe r Manu f actu rer/M ode l number Firmware le vel Phys i[...]

MegaRAID SCSI 320-0 Ha rdware G uide xiii Cop yright © 2002 b y LSI Logic Corporation. A l l rights reserved. Contents Chapter 1 Overv iew 1. 1 F eatures 1-2 1.2 NVRAM and Flash ROM 1-2 1.3 Single-E nded and Di ff e rential SCS I Buses 1-2 1.4 Maximum Cable Length f or SCS I Standards 1-3 1.5 SCSI Bus W idths and Maximum Thr oughput 1-4 1.6 Docume[...]

xiv Co ntents Cop yright © 2002 b y LSI Logic Corporation. A l l rights reserved. 2.3.8 P ari ty 2-8 2.3. 9 Hot Sp ares 2-8 2.3.10 Hot Swapping 2-9 2.3.11 Disk Rebuild 2-9 2.3.12 Logical Drive States 2-10 2.3.13 SCSI Dr ive States 2 -10 2.3.14 Disk Ar ra y T ype s 2-11 2.3.15 Enclos ure Mana gement 2-11 Chapter 3 RAID Levels 3.1 Selecting a RAID L[...]

Contents xv Cop yright © 2002 b y LSI Logic Corporation. A l l rights reserved. 4.10.4 MegaRAID M anager 4-8 4.11 Co mpat ibilit y 4-9 4.11 .1 S erver M anageme nt 4-9 4.11.2 SCSI Device C ompatibil ity 4-9 4.11.3 Software 4-9 Chapter 5 Configuring Phys ical Drives, Arrays, and Logical Drives 5.1 Conf iguring SCSI Ph ysical D riv es 5-1 5.1. 1 Bas[...]

xvi Co ntents Cop yright © 2002 b y LSI Logic Corporation. A l l rights reserved. Chapter 7 T rouble shooting 7.1 General T r oubleshootin g 7-1 7.2 BIOS Boot E rror Mess ages 7-3 7.3 Other BIO S Error Mes sages 7-4 7.4 Other Potential Problems 7-5 Appendix A A udible W arnings Appendix B Glossa ry Index Customer Feedback[...]

MegaRAID SC SI 320-0 Hardw are Guide 1-1 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Chapter 1 Overvie w This chap ter provid es an overvi e w of th e MegaR AID ® SCSI 320-0 an d basic SC SI f eatu res. It contai ns the following sec tions: · Section 1.1, “Features” · Section 1.2, “N VRAM and Fl ash ROM” · Section [...]

1-2 Over vi ew Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 1.1 Features MegaRAID S CSI 320-0 f e atures inc lude: · Provides a hi gh perfor mance I/O migration pa th while pres er ving e xis tin g PCI- SCSI s oftw are. · P erforms SCSI data transfers up to 32 0 Mbytes/s. · P erforms synchro nous opera tion on a wi de low-v [...]

Maximu m Cab le Leng th fo r SCSI Standards 1-3 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 1.4 Maxim um C ab le Length f or SCSI Standar ds Ta b l e 1 . 1 li sts the m aximum SCS I cable lengt h and number of disk drives that you can us e, depending o n the SC SI speeds. T able 1 .1 Maxim um Cable Length f or SCSI Standard s [...]

1-4 Over vi ew Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 1.5 SCSI Bu s Widths and Maximum Throughput Ta b l e 1 . 2 list s the SCSI bus widths and maximum throughpu t, based on the SCSI s peeds. 1.6 Documentation The Mega RAID SCS I 320-0 d ocumentat ion se t includ es: · The Mega RAID SCSI 3 20-0 ZCR Hardware Guide · The [...]

Documenta tion 1-5 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 1.6.3 MegaRAI D Operating Syste m Driver Inst allation Guide This m anual provides de tailed in f o rm ation abou t install ing the Meg aRAID SCSI 320- 0 operating system drivers.[...]

1-6 Over vi ew Cop yright © 2002 by LSI Logic Corporation. All rights reserved.[...]

MegaRAID SC SI 320-0 Hardw are Guide 2-1 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Chapter 2 Intr oduction to RAID This chap ter introdu ces i mpor tan t RAID concep ts. It conta ins the f ollowin g sectio ns: · Section 2.1, “R AID Ben efits” · Section 2.2, “Mega RAID SC SI 320-0 – Host-Ba sed RAID Solu tion” · [...]

2-2 Intr oduct ion t o RAI D Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 2.1.2 I ncreased Rel iabili ty The ele ctromechan ical co mponen ts of a dis k subs ystem ope rate more slowly , requir e more power , and gene rate more noise an d vibration tha n electro nic devices. These f a ctors re duce the reliab ility of data s to[...]

RAID Overv iew 2-3 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 2.2.2 SC SI-to-SCSI External RAID A SCSI- to-SC SI extern al RAID produ ct puts the RA ID intell igenc e inside the RAI D chassi s and us es a plai n SCSI hos t adapter installe d in the network ser ver . The data transfer rate is limited to the bandwidth o f the S[...]

2-4 Intr oduct ion t o RAI D Cop yright © 2002 by LSI Logic Corporation. All rights reserved. · A combi nation of any two of the above conditions 2.3.3 Cons istency Check A cons istency c heck verifies the correc tness of redundant d ata in a RAID array . For e xampl e, in a system wi th distr ibuted par ity , c hecking consis tency me ans comput[...]

RAID Overv iew 2-5 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Figure 2.1 Disk Striping Disk st riping inv o lves par titi oning eac h disk dr ive’ s storag e space into strip es th at ca n v ar y in siz e fr om 2 to 128 Kb ytes. These s tripes are inter leav ed in a r epeated, s equential manner . The comb ined st orage spa[...]

2-6 Intr oduct ion t o RAI D Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 2.3.5.2 Stripe Si ze The str ipe si ze is the len gth of the inter leav ed data segm ents that MegaRAID S CSI 320 -0 writ es acro ss multiple dr ives. MegaRAID SC SI 320-0 s uppor ts str ipe sizes o f 2, 4, 8, 16, 3 2, 64, o r 128 Kbytes. 2.3.6 Disk Mirr [...]

RAID Overv iew 2-7 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 2.3.7 Disk Spanning Disk s panning allows multiple dis k drives to function like one big dri v e. Spann ing ov ercom es lack of disk space a nd simplifi es storage managemen t by combinin g ex istin g resour ces or ad ding rel ativ ely inexpensive resourc es. F or [...]

2-8 Intr oduct ion t o RAI D Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Ta b l e 2 . 1 des cr i bes how dis k sp annin g is used for RAID 10 an d RA ID 50 . Note: Spann ing two co ntiguo us RAID 0 l ogical d rives doe s not produce a new RAID lev e l or add fault t olerance. It doe s increa se the size of the lo gical volume [...]

RAID Overv iew 2-9 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. has a ca pacity clos est to and at least as great as that of the failed dr iv e to take the plac e of the failed dr ive. Note: Hot spa res are empl o yed only in ar ra ys with redund ancy— f o r e xam ple, RAID lev el s 1, 5, 10, a nd 50. A ho t spare connect ed [...]

2-10 Introduc tion to RAID Cop yright © 2002 by LSI Logic Corporation. All rights reserved. The Meg aRAID SCSI 32 0-0 rebuild rate can be configured bet ween 0% and 100%. A t 0%, the rebuild is only done if the system is not doing anything else. At 100%, the rebuild has a higher pr ior ity than any other system activit y . 2.3.12 Logical Drive Sta[...]

RAID Overv iew 2-11 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 2.3.14 Disk Arra y T ypes Ta b l e 2 . 4 des cribes th e RAID disk a rra y types. 2.3.15 Enclosur e Management Enclos ure mana gement is the intell igent m onitori ng of the di sk subsys tem by software an d/or hard ware. The disk subsystem can be par t of the hos[...]

2-12 Introduc tion to RAID Cop yright © 2002 by LSI Logic Corporation. All rights reserved.[...]

MegaRAID SC SI 320-0 Hardw are Guide 3-1 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Chapter 3 RAID Le vels This chap ter desc rib es each sup por t ed RAID lev el and th e factors to consid er when choo sing a RAID lev e l. It conta ins the follo wing sections: · Section 3.1, “Sel ecting a RAID Lev e l” · Section 3.2, ?[...]

3-2 RAI D Lev els Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 3.2 RAID 0 RAID 0 p rovides disk s trip ing acros s all dr ives in the RAID s ubsystem. RAID 0 d oes not provide any data redunda ncy , but does offer the bes t performa nce of any RAI D lev el. RAI D 0 breaks up data i nto sm aller bloc ks and then write s a block [...]

RAID 1 3-3 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Figure 3.1 RAID 0 Arr a y 3.3 RAID 1 In RAID 1, the MegaRA ID SCSI 320 -0 dupli cates all data f rom on e dr ive to a second dr ive. RAID 1 pro vid es com ple te dat a red und anc y , but at the cost of doubling the r equire d data storage c apacity . Figure 3.2 shows a RA[...]

3-4 RAI D Lev els Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Figure 3.2 RAID 1 Arr a y 3.4 RAID 5 RAID 5 includes disk str iping at t he b yte level and par ity . I n RAID 5, the pari ty inform ation is wr itten to se veral drives. RAID 5 is be st suited for networ ks that perform m any small I/O tra nsactio ns simulta neousl[...]

RAID 5 3-5 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Figure 3.3 sho ws a RAI D 5 arr ay w ith six disk dri ve s. Figure 3.3 RAID 5 Arr a y Uses Provid es high data th roughput, espec ially f or large files . Use RAID 5 f or transa cti on pro ce ss ing ap pl ica tio ns , because e ac h drive c an read and write indepen dently[...]

3-6 RAI D Lev els Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 3.5 RAID 10 RAID 10 is a com bination of RAID 0 a nd RAID 1. RAID 10 ha s mirror ed dri v es. RA ID 10 brea ks up da ta into sm aller blocks, and then st ripes the bloc ks of data t o each RAID 1 RAID set. Each RAID 1 RAID set then duplica tes it s data to its other[...]

RAID 50 3-7 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Figure 3.4 RAID 10 Ar ray 3.6 RAID 50 RAID 50 provid es the features of both RAID 0 and RAID 5, including bo th pari ty and di sk str iping across mul tiple dr ives. RAID 50 is best implem ented on t wo RAID 5 disk arrays with data str iped ac ross bo th disk arrays. RAID[...]

3-8 RAI D Lev els Cop yright © 2002 by LSI Logic Corporation. All rights reserved. RAID 50 can sus tain one to f ou r dr ive f ai lures w hile main taining d ata integr ity , if each failed disk is in a diff erent RA ID 5 array . Figure 3.5 shows a RAID 5 0 array with six disk dr ives. Figure 3.5 RAID 50 Ar ray Uses W orks best w hen us ed wi th d[...]

MegaRAID SC SI 320-0 Hardw are Guide 4-1 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Chapter 4 Feature s This chap ter explains the features of th e MegaR AID SCSI 32 0-0. It conta ins the following secti ons: · Section 4.1, “SMA RT T ech nology” · Section 4.2, “C onfiguration on Disk” · Section 4.3, “C onfigurati[...]

4-2 F eatures Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 4.2 Configur ation on Disk Config uration on Disk (dri v e roami ng) sav es conf iguration i nf or matio n both in n onv ol atile random access m emor y (N VRAM) on th e MegaRAID SCSI 320- 0, and on th e disk d rives control led by the MegaR AID SCSI 320-0. If t he Mega[...]

Array P erfor manc e Featur es 4-3 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 4.4 Arra y P erf ormance Features Ta b l e 4 . 2 lists the array performan ce f eatur es. Online c apacity ex pansi on Y es Hot spa re support Y es Flas hable f ir mwar e Y es Hot s wap de vices supp or ted Y es Non-d isk devices s uppor ted Y es Mi[...]

4-4 F eatures Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 4.5 RAID Management Features Ta b l e 4 . 3 lists the RAID ma nagement features. 4.6 F ault T olerance Features Ta b l e 4 . 4 lists t he f ault to lera nce f eatu res . T able 4.3 RAID Management Features Specification Fea ture Suppor t f or SNMP Y es P e rforma nce Mo[...]

Softw are Utilitie s 4-5 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 4.7 Software Ut ilities Ta b l e 4 . 5 list s the so ftware utilit y features. 4.8 Operating System Software Driver s MegaRAID S CSI 320-1 includes a DOS software c onfigurati on utility , an d dri v ers for: · Windows N T 4.0 · Windows 2 000 · Wind ows .N[...]

4-6 F eatures Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 4.9 MegaRAID SCSI 320-0 Specifi cations Ta b l e 4 . 6 lists the specifi cations for the SCS I 320-0. 4.9.1 PC I Bridge/ CPU MegaRAID S CSI 320-0 uses the Inte l i960RM P CI bri dge with an embedded 80 960 JX RISC processo r r unning at 66 MHz. The RM br idge handles da[...]

MegaRAID SCSI 320-0 Spec ifications 4-7 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 4.9.2 Cac he Memory MegaRAID S CSI 320-0 suppor ts 32 to 128 Mbytes of ECC S DRAM DIMM on-b oard cache memor y . MegaRA ID suppor ts write- through or writ e-back cachin g, which c an be sel ected for each l ogical d rive. T o improve performa [...]

4-8 F eatures Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 4.10 RAID Management RAID ma nagement i s provided by software utili ties that m anage and configur e the RAID sy stem and M egaRAID SCSI 320-0, c reate an d manage m ultiple disk arrays , cont r ol and monitor multiple RA ID ser v ers, provide err or statis tics l oggi[...]

Compa tibility 4 -9 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 4.11 Compatibil ity MegaRAID S CSI 320 -0 compa tibility issues i nclude: · Serv er manag ement · SCSI d e vice compa tibil ity · Software com patibility 4.11.1 Server Manage ment As a si mple networ k mana gement pr otocol (SNM P) agent , MegaRAID SCSI 320- 0 [...]

4-10 F eatures Cop yright © 2002 by LSI Logic Corporation. All rights reserved.[...]

MegaRAID SC SI 320-0 Hardw are Guide 5-1 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Chapter 5 Configuring Ph ysical Drives, Arra ys, and Logic al Drives This chap ter explains how to configu re SCS I physical dri ves , arrays , and logical dri v es. It co ntains the f o llowing s ections : · Section 5.1, “C onfiguri ng SCS[...]

5-2 Config uring Ph ysical D rives , Arra ys, an d Logical Drive s Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Note: Be su re to ba ck up y our da ta regula rly , ev en whe n using RAID . 5.1.2 Current Physical Device Configuration Use Ta b l e 5 . 1 to descr ibe th e current config uration for y our physical de vices. T able [...]

Configuring SCSI Ph ysical Driv es 5-3 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 5.1.3 Logical Drive Configuration Use Ta b l e 5 . 2 to record t he con figuration for your logical drives. T able 5.2 Logical D rive Configuration Logical Drive RAID Level Stripe Size Logical Dri ve Siz e Cache P olicy Read P olicy Write P olic[...]

5-4 Config uring Ph ysical D rives , Arra ys, an d Logical Drive s Cop yright © 2002 by LSI Logic Corporation. All rights reserved. LD22 LD23 LD24 LD25 LD26 LD27 LD28 LD29 LD30 LD31 LD32 LD33 LD34 LD35 LD36 LD37 LD38 LD39 T able 5.2 Logical Drive Configuration (Cont.) Logical Drive RAID Level Stripe Size Logical Dri ve Siz e Cache P olicy Read P o[...]

Configuring SCSI Ph ysical Driv es 5-5 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 5.1.4 Ph ysical Device La yout Use Ta b l e 5 . 3 to reco rd the ph ysical d e vice la y out. T able 5.3 Physical Device Lay out Channel 0 Channel 1 T arget ID Device type Logical driv e numbe r/Driv e numbe r Manu f actu rer/M ode l number Firm[...]

5-6 Config uring Ph ysical D rives , Arra ys, an d Logical Drive s Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Manu f actu rer/M ode l number Firmware le vel T arget ID Device type Logical driv e numbe r/Driv e numbe r Manu f actu rer/M ode l number Firmware le vel T arget ID Device type Logical driv e numbe r/Driv e numbe r M[...]

Configuring SCSI Ph ysical Driv es 5-7 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Manu f actu rer/M ode l number Firmware le vel T arget ID Device type Logical driv e numbe r/Driv e numbe r Manu f actu rer/M ode l number Firmware le vel T arget ID Device type Logical driv e numbe r/Driv e numbe r Manu f actu rer/M ode l numbe[...]

5-8 Config uring Ph ysical D rives , Arra ys, an d Logical Drive s Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 5.2 Configur ing Arra ys Y ou organize the physical disk dri ves in arra y s after they are connected to the SC SI chann els cont rolled by the LSI Log ic SCSI c hip on the motherbo ard, and afte r the y are for matte[...]

Crea ting Logic al Dr ives 5-9 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Y ou can designat e dri v es as h ot spares u sing the M egaRAID BI OS Config uration Utility , the MegaRA ID Manager, or P ower Console Pl us. 5.3 Creating Logical Dri ves Logical drives are ar ra ys or spanned arra ys that are presen ted to the operat[...]

5-10 Config uring Ph ysical Driv es, Arr a ys, and Logic al Driv es Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 5.3.1.2 Maximizing Drive Availability Y ou can maximize the availability o f data on the physical disk dr ive in the logical array b y maxi mizing t he lev el of fault tolerance. Ta b l e 5 . 5 descr ibes the l e vel[...]

Crea ting Logic al Dr ives 5-11 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 5.3.2 Assigning RAID Levels Only on e RAID lev el can be as signed to each lo gical dr ive. Ta b l e 5 . 7 shows the dr ives requir ed per RAID l e vel. Note: The MegaRAID SCSI 320-0 c ontroller supports one or two SCSI channe ls, w ith up to 15 SCSI d[...]

5-12 Config uring Ph ysical Driv es, Arr a ys, and Logic al Driv es Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 5.4 Configuring Logi cal Drives After you hav e instal led the Me gaRAID SC SI 320-0 c ontroller in t he ser ver and have attached a ll physical disk d rives, perform th e f ollowing actions to prepare a RAID array: [...]

Planning the Arra y Configura tion 5-13 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. pri nt ser vers? Does this disk array suppor t any software system that must be av aila ble 24 hours per da y? Wi ll the infor mation s tored in this disk array contai n large a udio or vid eo files that must be available on demand? W ill this [...]

5-14 Config uring Ph ysical Driv es, Arr a ys, and Logic al Driv es Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Use Ta b l e 5 . 9 to plan the arra y configu ration. T able 5.9 Array Configuration Planner # of Drives P ossible RAID Levels Relative P er forma nce Faul t To l e r a n c e Effective Capacity 1 None Ex cellent No 1[...]

Planning the Arra y Configura tion 5-15 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 8 RAID 0 Excellent No 100% 8 RAID 5 Good Y es 87% 8 RAID 10 Good Y es 50% 8 RAID 50 Good Y es 75% T able 5.9 Array Configuration P lanner (Cont.) # of Drives P ossible RAID Levels Relative P er forma nce Faul t To l e r a n c e Effective Capaci[...]

5-16 Config uring Ph ysical Driv es, Arr a ys, and Logic al Driv es Cop yright © 2002 by LSI Logic Corporation. All rights reserved.[...]

MegaRAID SC SI 320-0 Hardw are Guide 6-1 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Chapter 6 Har d ware In stalla tion This ch apter e xplains how to install the MegaRA ID SCSI 320-0 c ontroller . It contain s the following se ctions: · Section 6.1, “Har dware Requireme nts” · Section 6.2, “Ins tallation Steps” · [...]

6-2 Hardw are Installation Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 6.2 Installation Steps The Mega RAID SC SI 320-0 pr ovides e xtensi v e custo mization options. If you need only basic Me gaRAID S CSI 320-0 features a nd your compu ter does not use other ad apter car ds with re source settings that may confli ct with Mega[...]

Inst alla tion Step s 6-3 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. · The Dr iver and Docum entation CD , which co ntains these items: – The M egaRAID Con figuration S oftware Guide – The M egaRAID Operating Sy stem Dr iver Installa tion Gu ide – The M egaRAID SCSI 320- 0 ZCR Har dware Guide – The sof tware license [...]

6-4 Hardw are Installation Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Figure 6.1 MegaRAID SCSI 320-0 Contr o ller Lay out 6.2.3.1 J2 Dir ty Cache LE D J2 is a t wo-pin heade r f or t he dir ty c ache LED . This can be connec ted to an LED o n the com puter enc losure. The L ED will b e lit when data in the ca che has n ot yet[...]

Inst alla tion Step s 6-5 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 6.2.3.4 J8 Connect or for Optional B BU Daughter Card J8 is 4 0-pin c onnector that is u sed to mo unt an opti onal batte ry backup unit that i s on a daug htercard. 6.2. 4 Step 4: Install Me gaRAID SC SI 320-0 Select t he ZCR 3.3 V or 5 V PC I slot and al i[...]

6-6 Hardw are Installation Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Figure 6.3 Installing the MegaRAID SCSI 320-0 Contr oller 6.2. 5 Step 5: P ower Up Replace t he compute r cover and reconnec t the AC power cords. T u rn power on to the hos t compute r . Set up the power supp lies so that the SCSI devices a re powered up a[...]

Inst alla tion Step s 6-7 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. The fir mware takes sev eral second s to init ialize. During thi s time the adapter wi ll scan th e SCSI cha nnel(s ). When rea dy , t he following appears : Host Ada pter-1 Firmwar e Version x.xx DRAM Size 16 MB 0 Logica l Drives found on th e Host Ad apter[...]

6-8 Hardw are Installation Cop yright © 2002 by LSI Logic Corporation. All rights reserved. EMM386 .EXE is lo aded. If you do not d o this, you cannot access the boot dr ive after EM M386 i s loaded. 6.3 Sum mary This cha pter discus sed hardware in stallation. Conf igure the RAID sy stem using s oftware config uration uti lities. See t he Mega RA[...]

MegaRAID SC SI 320-0 Hardw are Guide 7-1 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Chapter 7 T r oub leshooting This chap ter provides troubleshooti ng inform ation for the MegaRA ID SCSI 320- 0 contr oller . It c ontains the f ollowing s ection s: · Section 7.1, “Ge neral T roublesh ooting” · Section 7.2, “BIO S Boo[...]

7-2 T roub leshooting Cop yright © 2002 by LSI Logic Corporation. All rights reserved. One of the hard drives in the arra y fa ils often. Chec k the driv e error counts using P o w er Cons ole Plus . See the MegaRAID Co nfiguration Softwar e Guide f or more inf or mation . Form at th e dr ive. Reb uild the d rive If the driv e contin ues to fa il,[...]

BIOS Boot Error Message s 7-3 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 7.2 BIOS Boo t Error M essag es Ta b l e 7 . 2 des cribe s err or messag es that can di splay when you boot the system , and sugge sted sol utions. T able 7.2 BIOS Boot E rror Messages Messa ge Pro blem Suggested Solu tion Adap ter BIOS Disabled . No Log[...]

7-4 T roub leshooting Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 7.3 Other BIOS Er r or Messages Ta b l e 7 . 3 des cribes o ther BIO S error mes sages, their me aning, and sugge sted sol utions. 1 Logica l Drive Degr aded A lo gical driv e signe d on in a d egraded sta te. Mak e sure all p hysica l drive s are properly conne[...]

Other P ot enti al Proble ms 7-5 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. 7.4 Other P otential Prob lems Ta b l e 7 . 4 des cribes other po tential problems. Unresolved configur ation mismat ch betw een disks and NVRAM o n the adapte r The config uration sto red in the MegaRA ID NVRAM do es not match the configur ation stor[...]

7-6 T roub leshooting Cop yright © 2002 by LSI Logic Corporation. All rights reserved. MegaR AID pow er requ irem ent s The ma ximum M egaRAID SCSI 320-0 po wer req uirements are 15 W at 5 V and 3 A. SCSI bus requ irem ent s The ANSI sp ecifica tion dicta tes the fol lowi ng: · The maxi mum signal p ath length b etwee n terminators i s 3 meters w[...]

MegaRAID SC SI 320-0 Hardw are Guide A-1 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Appendix A A udib le W arnings The Mega RAID SCSI 320-0 R AID controll er has a n onboard tone generator that indicate s ev ents and erro rs. Note: Thi s is av ailable only if the opti onal ser ies 502 Batt ery Backup Unit ( BBU) is insta lled[...]

A-2 Audible Warn ings Cop yright © 2002 by LSI Logic Corporation. All rights reserved.[...]

MegaRAID SC SI 320-0 Hardw are Guide B-1 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Appendix B Glossa ry Array A grouping of indivi dual disk drives that com bines the storag e space on the disk dri v es into a single segmen t of conti guous sto rage spac e. MegaRAID c an grou p disk d r ives on one or more SCS I chan nels in[...]

B-2 Glossary Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Channel An electr ical path for the transfer of data and control infor mation betwe en a disk a nd a disk controlle r . Consistency Check An examination o f the di sk system to dete rm ine whether all co nditions are valid f or the s pecifie d configuratio n (such as par[...]

B-3 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. provides h igh I/O pe rf or mance a t low cost, but provides lowers data reliabi lity than any of its me mber disk s. Disk Subsystem A c ollection of disks and the hardware th at connec ts them to o ne or more host compu ters. The hardware ca n include an intellige nt control ler[...]

B-4 Glossary Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Host Computer Any compute r to which di sks ar e directly attached. M ainframes, ser vers, works tations, and pe rsonal computer s can al l be cons idered h ost compu ters. Hot Spare A st and -by disk dr ive ready for use if a dr ive in an array f ails. A hot spar e does[...]

B-5 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Mbyte (Megabyte) An abbreviation f or 1,000,0 00 (10 to the sixth power) bytes. One Mbyte equals 1,000 Kbytes (k ilobytes). Multi-threaded Having mul tiple concurre nt or pse udo-con current ex ecution s equen ces. Used to des crib e proces ses in computer systems. Mult i-threa d[...]

B-6 Glossary Cop yright © 2002 by LSI Logic Corporation. All rights reserved. RAID Redundant Array of Independe nt Disks. A da ta storage method in which data, alon g with par ity infor mation, i s distr ibuted among two or m ore hard disks (called an array ) to improve perf or mance and reliabi lity . A RAID disk s ubsystem i mproves I/O performa[...]

B-7 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Redundanc y The provi sion of multipl e intercha ngeable compon ents to per f or m a single f unction to cope w ith f ail ures or err ors. Redundan cy nor mally applies to hardware; d isk mirror ing is a common f or m of ha rdware redundan cy . Replacement Disk A di sk a v aila b[...]

B-8 Glossary Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Servic e Pro vider The Ser vice Provider (SP) is a program that resides in the des ktop system or ser ver and is respon sible f or all D MI acti vities. This l a yer collec ts manage ment in f o rm ation f rom produc ts (wheth er system hardware, peri pherals, or soft wa[...]

B-9 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Ultra320 A sub set of U ltra3 SCSI t hat allows a maxi mum through put of 320 Mbytes/s, which is twice as f as t as Wide Ul tra2 SCSI. Ultra3 20 SCSI provides 3 20 Mbytes/s on a 16-bit connecti on. Vir tual Siz ing Fle xRAID vir tual s izing is used to cr eate a lo gical dr ive u[...]

B-10 Glos sar y Cop yright © 2002 by LSI Logic Corporation. All rights reserved.[...]

MegaRAID SC SI 320-0 Hardw are Guide IX-1 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Inde x A Array B-1 Array Con figuration Pla nner 5-14 Array ma nagemen t softwar e B-1 Array pe rformance features 4-3 Array spann ing B-1 Assigning RAID levels 5-11 Asynchronou s operations B-1 Audibl e Warning s A-1 Automat ic failed dr ive[...]

IX-2 Inde x Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Install Drivers 6-7 Installation st eps Custom 6-2 J Jumpers Setting 6-3 L Linux Red Hat 4-5 Logical d isk B-4 Logical d rive 2-3 , B-4 Logical d rive states 2-10 M Mappin g B-4 MB B-5 MegaRAI D BIOS 4-7 MegaRAID BIOS Configuration Utility 4-8 MegaRAI D Manager 4-8 MegaRA[...]

Inde x IX-3 Cop yright © 2002 by LSI Logic Corporation. All rights reserved. Str iping B- 8 T Technical Sup port 1-vi Termi nator B-8 Troubl eshooti ng 7-1 U Ultra320 and Wide SCS I 4-1 Ultra3-SCSI (320M) B- 9 Unpack 6-2 V Virtual sizing B-9 W WebBIOS Configuration Utility 4-8 Wide SCSI B-9 Windows .NET 6-7 Window s 2000 6-7 Windows NT 4-5 , 6-7 W[...]

IX-4 Inde x Cop yright © 2002 by LSI Logic Corporation. All rights reserved.[...]

MegaRAID SC SI 320-0 Hardw are Guide 1-1 Cop yright © 2002 b y LSI Logic Corporation. A l l rights reserved. Customer Fee dbac k W e would appre ciate your f e edback on this docum ent. Please cop y the f ollowing pa ge, add your comm ents, and fax it to us at the number shown. If approp riat e, please also f ax cop ies of any m arked-up pa ges fr[...]

1-2 Custo mer F eedbac k Cop yright © 2002 b y LSI Logic Corporation. A l l rights reserved. Read er’ s Com ment s F ax your comment s to: LSI Logic Cor poratio n T echni cal Publica tions M/S E- 198 F ax: 408.433.43 33 Please te ll us how y ou rate this doc ument: MegaRA ID SCSI 320- 0 Hard- ware Gu ide . Place a c heck mar k in the approp riat[...]