EMC FC4500 manuel d'utilisation

EMC Enterpr ise Storage EMC Corporation 171 South Street, Hopkinton, MA 01748-9103 Co rpo r at e H ea dq ua rte rs : (508) 435-1000, (800 ) 4 24-EMC2 Fax : (508) 435-5374 Ser vice : (800) SV C-4EMC EMC Fibre Channel Storage Systems Models FC4500, FC53 00, a nd FC5700 CONFIGURATION PLANNING GUIDE P/N 0140030 39-02[...]

EMC Fibre C hannel Storage Systems Configuration Planning G uide ii Copyright © EMC Corporation 20 00, 2001. A ll rights reserv ed. Printe d May 2001 No part of this pub lication m ay be repr oduced or di stributed in any for m or by any me ans, or store d in a database or retriev al system , without the prio r written consent of EMC Corpora tion.[...]

EMC Fibre Channel Storage Systems Confi guration Planning Guid e iii Preface ........................ ........... ................. ........... ................. ................. ........... ................. . x i Chapter 1 About Fibr e Channel St orage Sys tems and Netw orks (SANs) Introducing EMC Fibr e Channel Storage Systems..................[...]

EMC Fibre C hannel Storage Systems Configur ation Planni ng Guide iv Contents RAID 1 Mirr ored Pair ................ ................. ........... ................. .. 2-7 RAID 0 Group (Nonred undant Array) ......... ............ ............. 2-8 RAID 1/0 Gr oup (Mirrored RAID 0 Group) ................. ........ 2-8 Individual Disk Unit ..........[...]

v EMC Fibre Ch annel Storage Systems Conf iguration Plan ning Guide Conte nts Hardwa re fo r Unshar ed Storage ............... ........... ................. ......... 5-6 Types of Storage System fo r Unshared Storage .... ............... 5-6 Disks............... ................. ................. ........... ................. ........... .... 5-8 [...]

EMC Fibre C hannel Storage Systems Configur ation Planni ng Guide vi Contents[...]

EMC Fibre C hannel Storage-System C onf iguration Planning Guid e vii 1-1 Storage System Models .... ................. ................. ........... ................. .............. 1- 2 1-2 Nodes - Initiator and Target ............ ................. ................. ........... .............. 1- 3 1-3 Switch and Hub Topologies Compared ..........[...]

viii EMC Fibre C hannel Storage-System Co nf igur ation Pla nning Guide Figures 5-8 Storage System with Two SPs Connected to the Same Server ............. 5-10 5-9 Storage System with Two SPs Connected to Different Servers ............ 5-10 5-10 Comparison Between Optical and Copper Cabling ......... ................. ..... 5-21 5-11 Cable Identifi[...]

EMC Fibre C hannel Storage-System C onf iguration Planning Guid e ix 2-1 Performan ce, Availability, and Cost of RAID Ty pes (Individual Unit = 1.0 ) ...................... ................. ................. ........... ............ 2-13 3-1 Cache Recommendations for Different RAID Types ................ ........... . 3-16 4-1 Cache Recommendation[...]

x EMC Fibre C hannel Storage-System Co nf igur ation Pla nning Guide Ta b l e s[...]

EMC Fibre C hannel Storage-System Configuration Planning Guidexi xi Preface This planning guide pr ovides an overview of Fibr e Channel disk-array storage-system mode ls and offers essential back gr ound informatio n and worksheets to help yo u with the installation and conf igur ation p lanni ng. Please read this guide • if you are considering p[...]

xii EMC Fibre C hannel Storage-System Co nf igur ation Pla nning Guide Preface Organizatio n of the Manual Chapter 1 Provides backgr ound information on the Fibre Channel protocols an d explains the ma jor installa tion types. Chapter 2 Describes the RAID Gr oups and the dif ferent ways they store data. Chapter 3 Describes installations for shar ed[...]

About Fibre Cha nnel Stor age Systems a nd Netw ork s (SANs) 1-1 1 This chapter introduces Fibre Channel dis k-array storage systems and storage ar ea networks (SANs ). Major sections ar e • Introducing EMC Fibr e Channel Storage System s .................... .... 1-2 • Fibre Channel Backgr ound ......... ................. ........... .........[...]

1 1-2 EMC Fibre C hannel Storage-System Co nf igur ation Pla nning About Fibre Channel Storage Systems and Networks (S ANs) Intr oducing EMC Fibre Channe l Storage Systems EMC Fibre Channel dis k-array storage syst ems provide terabytes of disk storage capacit y , high transfer rates, flexible configurations , and high ly a vaila ble da ta at low c[...]

1 Fibre Channel B ac kground 1-3 About Fibre Channel S torage Systems and Networks (SANs) Fibre Channel Ba ckgr ound Fibre Channel is a high-performance serial protocol that allows transmission of both network and I/O cha nnel data. It is a low level protocol, in dependent of data types, and supports such formats as SCSI and IP . The Fibre Channel [...]

1 1-4 EMC Fibre C hannel Storage-System Co nf igur ation Pla nning About Fibre Channel Storage Systems and Networks (S ANs) Fibre Channel Stor age Components A Fibr e Channel storage system has thr ee main components: • Server component (host- bus a dapter driver package with adapter and sof tware) • Interconnect component s ( cables based o n [...]

1 Fibre Cha nnel Stor age C omponents 1-5 About Fibre Channel S torage Systems and Networks (SANs) The maximum length of copper cable is 30 meters (99 feet) between nodes or hubs. The maximum length of optical cable between server and hub or storage system is mu ch greater , depending on the cable type. For example, 62. 5-micron mu ltimode cable ca[...]

1 1-6 EMC Fibre C hannel Storage-System Co nf igur ation Pla nning About Fibre Channel Storage Systems and Networks (S ANs) Y ou can cascade switches (connect one sw itch port to another swit ch ) for additional port connections. Figure 1-3 Switch and Hub T op ologies C om pared Switch Zoning Switch zo ning define s paths between connected no des. [...]

1 Fibre Cha nnel Stor age C omponents 1-7 About Fibre Channel S torage Systems and Networks (SANs) Figure 1-4 A Switch Zone If you d o not def ine a zon e in a switch , all ada pter port s connec ted to the switch can communicate with a ll SP ports conn ec t ed to the switch. However , access to an SP d o es not necessarily provide access to the SP[...]

1 1-8 EMC Fibre C hannel Storage-System Co nf iguration Plannin g About Fibre Channel Storage Systems and Networks (S ANs) If your servers and storage sys tems will be far apart, you can place the switches closer to the servers or the storage systems, as conv enie nt. A switch is technicall y a r e peater , not a no d e, in a Fibre Channel loop. Ho[...]

1 Fibre Cha nnel Stor age C omponents 1-9 About Fibre Channel S torage Systems and Networks (SANs) Storag e Compon ent (Storage Systems , Storag e Pr ocesso rs (S Ps), and Other Hardware) EMC disk-a r ray st orage systems, with th eir storage processors, power supplies, and cooling hardwar e form the storage component of a Fibre Channel sy stem. Th[...]

1 1-10 EMC Fibre C hannel Storage-System Co nf iguration Plannin g About Fibre Channel Storage Systems and Networks (S ANs) Types of Storage System Installations Y ou ca n use a storage syste ms in any of severa l types of installati on: • Unshared di rect with one server is the simplest and least costly; • Shared-or -clustered direct lets two [...]

1 About Switched S hared Storage and SANs (Storage Area Ne tw or ks) 1-11 About Fibre Channel S torage Systems and Networks (SANs) About Switched Shar ed Storage and SANs (Storage Area Netw or ks) This section explains the features that let multiple servers share disk-array storage systems on a SAN ( stora ge ar ea netwo rk). A SAN is a collection [...]

1 1-12 EMC Fibre C hannel Storage-System Co nf iguration Plannin g About Fibre Channel Storage Systems and Networks (S ANs) However , switch zoni n g cannot selectively control data access to LUNs in a storage sys tem, because each SP appears as a single Fibre Channel device to the switch. So switch zoning can pr event or allow communicatio n with [...]

1 About Switched S hared Storage and SANs (Storage Area Ne tw or ks) 1-13 About Fibre Channel S torage Systems and Networks (SANs) Figur e 1-10 Sample SA N Configuration Access Control with Shar ed Storage Access control permits or restricts a server ’ s access to shared storage. There are two kinds of acces s control: • Configuration access co[...]

1 1-14 EMC Fibre C hannel Storage-System Co nf iguration Plannin g About Fibre Channel Storage Systems and Networks (S ANs) The following figure shows both da ta access cont r ol ( Storage Groups) and configuration access contr o l. E ach server has exclusive read a nd write access to its designated Storage Gr oup. Of the four servers connected to [...]

1 About Switched S hared Storage and SANs (Storage Area Ne tw or ks) 1-15 About Fibre Channel S torage Systems and Networks (SANs) Storag e System Hardw are f or Sh ared Stora ge For shared storage, you need a Disk-arra y Processor Enclosure (DP E) storage system. A DPE is a 10-slot enclosur e with har dware RAID fea tures pr ovided by one or two s[...]

1 1-16 EMC Fibre C hannel Storage-System Co nf iguration Plannin g About Fibre Channel Storage Systems and Networks (S ANs) About Unshared Sto rage Unshared storage sy stems are less costly a nd less complex tha n shared storage systems. They of fer many shar ed storage system features ; for example, you can use multiple unshar ed storage systems w[...]

1 About Uns hared Storage 1-17 About Fibre Channel S torage Systems and Networks (SANs) Figur e 1-13 Storage Sy stem Hardw are f or Unshared Storage What Nex t? For informati o n about RAID types a nd RAID tradeof fs, continue to the next chapter . T o plan LUNs and file systems for shared st orage, skip to Chapter 3; or for un shared s torag e, Ch[...]

1 1-18 EMC Fibre C hannel Storage-System Co nf iguration Plannin g About Fibre Channel Storage Systems and Networks (S ANs)[...]

RAID T ypes and Tradeof fs 2-1 2 This chapter explains RAID types you can choose for your storage system LUNs. If you alr eady know about RAID types and know which ones y ou want, you can skip this background informa tion and skip to Ch apter 5. T opics ar e • Introducing RAID ............ ............................. ...........................[...]

2 2-2 EMC Fibre C hannel Storage-System Co nf iguration Plannin g RAID Types and Tradeof fs Intro ducing RAID The storage system uses RAID (r edundant array of independent disks) techno logy . RAID technolo gy gr oups separate disk s into one logical unit (LU N) to improve r eli ability and/or performan ce . The storage system supports five RA ID l[...]

2 Introducing R AID 2-3 RAID Types an d T radeoffs RAID Groups and LUNs Some RAID typ es let you create multiple LUNs on one RAID Group. Y ou can then allot each LUN to a differ en t user , server , or application. For example, a five-disk R A ID 5 Group that us e s 36-Gby te disks off ers 144 Gbytes of space. Y ou could bind three LUNs, s ay with [...]

2 2-4 EMC Fibre C hannel Storage-System Co nf iguration Plannin g RAID Types and Tradeof fs RAID T ype s Y ou can choose from the following RAID types: RAID 5, R AID 3, RAID 1, RAID 0, RAID 1/0, individual disk unit, and hot spare. RAID 5 Group (Individual Access Array) A RAID 5 Group usually co nsists of five disks (but can have three to sixteen).[...]

2 RAID T ypes 2-5 RAID Types an d T radeoffs Figure 2-2 RAID 5 Group RAID 5 Groups o ffer excellent r ead performance and good write performance. W rite performance benefits greatly fr om storage-system caching. RAID 3 Group (P arallel Access Array) A R AID 3 Group c onsis ts of five or mo re disk s. Th e hard ware al ways reads from or w rites to [...]

2 2-6 EMC Fibre C hannel Storage-System Co nf iguration Plannin g RAID Types and Tradeof fs The following figur e shows user and parity data with a data block size of 2 Kbytes in a RAID 3 G roup. Notice that the byte addr esses proceed from the first disk to the s econd, third, and fourth, then th e first, a nd so on. Figure 2-3 RAID 3 Group RAID 3[...]

2 RAID T ypes 2-7 RAID Types an d T radeoffs For each write to a RAID 3 Gr oup , th e sto rage system 1. Calculates the parity data. 2. W rites the new user and parity data. RAID 1 Mirr ored P air A RAID 1 Gr oup consists of two disks that ar e m irr ored automa tically by the storage-system hardware. RAID 1 hardware mirroring within the stor a ge [...]

2 2-8 EMC Fibre C hannel Storage-System Co nf iguration Plannin g RAID Types and Tradeof fs RAID 0 Group (Non redundant A rray) A RAID 0 Gr oup consists of three to a maximum of sixteen disks. A RAID 0 Group uses d isk striping , in wh ich the hardwar e writes to or reads from multiple disks simultaneously . In a full-fibre storage system, you can [...]

2 RAID T ypes 2-9 RAID Types an d T radeoffs Figure 2-5 RAID 1/0 Group (Mirrored RAID 0 Gr oup) A RAID 1/0 Group can s urvive the failure of multiple d isks, providing that one disk in each ima ge pair survives. Indi vid ual Di sk Unit An individual di sk unit is a di sk bound to be independen t of any other disk in the cabinet. An individual unit [...]

2 2-10 EMC Fibre C hannel Storage-System Co nf iguration Plannin g RAID Types and Tradeof fs replace th e failed disk, the SP copies the data from the former hot spar e onto the replacem ent disk. When the copy is done, the disk group consists of disks in the orig inal slots, and the SP autom atically fr ees the hot spare to serve as a hot spar e a[...]

2 RAID T ypes 2-11 RAID Types an d T radeoffs Figure 2-6 How a Hot Spare W orks Hot spare 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 1. RAID 5 group consists of disk modules 0-4; RAID 1 mirrored pair is modules 5 and 6; hot spare is module 9. 2. Disk module 3 fails. 3. RAID 5 group becomes modules 0, 1, 2, 9, and 4; now no hot spare is avail[...]

2 2-12 EMC Fibre C hannel Storage-System Co nf iguration Plannin g RAID Types and Tradeof fs RAID Bene fits and T radeof fs This section r eviews RAID types and explains their benefits and tradeoffs. Y ou can create seven types of LUN: • RAID 5 G r o up ( individu al access array) • RAID 3 G r o up ( parallel a ccess array) • RAID 1 mirr ored[...]

2 RAID Benef its and Tr adeof fs 2-13 RAID Types an d T radeoffs Ta b l e 2 - 1 P erformance, A vail ability , and Cost of RAID Types ( Individual Unit = 1.0) Pe rfo r ma n ce RAID 5, with individual access, provides high r ead throughput for small requests (blo cks of 2 to 8 Kbytes) by all o wing simultaneous reads from ea ch disk in the group. RA[...]

2 2-14 EMC Fibre C hannel Storage-System Co nf iguration Plannin g RAID Types and Tradeof fs W e do not recommend using RAID 3 in the same storage-system chassis with RAID 5 or RAI D 1/0. A RAID 1 mirrored pair has its disks locked in synchronization , but the SP can read data from the disk whose read/write heads a r e closer to it. Ther efore, RAI[...]

2 RAID Benef its and Tr adeof fs 2-15 RAID Types an d T radeoffs space usage is critical, bind an individual unit or RAID 0 Group without so ftware mirro ring. A R AID 1 mirrored pair or RA ID 1 /0 Grou p provi des ve ry hi gh da ta a v ai l ab i li t y . T h e y a re m or e ex p e ns i v e t h an R A I D 5 o r RA I D 3 G ro u p s, since only 50 pe[...]

2 2-16 EMC Fibre C hannel Storage-System Co nf iguration Plannin g RAID Types and Tradeof fs Figure 2-7 Disk Space Usage in the RAID Conf igura t ions A RAID 0 Group (nonredunda nt individual access array) provides a ll its disk space for user files, but does n o t provide any high availa bility features . A RAID 1/0 G roup pr ovides the best combi[...]

2 Guid e lines for RAID T y pes 2-17 RAID Types an d T radeoffs Guidelines f or RAID Types T o decide when to use a RAID 5 G roup, RA ID 3 Group, m irror (th at is, a RAID 1 m irro red pair o r RAID 1/0 Gr oup), a RAID 0 Group, individual disk unit, or hot spare, you need to weigh these factors: • Importance of dat a avai lability • Importance [...]

2 2-18 EMC Fibre C hannel Storage-System Co nf iguration Plannin g RAID Types and Tradeof fs Use a RAID 0 G roup (nonredunda nt individual acce ss array) for applicatio ns wher e • High avai lability is not importa nt • Overall performance is very important Use an indiv idual unit for applications where • High avai lability is not importa nt [...]

2 Sample App lications f or RAID Types 2-19 RAID Types an d T radeoffs Sample Applica tions f or RAID Types This section d e scribes so me types of applications in which you wo uld want to use a RAID 5 Group, RAID 3 G r oup, RAID 1 mirror ed pair , RAID 0 Group (nonr edundan t array) , RAID 1/0 Gr oup, or individual unit. RAID 5 Group (individual a[...]

2 2-20 EMC Fibre C hannel Storage-System Co nf iguration Plannin g RAID Types and Tradeof fs RAID 0 Group (nonredundant individual access ar ray) — Use a RAID 0 Group wher e the best overall performance is important. In terms of high av ailability , a RAID 0 Group is less available than an individual uni t. A RAID 0 Group (like a RAID 5 Group) re[...]

Planning File System s and LUNs with Shared Switched S tor age 3-1 3 This c hapter show s a sam ple RAID , LUN, and Stor age Gr oup configuration with shared storage, and then pro vides worksheets for plann ing your o wn shared sto rage in stallati on. T opics are • Dual Paths to LUNs .......................... ............................. .....[...]

3 3-2 EMC Fibre C hannel Storage-System Co nf iguration Plannin g Planning File Systems an d LUNs with Shared Switched Storage Dual P aths to LUNs A shar ed storage system includes two or more servers , one or two Fibre Channel sw itches, and one or mor e storage systems, each with two SPs and Acc es s Logix softwar e. W ith shared s torage, there [...]

3 Sample Sha red Switched Instal lation 3-3 Planning File Systems and LUNs with Shared Switched Storage Sample Shared Switche d I nstallatio n The follow ing figure shows a sample shared swit ched (high-availability) storage system connected to thr ee servers: two servers in a clus ter and one se rver running a database ma nagement program. Figure [...]

3 3-4 EMC Fibre C hannel Storage-System Co nf iguration Plannin g Planning File Systems an d LUNs with Shared Switched Storage The storage-syste m disk IDs and server Storage G roup LUNs ar e as follows. W ith 36-Megabyte disks, the LUN sto rage capacities and dri ve names are as fo llows. File Ser ver — 288 Gbytes on two LUN s Unit U on five d i[...]

3 Sample Sha red Switched Instal lation 3-5 Planning File Systems and LUNs with Shared Switched Storage Mail Server — 576 Gbytes on four LU Ns Unit O o n five disks boun d as a RAID 5 Gr oup for 144 Gbytes of storage; for the mail delivered via ISP A. Unit P on five disks bound as a RAID 5 Gr oup for 144 Gbytes of storage; for the mail delivered [...]

3 3-6 EMC Fibre C hannel Storage-System Co nf iguration Plannin g Planning File Systems an d LUNs with Shared Switched Storage Planning Applications, LUNs , a nd Storage Gr oups This section h elps you plan your shared st orage use — the applicatio ns to run, the LUNs that will hold them , and the Stora ge Groups that will belong to each server .[...]

3 Planning Ap plications, LU Ns, and Storage Groups 3-7 Planning File Systems and LUNs with Shared Switched Storage Application and LUN Planning W orksheet A sample worksh eet begins as follows: Completing the Application and LU N Planning W o rksheet Applicatio n . Enter the application name or type. File system, partition , or drive . W rite the [...]

3 3-8 EMC Fibre C hannel Storage-System Co nf iguration Plannin g Planning File Systems an d LUNs with Shared Switched Storage RAID type of LUN . This is the RAID Group type you want for this partition, file sys tem, or logical volume. The features of RAID types are exp lained in Chapt er 2. For a RA ID 5, RA ID 1, RA ID 1/0, and RAID 0 Group, you [...]

3 Planning Ap plications, LU Ns, and Storage Groups 3-9 Planning File Systems and LUNs with Shared Switched Storage LUN and Storage Group Planning W orksheet Storage Group ID or name:______ Server hostname:_____________________ Dedicated Shared LUN ID or name_______RAID type ___ Cap. (Gb) _____ Disk IDs_________________________________________ LUN [...]

3 3-10 EMC Fibre C hannel Storage-System Co nf iguration Plannin g Planning File Systems an d LUNs with Shared Switched Storage Part of a sam ple LUN and Storage Group worksheet follo ws. Completing the LUN and Storage Group Planning W o rksheet As shown, draw circles ar ound the disks that will compos e each LUN, and within each cir cle specify th[...]

3 Planning Ap plications, LU Ns, and Storage Groups 3-11 Planning File Systems and LUNs with Shared Switched Storage Storage Group will be dedicat e d (not accessi ble by another system in a cluster), mark the Dedicated box at the end of its line; if the Storage Group will be access ible to one or more o ther servers in a cluster , write the hostna[...]

3 3-12 EMC Fibre C hannel Storage-System Co nf iguration Plannin g Planning File Systems an d LUNs with Shared Switched Storage LUN Details W ork s heet Storage sy stem (comp lete this section once fo r each storag e system) Storage -system numbe r or name:______ Storage -system installation ty pe ❏ Unshared Direct ❏ S hared- or-Clus tered D ir[...]

3 Planning Ap plications, LU Ns, and Storage Groups 3-13 Planning File Systems and LUNs with Shared Switched Storage LUN Details W orksheet Storage sys tem (comple te this section on ce for e ach storage syst em) Storag e-system n umber or na me:__ SS1 __ __ Storage-s ystem installation ty pe ❏ Unshared Direct ❏ Shared -or-Clustered D irect ❏[...]

3 3-14 EMC Fibre C hannel Storage-System Co nf iguration Plannin g Planning File Systems an d LUNs with Shared Switched Storage Completing the LUN Details Wo rksheet Complete the header portion of the worksheet for each storage system as described below . Copy the blank worksheet as ne eded. Storage-system entr ies Storage-syst em installation type[...]

3 Planning Ap plications, LU Ns, and Storage Groups 3-15 Planning File Systems and LUNs with Shared Switched Storage LUN ID . The LUN ID is a hexadecimal number as signed when you bind th e disks into a LUN. By default, the ID of th e first L UN bo un d i s 0 , t he se co nd 1, an d s o o n. Ea ch LU N I D mu st be un iqu e within the storage syste[...]

3 3-16 EMC Fibre C hannel Storage-System Co nf iguration Plannin g Planning File Systems an d LUNs with Shared Switched Storage per RAID Group may adversely imp act performance. If you want multiple LUNs per RAID Gro up, then use a RAID Gr oup/LUN series of entries for ea ch LUN. Disk IDs . Enter the ID(s) of all disks that will make up the LUN or [...]

3 Planning Ap plications, LU Ns, and Storage Groups 3-17 Planning File Systems and LUNs with Shared Switched Storage File system, pa rtition, or drive . W rite the name of th e file system, partition, or drive letter yo u will cr ea te on this LUN. Thi s is the sam e name you wr ote on the a pplica tion w orks heet. On the following line, write any[...]

3 3-18 EMC Fibre C hannel Storage-System Co nf iguration Plannin g Planning File Systems an d LUNs with Shared Switched Storage[...]

Planning LU Ns and File Systems with U nshared Direct Storage 4-1 4 Invisible Body T ag This chapter sho ws sample RAID and LUN co nfigurations wit h direct s torage installations and then provides worksheets for planning your own storage installation. T opics are • Dual SPs and Paths to LUNs ................. ................. ................. [...]

4 4-2 EMC Fibre C hannel Storage Systems Configuration Planning G uide Planning LUNs and File S yst ems with Unshared Direct Storag e Dual SPs and P a ths to LUNs If a storage system has two SPs, the re are t wo routes to its LUNs. If the server ha s two adapters an d the sto rage system has two SPs, Application T ran spar ent Failover (A TF). A TF[...]

4 Unshared Direct and Shared-or -Clustered Direct Storage 4-3 Planning LUNs and File Systems with Unshared Direct Storage The storage system disk IDs an d LUNs ar e as follows. The LUN capacitie s shown assume 36-Gbyte disks. Sample Shared-or -Clust ered Direct In stallation Figure 4-2 Sample Clustered Installation If each disk holds 36 Gbytes, the[...]

4 4-4 EMC Fibre C hannel Storage Systems Configuration Planning G uide Planning LUNs and File S yst ems with Unshared Direct Storag e Planning Applications and LUNs This section helps you plan your unshared (d irect) storage use — applicatio ns you want to run and the L UNs that will hold them. The worksheets to help you do this in clude • Appl[...]

4 Plannin g Applications a nd LUNs 4-5 Planning LUNs and File Systems with Unshared Direct Storage Application and LUN Planning W orksheet A sample worksh eet begins as follows: Completing the Application and LU N Planning W o rksheet Applicatio n . Enter the application name or type. File system, partition , or drive . W rite the drive letter (for[...]

4 4-6 EMC Fibre C hannel Storage Systems Configuration Planning G uide Planning LUNs and File S yst ems with Unshared Direct Storag e RAID configuration. For example, for drive T , assign the volume ID RAID5_T . The vo lume label will then identify the drive letter . RAID type of LUN is the RAID Gr oup type you want for thi s partition, file sys te[...]

4 Plannin g Applications a nd LUNs 4-7 Planning LUNs and File Systems with Unshared Direct Storage LUN Planning W orksheet - Rackmount F ull-fibre storage system 0_0 0_1 0_2 0_3 0_4 0_5 0_6 0_7 0_8 0_9 1_0 1_1 1_2 1_3 1_4 1_5 1_6 1_7 1_8 1_9 2_0 2_1 2_2 2_3 2_4 2_5 2_6 2_7 2_8 2_9 3_0 3_1 3_2 3_3 3_4 3_5 3_6 3_7 3_8 3_9 4_0 4_1 4_2 4_3 4_4 4_5 4_6 [...]

4 4-8 EMC Fibre C hannel Storage Systems Configuration Planning G uide Planning LUNs and File S yst ems with Unshared Direct Storag e LUN Pla nning Workshee t - Desk side 1_4 1_2 1_1 1_3 1_5 1_9 1_8 1_7 1_6 F ull-fibre storage system 2_4 2_2 2_1 2_3 2_5 2_9 2_8 2_7 2_6 0_0 0_1 0_2 0_3 0_4 0_5 0_6 0_7 0_8 0_9 1_0 2_0 LUN number_______RAID type ___ C[...]

4 Plannin g Applications a nd LUNs 4-9 Planning LUNs and File Systems with Unshared Direct Storage A sample LUN wo rksheet follows. Completing the LUN Planning W o rksheet As shown, draw circles ar ound the disks that will compos e each LUN, and within each cir cle specify the RAID type (for exa mple, RAID 5) an d LUN ID. This is informa tion you w[...]

4 4-10 EMC Fibre C hannel Storage Systems Configuration Planning G uide Planning LUNs and File S yst ems with Unshared Direct Storag e LUN Details W orksheet Storag e system (comple te this section once for eac h storage syst em) Storage-sys tem number or name:__ ____ Storage-sys tem inst allation type ❏ Unsh ared Direct ❏ Shared-or-Cl ustered [...]

4 Plannin g Applications a nd LUNs 4-11 Planning LUNs and File Systems with Unshared Direct Storage LUN Details W ork s heet Storag e system (comple te t his section on ce for each storage sy stem) Storage-s y s tem number o r name:__ 1 ____ Storage-s ystem installation t y pe ❏ Unshared Direct ❏ Shared -or-Clustered D irect ❏ Shared Switched[...]

4 4-12 EMC Fibre C hannel Storage Systems Configuration Planning G uide Planning LUNs and File S yst ems with Unshared Direct Storag e Completing t he LUN Details W or ksheet Complete the header portion of the worksheet for each storage system as described below . Copy the blank worksheet as needed. Sampl e compl eted LUN works hee ts appear late r[...]

4 Plannin g Applications a nd LUNs 4-13 Planning LUNs and File Systems with Unshared Direct Storage you would specify 8 0 Mbytes for the r ead cach e and 160 Mbytes for the write cache. Cache page size . This applies to both read and write caches. It ca n be 2, 4, 8, o r 16 Kbytes. As a general guideline, we suggest For a general-purpose file serve[...]

4 4-14 EMC Fibre C hannel Storage Systems Configuration Planning G uide Planning LUNs and File S yst ems with Unshared Direct Storag e For example, • A five-disk RAID 5 or RAID 3 Gr oup of 36-Gbyte di sks holds 144 Gbytes; • An eight-d isk RAID 1/0 Group of 36-Gbyte disks also holds 144 Gby tes; • A RAID 1 mi rror ed pair of 36-Gbyte disks h [...]

4 Plannin g Applications a nd LUNs 4-15 Planning LUNs and File Systems with Unshared Direct Storage units that w ill benefit from it. Read and write cachin g recommenda tions follow . Ta b l e 4 - 1 Cac he Recommendat ions for Different RAID T ypes Servers that ca n access this LUN . Enter the name of each server that will be able to use the LUN. N[...]

4 4-16 EMC Fibre C hannel Storage Systems Configuration Planning G uide Planning LUNs and File S yst ems with Unshared Direct Storag e[...]

Storage System Hard w are 5-1 5 Invisible Body T ag This ch apter describes the storage - system har dware compo nents. To p i c s a r e • Hardw are fo r Shar ed Storage ................ ................. ................. ......... 5-3 • Hardw are fo r Unshar ed Storage ................. ................. ................ .... 5-6 • Planning[...]

5 5-2 EMC Fibre C hannel Storage Systems Configur ation Planni ng Guide Storag e System Ha r dware The storage systems attach to the server a nd the interconnect components described in Chapter 1. Figure 5-1 Shared and Unshared Sto rage Disk-array storage systems Server Adapter Adapter Server Adapter Adapter Server Adapter Adapter Server Adapter Ad[...]

5 Hard w a re f or S hared Storage 5-3 Storag e System Ha r dware Hardw are for Share d Storage The primary har dware component for shared s torage is a ten-slot Disk-a rray Processor Enc losure (DPE) wit h two storag e pr ocess ors (SP). The DPE can support up to nin e separate 10-slo t enclosures called Disk Array En closures (D AEs) for a total [...]

5 5-4 EMC Fibre C hannel Storage Systems Configur ation Planni ng Guide Storag e System Ha r dware Figure 5-3 Rackmount Syst em with DPE and D AEs Disks The disks — availa ble in dif f ering capacities — fit into sl ots in the enclosure. Each module has a unique ID that you us e when binding or monitoring its operation. The ID is derived fr om [...]

5 Hard w a re f or S hared Storage 5-5 Storag e System Ha r dware Disk Modules and Module IDs — Rackmount DPE-Based System Storag e Processor (SP) The SP provides the intelligence of th e storage sys tem. Using its own operating system ( called Core Software), the SP processes the data written to or read from the disk modules, and monitors the mo[...]

5 5-6 EMC Fibre C hannel Storage Systems Configur ation Planni ng Guide Storag e System Ha r dware Hardw are fo r Unshared Storage Unshared storage sy stems are less costly a nd less complex tha n shared storage systems. They of fer many shar ed storage system features ; for example, you can use multiple unshar ed storage systems with multipl e ser[...]

5 Hardware f or U nshared Storage 5-7 Storag e System Ha r dware Figure 5-5 Storage System Types for Unshared St orage Deskside DPE with DAE Rackmount DPE, one enclosure, supports up to 9 DAEs Disk-array processor enclosure (DPE) Intelligent disk-array enclosure (iDAE) 30-slot deskside Rackmount 10-slot deskside[...]

5 5-8 EMC Fibre C hannel Storage Systems Configur ation Planni ng Guide Storag e System Ha r dware The follow ing figure shows so me components of a deskside DP E. Components f or rackmou n t types are similar . Figure 5-6 DPE Components - Deskside Model Disks The disks — availa ble in dif f ering capacities — fit into sl ots The disks — avai[...]

5 Hardware f or U nshared Storage 5-9 Storag e System Ha r dware Figure 5-7 Disks and Disk IDs Storag e Processor (SP) The SP provides the intelligence of th e storage sys tem. Using its own operating system ( called Core Software), the SP processes the data written to or read from the disk modules, and monitors the modules themselves. An SP consi [...]

5 5-10 EMC Fibre C hannel Storage Systems Configur ation Planni ng Guide Storag e System Ha r dware Figure 5-8 Storage System with T w o SPs Connected to the Same Ser ver Figure 5-9 Storage System with T w o SPs Connected to Different Servers Either SP can control any LUN in the sto rage system, but only one SP at a time can contr ol a LUN. If one [...]

5 Planning Y our Hardware Components 5-11 Storag e System Ha r dware Storage-sys tem caching pr ovides si gnificant performance enhancement. Read cach ing is available with one or two SPs. Mirror ed write caching, pa r ticularly h elpful with RAID 5 I/O, requires two SPs (to mirror one another , fo r cache integrity ) and a Standby Po wer S upply ([...]

5 5-12 EMC Fibre C hannel Storage Systems Configur ation Planni ng Guide Storag e System Ha r dware Conf igurati on T radeo f fs - U nshared Storage For each storage-system enclosur e, you have two import a nt areas of choice: rack mount or deskside m odel, and high-a vailability options . Generally , rackmount systems are more versatile; you can a[...]

5 Planning Y our Hardware Components 5-13 Storag e System Ha r dware Ta b l e 5 - 1 High-A v ailability Options, Deskside Unshared Storage For rackmount sys tems, the standby power supply or supplies (SPS or BBU) must be placed in a tray directly beneath the storage system. T y pically , any h ubs in the cabinet mount at the top or bottom o f the c[...]

5 5-14 EMC Fibre C hannel Storage Systems Configur ation Planni ng Guide Storag e System Ha r dware Hardw are Data Shee ts The hard ware data sheets shown in this section provide the plan t requir ements, including dimensions (footprint), weight, power requir ements, and cooling needs, for DPE, iDAE, DAE, and 30-slot SCSI disk systems. Sections on [...]

5 Hardware Data Shee ts 5-15 Storag e System Ha r dware P ower requirements V olt age rati ng: 1 00 V ac to 240 V ac – 10 %/+15% , single-phase, 47 H z to 6 3 Hz; power supplies are auto-ranging Current draw: At 100 v ac input – Desksi de DPE/DAE: 12.0 A ; Rackmount DPE: 8.0 A max; SPS: 1. 0 A max per unit during charge Power cons umpti on: De [...]

5 5-16 EMC Fibre C hannel Storage Systems Configur ation Planni ng Guide Storag e System Ha r dware iD AE Data S heet Y ou can use a rackmount or desks ide DPE and DAE(s) for uns hared storage. The iDAE dimensions and re quirements ar e shown in the followi ng figure. Dimensions and Requirements, iD AE Width 52.1 cm (20.6 in) Depth 74.7 cm (30 in) [...]

5 Hardware Data Shee ts 5-17 Storag e System Ha r dware P ower cables (sin gle or dual) ac inlet connector: IEC 320-C14 power inlet Deskside power cor d: USA: 1.8 m (6 .0 ft): NEMA 6-15P plug Outside US A: Sp ecific to co untry Operating en vironment T emperature: 10 o C to 40 o C (50 o F to 104 o F) Relative humidity: Noncondensi ng, 20% to 80% Al[...]

5 5-18 EMC Fibre C hannel Storage Systems Configur ation Planni ng Guide Storag e System Ha r dware D AE Data Sheet The DAE storage-system dimensions and r equ ir ements are shown in the followin g figure. Dimensions and Requirements, D AE Width 52.1 cm (20.6 in) Depth 74.7 cm (30 in) Height 68 cm (26.8 in) Depth 74.7 cm (30 in) Width 25 cm (9.8 in[...]

5 Hardware Data Shee ts 5-19 Storag e System Ha r dware P ower cables (sin gle or dual) ac inlet connector: IEC 320-C14 power inlet Deskside power cor d: USA: 1.8 m (6 .0 ft): NEMA 6-15P plug Outside US A: Sp ecific to co untry Operating en vironment T emperature: 10 o C to 40 o C (50 o F to 104 o F) Relative humidity: Noncondensi ng, 20% to 80% Al[...]

5 5-20 EMC Fibre C hannel Storage Systems Configur ation Planni ng Guide Storag e System Ha r dware Cabinets f o r Rac kmount Enclosures Prewire d 19-inc h-wide cabinets, ready for installatio n, ar e available in the following dimensions to accept rackmount storage systems. As an exam ple, a rackmount sto rage system that suppo rts 100 disk module[...]

5 Cabl e and Configuration Guid elines 5-21 Storag e System Ha r dware Cable and Configuration Guidelines W e recommend that all copper-inter connected nodes be connected to a common gr ound grid. The common grid is n o t needed for opt ical interconnections. Copper cable allows up to 30 meters ( 9 9 feet) between nodes or switches and h ubs. Optic[...]

5 5-22 EMC Fibre C hannel Storage Systems Configur ation Planni ng Guide Storag e System Ha r dware Y ou can use any existing FDDI, multim o de, 62.5 micron cable with good connections to attach servers, switches or hubs, and storage systems. These cables must be d edicated to storage-system I/O. Ta b l e 5 - 3 Cable Sizes — Optical Lengt h T y p[...]

5 Cabl e and Configuration Guid elines 5-23 Storag e System Ha r dware Ta b l e 5 - 4 Cable Sizes — Copper Component planning diagrams an d worksheets follow . Lengt h T y pical Use 0.3 m (1 ft), non-equal ized Conn ecting DPE/D AE and DAE LCCs 1.0 m (3.3 ft), non -equalized Conn ec ting a hub to an adjacent storage system 3 m (10 ft), non- equal[...]

5 5-24 EMC Fibre C hannel Storage Systems Configur ation Planni ng Guide Storag e System Ha r dware Hardw are Planning W orksheets Followin g ar e wo r ksh e ets to note th e hardware components you want. There a re two types of configuration: • Shar ed storage • Unshared storage Hardware fo r Share d Storage Figur e 5-11 Cable Identif ier — [...]

5 Hardware Planning Worksheets 5-25 Storag e System Ha r dware Hardware Comp onent W o rksheet for Shared St orage Numb er of servers:___ _ Adapters in server s:____ Switche s: 16-port:___ _8-port:___ _ Rackmoun t DPEs:_____SP/ LCC pairs:_____PSs:_____ SPSs:____ Rackmount cabi nets:___ Rack mount DAEs: _____ LCCs:_ ____PSs:_____ Cable s between ser[...]

5 5-26 EMC Fibre C hannel Storage Systems Configur ation Planni ng Guide Storag e System Ha r dware Figur e 5-12 Sample Sha red Storage Installation Switch 2 Switch 1 LCC LCC DAE LCC LCC DAE LCC LCC DAE LCC LCC DAE LCC LCC DAE LCC LCC LCC LCC DAE DPE SP A SP B Path 2 Path 1 Storage system Highly available cluster Cable between storage systems or en[...]

5 Hardware Planning Worksheets 5-27 Storag e System Ha r dware Hardware fo r Unsh ared Storag e The cable identifiers used in the following figure and on the fol lowin g worksh eets appl y to al l ty pes o f un shar ed stora ge syst ems. So, if you want to plan a site with dif ferent types of systems, you can consolidate all your unshared storage c[...]

5 5-28 EMC Fibre C hannel Storage Systems Configur ation Planni ng Guide Storag e System Ha r dware Figur e 5-13 Cable Identif ier — Unsha red S ystem witho ut Hub s Adapter Adapter Adapter Adapter LCC LCC LCC LCC LCC LCC DAE DAE iDAE/DPE SP A SP B FC Loop 2 FC Loop 1 Server 1 Server 2 Storage system A2 A2 A1 A1 E2 E1 E2 E1[...]

5 Hardware Planning Worksheets 5-29 Storag e System Ha r dware Figur e 5-14 Cable Identif ier — Unsha red Fu ll-F ibre S yste m with Hub s Hub 2 Hub 1 Adapter Adapter Adapter Adapter LCC LCC LCC LCC LCC LCC DAE DAE iDAE/DPE SP A SP B LCC LCC LCC LCC LCC LCC DAE DAE iDAE/DPE SP A SP B FC Loop 2 FC Loop 1 . . . Server 1 Server n Storage system m St[...]

5 5-30 EMC Fibre C hannel Storage Systems Configur ation Planni ng Guide Storag e System Ha r dware Hardware C omponen t W ork sheet for Un shared S torage Numbe r of server s: Adapters in servers:_ _____ Hubs (co pper):____ _ MIAs (copper to opt ical):____ __ DPE-based and D AE-only storag e systems: Rackmount DPEs:___ __SP/LCC pairs:_____ PSs:___[...]

5 Hardware Planning Worksheets 5-31 Storag e System Ha r dware Figur e 5-15 Sample Unsha red Deskside System — Basic Conf iguration Sample Component Worksheet A1 Cable betw een ser v er and storage system E1 Cable betw een storage systems or enclosures Included with deskside DPE Adapter LCC LCC DA E iD AE/DPE SP A Server E1 A1 Har dw are Compon e[...]

5 5-32 EMC Fibre C hannel Storage Systems Configur ation Planni ng Guide Storag e System Ha r dware Figur e 5-16 Sample Unsha red Deskside System — Dual-Ada pter/D ual-SP Configuration LCC LCC DAE LCC LCC DAE LCC LCC DAE LCC LCC LCC LCC DAE DPE SP A SP B FC Loop 2 FC Loop 1 Storage system E1 Cable between storage systems or enclosures included wi[...]

5 Hardware Planning Worksheets 5-33 Storag e System Ha r dware Sample Component Worksheet Hardware Compon ent W o rksheet for Unshare d Storage Number of servers: 1 Adapters i n servers:__ 2 __ Hubs (cop per):_____ _ MIAs (copp er to optical):___ ____ DPE-based and DAE-o nly storage systems: Rackmount DPEs :_____SP/LCC p airs:_____ PSs:_____SPSs:_ [...]

5 5-34 EMC Fibre C hannel Storage Systems Configur ation Planni ng Guide Storag e System Ha r dware Figur e 5-17 Sample C omponent W orksheet for DPE-Based System wit h Hubs — Tw o Loops Hub 2 Hub 1 LCC LCC DAE LCC LCC DAE LCC LCC DAE LCC LCC LCC LCC DAE DPE SP A SP B LCC LCC DAE LCC LCC DAE LCC LCC DAE LCC LCC LCC LCC DAE DPE SP A SP B FC Loop 2[...]

5 Hardware Planning Worksheets 5-35 Storag e System Ha r dware What Nex t? This chapter explained har dware compon ents of shared a nd unshared storag e systems. If you have compl eted the worksheet s to your satisfaction, you are r eady to consider or dering some of this equipment. Or you may want to read about storage management in the next chapt[...]

5 5-36 EMC Fibre C hannel Storage Systems Configur ation Planni ng Guide Storag e System Ha r dware[...]

Storage-System Mana gement 6-1 6 This chapter explai ns the management a pplications you can use to manage storage systems fr om servers. T opics ar e • Using Navisphere M anager Software ............. ............................ .... 6-3 • Storage Management W orksheets .............. ................. .................... 6-5 Storage-System [...]

6 6-2 EMC Fibre C hannel Storage-System Co nf iguration Plannin g Storage-System Mana gement Navi spher e softw are lets you b ind and unbind d isks, ma nipula te caches, examine storage-system s tatus and logged events, transfer contr ol from one SP to another , and examine events recor ded in storage system event logs. Navisphere products have tw[...]

6 Usi ng Nav isphere M anager S oftw a r e 6-3 Storage-System M anagement Using Navisphere Ma nager Softwa re Navisphere Manager softwa r e (Manager) lets you manage multiple storage systems connected to servers o n a TCP/IP net work. Manager offers extensive management features and includes comprehensive on-line help. Mana ger is r equired for sha[...]

6 6-4 EMC Fibre C hannel Storage-System Co nf iguration Plannin g Storage-System Mana gement Figure 6-1 Sample Shared Switched En vironment with Na visp her e Manager Figure 6-2 Sample Unshared En vironment with Na visphere Manager File Server Management station and server Mail Server Management station and server Database Server Switch fabric Swit[...]

6 Storage Manag ement W or ksheets 6-5 Storage-System M anagement Storage Manageme nt W orksheets This section includes two worksheets: one for shared storage and one for unshar ed storage. The following worksheet will help you plan your storage system management enviro nment. For each host, complete a section. For the share d storage worksheet, co[...]

6 6-6 EMC Fibre C hannel Storage-System Co nf iguration Plannin g Storage-System Mana gement For u nsh ared stor age ( unsha red direc t or sh ared-o r-clust ered di rect), for each host, choos e a Navisphere pr oduct. The host may be a management station that is not a server (complete only the Ma nager section); it may be a management station th a[...]

6 Storage Manag ement W or ksheets 6-7 Storage-System M anagement Management Utility W orksheet – Unshar ed Storage Hostnam e: Operat ing system : Storage sys tem type: V DPE-based V iDAE-b ased Software: V Navisphere Ma nager/Agen t V Navisph ere Analyzer V Navis phere Event M onitor List all the servers th i s ho st will manag e. Each managed s[...]

6 6-8 EMC Fibre C hannel Storage-System Co nf iguration Plannin g Storage-System Mana gement[...]

EMC Fibre Ch annel Storage Systems Conf iguration Plan ning Guide i-1 A ac power r equirements DAE-only storage syst em 5-18 DPE sto rage system 5-14 iDAE s torage sy stem 5-16 application pla nning shared storage 3-6 unshared storage 4-4 application worksheet , completin g share d 3-6, 4- 4 unshar ed or clust ered dir ect 4-4 applications for RAID[...]

EMC Fibre C hannel Storage Systems Configur ation Planni ng Guide i-2 Index site requiremen ts 5-18 weig ht 5-18 da ta she et s, h ard ware 5 -1 4 device name, opera ting system 3-16, 4-15 disk capa cit y defined 4-14 capacity, defi ned 4-13 configur ation ty pes compar ed 2-12 configurat ion, see al so RAID Group IDs 3-4, 4- 2 LUN types plannin g [...]

i-3 EMC Fibre Ch annel Storage Systems Conf iguration Plan ning Guide Inde x iDAEstorage system 5-16 high avai lability options for unshared storag e 5-13 shared s witched instll ation 1-10 host, see also ser ver host-bus ada pter (HBA), intr oduced 1-4 host- bus adapter d river packag e 1-4 hot s par e defined 2-9 sample applic ations 2-2 0 when t[...]

EMC Fibre C hannel Storage Systems Configur ation Planni ng Guide i-4 Index P page size, cach e 3 -14, 4-1 3 parallel access a rray , see RAID 3 Group paths to LU Ns 3-2, 4-2 performance, RAID Group 2-13 physical disk unit, see LUN (logic al unit) physical vol ume, see LUN (logical unit) plannin g LUNs and fil e syste ms 3- 6 pla nt requ irement s [...]

i-5 EMC Fibre Ch annel Storage Systems Conf iguration Plan ning Guide Inde x SP (storage pr ocessor) description 5-5 , 5-9 FC-AL address ID 3-14 , 4-12 SPS (standby power supply) DPE storag e system 5-8 storage compo nents share d stor age 5- 3 storage managment worksh eets 6-5 storage sys tem caching on worksh eet 4-14 storage-s ystem caching as f[...]

EMC Fibre C hannel Storage Systems Configur ation Planni ng Guide i-6 Index[...]