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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) .
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....
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 ............ ................. .
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 .
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 .
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.
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.
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 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-arra.
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 .
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.
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.
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.
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.
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.
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 an.
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).
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.
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.
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.
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.
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.
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 .
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 .
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.
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.
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.
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.
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 .
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.
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.
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.
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.
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.
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.
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 .
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 .
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.
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 labilit.
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.
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.
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.
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.
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.
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.
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.
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 .
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.
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.
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.
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),.
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.
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 stor.
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 .
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.
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.
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.
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.
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).
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.
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.
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.
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 .
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_.
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.
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.
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 on.
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) St.
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 .
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.
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 .
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 .
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 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.
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).
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.
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.
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.
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-ar.
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.
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.
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.
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.
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 .
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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:___.
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 D.
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.
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 .
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 .
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:_ _.
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 .
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 L.
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 (.
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.
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.
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 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.
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.
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 vir.
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.
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.
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.
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 s.
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 c.
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 .
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.
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.
EMC Fibre C hannel Storage Systems Configur ation Planni ng Guide i-6 Index.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté EMC FC4500 c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du EMC FC4500 - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation EMC FC4500, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le EMC FC4500 va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le EMC FC4500, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du EMC FC4500.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le EMC FC4500. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei EMC FC4500 ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
