Dell 3 manual

www .dell.com | support.dell.com Dell™ P owerEdge Ex pandable RAID Co ntroller 3/QC, 3/DC, 3/DCL and 3/SC PERC 3 User ’s Guide[...]

_______ ________ _____ Information in thi s document is subjec t to cha nge witho ut notice . © 2002 De ll Comp uter Corporati on. A ll rights reserved. Reproduc ti on in any manner wh atsoever without the w ri tt en perm i ssion of Dell Com put er Corpor ation is s trict ly fo r bi dd en. T rademar ks used in th is text : Dell , the DELL l ogo, P[...]

1 Safety Instructions CAUTION: Safety Instructions Use the following safety guidelines to help ensure your own personal safety and to help protect your computer and work ing environment from potential damage. General • Do not attempt to service the computer yourself unless you are a trained service te chnician. Always follow installa tion instruc[...]

2 www .dell .com | support. dell.co m • T o help prote ct your computer fro m sudden, transient incr eases and decr eases in electrical power , use a surge suppressor , line conditioner , or unint erruptible po wer supply (UPS). • Ensure tha t nothing rests on your computer ’s cables and that the cables are not located where they can be stepp[...]

3 NOTE: The voltage selection switch must be set to the 115- V position even though the AC power avail able in Japan is 100 V . • 100 V/ 50 Hz in easter n Japan and 100 V /60 Hz in western Japan • 230 V/50 Hz in some regions in the Caribbean and South America and most of Europe, the Middle East, a nd the F ar East Also , ensure that your monito[...]

4 www .dell .com | support. dell.co m • When you disconnect a cable, pull on its connector or on its strain- re lief loop, not on the cable itself. Some cabl es have a connector with locking tabs; if you ar e disconnecting th is type of cable , pre ss in on the locking tabs before di sconnecting the cable. As you pull connectors apart, keep them [...]

5 Ergonomic Computing Habits CAUTION : Improper or prolong ed keyboard use may result in inju ry . CAUTION: Viewing the monitor screen for extended periods of time may result in eye strain. Battery Disposal Do not disp ose of the ba ttery alon g with househ old waste. Contact your local waste disposal agency for th e address of the nearest battery [...]

6 www .dell .com | support. dell.co m[...]

Contents 7 Contents Safety Instruction s . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 Overview PERC 3 Ov erview . . . . . . . . . . . . . . . . . . . . . . . . . . 24 PERC 3 F eature s . . . . . . . . . . . . . . . . . . . . . . . . . . 24 SCSI Channels . . . . . . . . . . . . . . . . . . . . . . . . . 25 Non-v olatile R andom Acc ess Memo[...]

8 Contents Pa r i t y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Hot Spares . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Disk R ebuilds . . . . . . . . . . . . . . . . . . . . . . . . . 38 Hot Swap . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 SCSI Drive States . . . . . . . . . . . . . . . . . . . . . . . 3[...]

9 Contents PERC 3/S C Specificatio ns . . . . . . . . . . . . . . . . . . . . . 58 PCI Bridge/CP U . . . . . . . . . . . . . . . . . . . . . . . . 59 Cache Memor y . . . . . . . . . . . . . . . . . . . . . . . . . 59 PER C 3/SC BIOS . . . . . . . . . . . . . . . . . . . . . . . 60 Onboard Spea ker . . . . . . . . . . . . . . . . . . . . . . . 60 Se[...]

10 Contents SCSI Fir mware . . . . . . . . . . . . . . . . . . . . . . . . 71 RAID Managem ent . . . . . . . . . . . . . . . . . . . . . . 72 6 PERC 3/QC F e atures Hardware Requirements . . . . . . . . . . . . . . . . . . . . . . 74 Config uration F eature s . . . . . . . . . . . . . . . . . . . . . . 74 SMART T ech nolo gy . . . . . . . . . . . .[...]

11 Contents Physi cal Devic e L ayout . . . . . . . . . . . . . . . . . . . . . . 89 Configur ing Arrays . . . . . . . . . . . . . . . . . . . . . . . . 92 Arranging Ar rays . . . . . . . . . . . . . . . . . . . . . . . 93 Creating Hot Spares . . . . . . . . . . . . . . . . . . . . . . 93 Creating Log ical Driv es . . . . . . . . . . . . . . . . . [...]

12 Contents Step 5—Install PER C 3/SC . . . . . . . . . . . . . . . . . . 111 Step 6—C onnect SCSI Cables . . . . . . . . . . . . . . . . . 113 Step 7—Set T arget IDs . . . . . . . . . . . . . . . . . . . . 114 Step 8—P ower On Host System . . . . . . . . . . . . . . . . 115 Step 9—R un PER C 3 BIOS Con figuration Utility o r WebBIOS Util[...]

13 Contents Optio nal Equi pment . . . . . . . . . . . . . . . . . . . . . . 134 PERC 3/Q C Card L ayout . . . . . . . . . . . . . . . . . . . . . . 135 Installation Steps . . . . . . . . . . . . . . . . . . . . . . . . . 136 Step 1—Unpa ck the PER C 3/QC Controll er . . . . . . . . . . 136 Step 2—P owe r Down . . . . . . . . . . . . . . . . . [...]

14 Contents PER C 3/QC and P ERC 3/DC Default Se ttings . . . . . . . . . 161 PER C 3/SC and P ERC 3/DCL Default Se ttings . . . . . . . . . 161 R e ser ved Di sk Sp ace dur ing Con figur ation . . . . . . . . . . . 162 Design ating Dr ives as Hot Spar es . . . . . . . . . . . . . . . . . 162 Using Easy Configuration . . . . . . . . . . . . . . . .[...]

Contents 15 Dell Mana ger Me nu Op tion s . . . . . . . . . . . . . . . . . . . 190 Initialize Menu . . . . . . . . . . . . . . . . . . . . . . . . 190 Objects Menu . . . . . . . . . . . . . . . . . . . . . . . . . 190 Format Menu . . . . . . . . . . . . . . . . . . . . . . . . . 194 R e build Menu . . . . . . . . . . . . . . . . . . . . . . . . . [...]

16 Contents 14 Appendix A: SC SI Cables and Connectors 15 Appendix B: Warranties and R etur n Po licy Glossar y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247[...]

Figures 17 Figures Figure 2-1. Example of Disk Stripin g . . . . . . . . . . . . . . . . 33 Figure 2-2. Examp le of Disk Mirroring . . . . . . . . . . . . . . . 34 Figur e 2-3. Ex ample of Disk Spanning . . . . . . . . . . . . . . . . 35 Figur e 2-4. E xampl e of Pari ty . . . . . . . . . . . . . . . . . . . . 37 Figure 3-1. RAID 0 Array . . . . . [...]

18 Figures[...]

T ables 19 T ables Table 1-1. Max imum Cabl e Length for SCSI S tandar ds . . . . . . 26 Table 1-2. SCSI Bus Widths a nd Maximum Through put . . . . . . 27 Table 2-1. Spa nning fo r RAID 10 and RAI D 50 . . . . . . . . . . 36 Table 2-2. Types of Parity . . . . . . . . . . . . . . . . . . . . . 36 Table 2-3. SCSI Drive States . . . . . . . . . . . .[...]

20 T ables Table 6-3. Hardware Architecture Fe atures . . . . . . . . . . . . . 76 Table 6-4. Array Perform ance Fe atures . . . . . . . . . . . . . . 76 Table 6-5. Fault T oleranc e Features . . . . . . . . . . . . . . . . 77 Table 6-6. Software Utilities . . . . . . . . . . . . . . . . . . . . 78 Table 6-7. PERC 3/QC Specifi cations . . . . . . .[...]

T ables 21 Table 9-6. J13 Dirty C ache LED Pinout . . . . . . . . . . . . . . 124 Table 9-7. J14 SCSI Activity Pinout . . . . . . . . . . . . . . . . 124 Table 9-8. J 16 and J1 8 TERMPW R Ena ble Set ting s . . . . . . . 124 Table 9-9. J1 7 I2C Conn ector Pi nout . . . . . . . . . . . . . . . 125 Table 9-10 . Target IDs for SCSI D evices . . . . . [...]

22 T ables Table 12-9 . Rebuild Typ es . . . . . . . . . . . . . . . . . . . . 201 Table 13-1. G eneral P roble ms and Sug gested S olutio ns . . . . . . 20 4 Table 13-2. BIOS Boot Error Message s . . . . . . . . . . . . . 205 Table 13-3. Other BIOS Error Messages . . . . . . . . . . . . . 20 8 Table 13-4 . Other Potential P roblems . . . . . . . .[...]

SECTION 1 Over view PERC 3 Overview PERC 3 Features[...]

24 Overview www .dell .com | support. dell.co m PERC 3 Overview The Dell™ P owerEdge™ Expandable R AID Controller 3 (PERC 3) PCI card is a high-performance, inte lligen t perip heral comp onent in terconnect (PCI)-to- SCSI host adapter w ith RAID control capa bilities . PERC 3 provides system availability , high performance, and fault-tolerant [...]

Over view 25 • T wo internal and four external connectors for the PER C 3/QC, tw o internal and two external connect ors for the PERC 3/D C and PERC 3/DCL, and one internal and one e xternal connector for the PERC 3/SC • R AID levels 0 ( striping), 1 ( mirrori ng), 5 (distribut ed parity), 10 (combination of striping and mirroring), and 50 (com[...]

26 Overview www .dell .com | support. dell.co m PERC 3/SC has one ultra-high-density 68-pin externa l connector for the external storag e subsys tem and one high-density 68-pin i nternal c onnector . Single-Ende d and L VD SCSI Buses The SCSI st andard defines t wo electrical buses: a single-ended bu s and an L VD bus. PE RC 3 s upports both sta nd[...]

Over view 27 Operating Syste m Support PERC 3 supports the follow ing operat ing syst ems: •M i c r o s o f t ® Wi n d o w s ® 2000: Server , Advanced Server , Small Business Server •M i c r o s o f t W i n d o w s N T ® 4: Server , T erminal Server , Ente rprise Server , Small Business S erver • Microsoft NET : Server , Advanced Server ?[...]

28 Overview www .dell .com | support. dell.co m[...]

SECTION 2 Introduction to RAID RAID Definition PERC 3 Host-Based RAID Soluti on Component s and Feature s[...]

30 Introd ucti on to RAID www .dell .com | support. dell.co m RAID Definition R AID is an array of multiple independ ent hard disk drives that pr ovides high performance and fault tolerance. The R AID array appears to the host computer as a single storage unit or as mult iple logical units. Input /output (I/O) imp roves because severa l disks can b[...]

Introduction to R AID 31 • The number of SCSI channels and SCSI hard drives Components and F eatures R AID versions, or levels, are specifications that describe a system for ensuring the availability and stability o f data stor ed on larg e disk subsystems. A R AID system can be impl ement ed in a number of di fferent levels). PE RC 3 supp orts R[...]

32 Introd ucti on to RAID www .dell .com | support. dell.co m A hot spar e is an unused online disk th at, in case of a di sk failure in a re dundant RAID ar ray , can be used to r ebuild the data and re-estab lish r edunda ncy . Afte r the h ot spar e is aut omatica lly move d into the RA ID subsystem , the failed drive is automatically rebuilt on[...]

Introduction to R AID 33 Figure 2-1. Example of Disk Striping Stripe Width Stripe width i s the number of disks involved i n an array wher e striping is implemente d. F or e xample, a fo ur -disk array wit h disk stripi ng has a st ripe width of four . Stripe Size The stri pe size is the length of th e interleaved data segme nts that PE RC 3 writes[...]

34 Introd ucti on to RAID www .dell .com | support. dell.co m Disk Mir roring W ith mirroring (used in R AID 1), data written t o one disk is simultaneously written to another disk. If one disk fa il s, the contents of the ot her disk can be used to run the system and reconstruct the failed disk. The primary advantage of disk mirroring is that it p[...]

Introduction to R AID 35 Disk Spannin g Disk spanning allows multiple physical drives to function lik e one big drive. Spanning overcomes lack of disk space and simplifies storage managemen t by combining exis ting resources or adding r elatively ine xpensive resources. F or exam pl e, fo ur 20 GB dri ves can be c omb ine d to a pp ear to t he op e[...]

36 Introd ucti on to RAID www .dell .com | support. dell.co m Spanning for RAID 10 or RAID 50 T able 2-1 describes how to configur e RAID 1 0 and R AID 50 by spanning. NOTE: Spa nning tw o contig uous RA ID 0 logical d rives does no t produce a new RAID level or add fa ult tolera nce. It does increase the size of the logical volume and improves p e[...]

Introduction to R AID 37 Figure 2-4. Examp le of Parity Hot Spares A hot spar e is an extra, unus ed disk drive that is part of the disk subsystem. It is usua lly in standby mode, r e ady for ser vice if a drive fai ls. Hot spar es permit you to replace failed drives withou t system shutdo wn or user interventi on. PERC 3 impleme nts auto matic a n[...]

38 Introd ucti on to RAID www .dell .com | support. dell.co m NOTE: R efer to Chapter 11 "PER C 3 BIOS Config uratio n Utility " for the procedu res used to designa te a driv e as a hot spare. There are two types of hot spares: • Global Hot Spare • Dedi cated Hot S pare Global H ot Spare A global hot spare drive can be used to replace[...]

Introduction to R AID 39 Rebuilding can be done only in arrays with data redundancy , whic h includes as R AID 1, 5, 1 0 and 50. A hot spar e can be used to r ebuild disk drives in R AID 1, 5, 10, or 50 systems. If a hot spare is not available, the failed disk drive must be r eplaced with a new disk dri ve so that the data on the failed driv e can [...]

40 Introd ucti on to RAID www .dell .com | support. dell.co m Logi cal Drive State s The logical drive states are listed in T able 2-4. Enclosure Manag ement Enclosure management is the intelligen t m onitori ng of t he disk subsys tem by softwar e and/or hard ware. The disk subsystem can be part of the host computer or separate from it. En closure[...]

SECTION 3 RAID L evels Over view Selecti ng a RAID Level RAID 0 RAID 1 RAID 5 RAID 10 RAID 50[...]

42 RAID Levels www .dell .com | support. dell.co m Over view Ther e are s ix official R AID levels (RAID 0 through R AID 5.) PER C 3 supports R AID levels 0, 1, 5, 10, and 50. The RA ID levels that PER C 3 supp orts are sho wn in T ab le 3-1 . PERC 3 al so supports independent drives (configur ed as R AID 0.) Selecting a RAID L evel T o ensur e the[...]

RA ID Levels 43 RAID 0 R AID 0 provides disk striping across all drive s in the R AID subsystem. R AID 0 does not provide any data redundancy , but does offer t he best performance of any RA ID level. R AID 0 br eaks up data into s maller blocks and then writes a block to each drive in the a rray . The size of ea ch block is determin ed by th e str[...]

44 RAID Levels www .dell .com | support. dell.co m F igure 3-1 displays an e xample of a R AID 0 array . Figure 3-1. RAID 0 Array Segment 1 Segment 5 Segment 7 Segment 2 Segment 6 Segment 10 Segment 3 Segment 7 Segment 11 Segment 4 Segment 8 Segment 12[...]

RA ID Levels 45 RAID 1 In R AID 1, the R AID controller duplicates al l data from one drive to a second drive. R AID 1 provides complete data r edundancy , but at the cost of doubling the required data st orage cap acity , as shown in F igure 3-2. T abl e 3- 3 provides an overview o f R AID 1. T able 3-3. RAID 1 Overview Uses Use R AID 1 for small [...]

46 RAID Levels www .dell .com | support. dell.co m Figure 3-2. RAID 1 Array RAID 5 R AID 5 includes disk str iping at the block level and pa rity . In R AID 5, the parity informati on is written to sev eral drives. R AID 5 is be st suited for networks that perform a lot of small input /output (I/O) transactions simu lt aneo usly . R AID 5 addresses[...]

RA ID Levels 47 T able 3-4. RAID 5 Overview Uses RAID 5 provides high data throughput, especially for larg e files. Use R AID 5 for transaction process ing applications because each drive ca n read and write ind epen dent ly . If a d rive f ail s, PE RC 3 uses the par ity dri ve to recreate all m issin g in form at ion. Use a lso f or office automa[...]

48 RAID Levels www .dell .com | support. dell.co m F igure 3-3 displays an e xample of a R AID 5 array . Figure 3-3. RAID 5 Array RAID 10 RAID 10 i s a c omb inat io n of RAID 0 and RAID 1. RAI D 10 has m irro red drives. R AID 10 br eaks up data into smaller block s, and then mirrors the blocks of data t o each R AID 1 R AID set. Each R AID 1 R AI[...]

RA ID Levels 49 T able 3-5. RAI D 10 Overview Uses RAID 10 works b est for data st orage that nee ds 100% redundancy o f mirrore d arrays and that al so needs the enhanced I/O performance of RAID 0 (striped arrays.) R AID 10 works well for medium-sized da tabases or any environment that requir es a higher degree of fault tolerance and moderate to m[...]

50 RAID Levels www .dell .com | support. dell.co m Figure 3-4. RAID 10 Array RAID 50 R AID 50 provides the features of both R AID 0 and RAID 5. RA ID 50 i n c l u d e s b o t h p a r i t y a n d d i s k s t r i p i n g a c r o s s mu l t i p l e d ri v e s . RA I D 5 0 is b e s t implemented on two RAID 5 disk arrays with data st riped acr oss both[...]

RA ID Levels 51 R AID 50 can sustain one to four drive failur e s while maint aining data integrit y if each failed disk is in a differ ent R AID 5 array . T able 3-6 pro vides an overview of RAID 50. T able 3-6. RAI D 50 Overview Uses RA I D 5 0 w o r k s b e s t w h e n u s e d w i t h d a t a t h a t r e q u i re s high reliability , high reques[...]

52 RAID Levels www .dell .com | support. dell.co m F igure 3-5 disp lays an ex ample of a R AID 50 array . Figure 3-5. RAID 50 Array Segment 1 Segment 6 P arity (9-1 0) Disk 1 Disk 2 Disk 3 Disk 4 Disk 5 Disk 6 Data Fl ow RAID 5 RAID 5 Segment 2 P arit y (5-6) Segment 9 P ari ty (1-2) Segment 5 Segment 10 Segment 3 Segment 8 P arit y (11-12) Segmen[...]

SECTION 4 PERC 3/SC F eatures Hardware Re quirements Config uration Feature s Hardware Ar chitecture Features Array Perf ormance Features PERC 3/SC Fault Tole rance Features Softw are Uti lities Operatin g System S oftware Driver s PERC 3/SC Specificatio ns[...]

54 PERC 3/SC Features www .dell .com | support. dell.co m Hardware R equirements PER C 3/SC has one SCSI) channel that supports 160M and W ide SCSI at data tra nsfer rates up to 160 MB/s. The S CSI channel s upports up to 15 W ide dev ices or up to seven narrow devices. PER C 3/SC can be inst alled in a Dell™ P owerEdge™ comp uter with a mother[...]

PERC 3/SC F eatures 55 SMART T echnology The PERC 3/S C self-mo nitoring analysis and repo rting technology (SMAR T) detects predictable drive failures. SMAR T monito rs the internal performance of all motors, heads , and drive electronics. Configurati on on Disk Conf iguration NOTE: Configu ration on Disk does no t work if you change bo th the ada[...]

56 PERC 3/SC Features www .dell .com | support. dell.co m Hardware Architecture F eatures The PERC 3/SC hardware architecture featur es are shown in T a ble 4-3. Array P er formance F eatures The PERC 3/SC array performance featur e s ar e shown in T able 4-4. User-specified rebuild rate Y es T able 4 -3. Hardwa re Ar chit ectur e F e atur es Speci[...]

PERC 3/SC F eatures 57 PERC 3/SC F ault T olerance F eatures The PERC 3/SC fault tolerance fea tures are shown in T able 4-5. Software Utilities The PER C 3/SC softw are uti lities ar e shown in T able 4-6. Maximum sc atter/gat hers 26 eleme nts Maxi mum siz e of I/ O re quests 6.4 MB in 64 KB strip es Maximum q ueue tags per d rive As many a s the[...]

58 PERC 3/SC Features www .dell .com | support. dell.co m Operating System Software Drivers Operat ing Sy stem D rivers PE RC 3/S C in cl udes a d is k op era tin g system (DOS) softw are configurati on utility and driv ers for Microsoft ® Wi n d o w s N T ® V4.0, W indows ® 2000, Novell ® NetW are ® 5. x , 6. x , and Red Hat Linux 7. x . PERC[...]

PERC 3/SC F eatures 59 PCI Bridge/CPU PER C 3/SC uses the Intel i960RM PCI bridge with an em bedded i960RM RISC processor running at 100 MHz. The RM bridge handles data transfers betwe en the pri mary (host) PCI bus , the secon dary PCI bus, cach e memo ry , and the SCSI bus. The DMA controller supports chaining and unaligned data transfers. The em[...]

60 PERC 3/SC Features www .dell .com | support. dell.co m PERC 3/SC BIOS The BIOS resides on a 1 MB × 8 flash ROM for easy upgrade. The PERC 3/SC B IOS su pports INT 13 h calls to b oot DO S witho ut spec ial so ftware or device drivers. The PERC 3/SC BIOS provides an extensiv e setup utility that can be accessed b y pressing <Ctrl> <M>[...]

PERC 3/SC F eatures 61 SCSI Fir mware The PERC 3/SC firmwar e handles all R AID and SCSI command processing and also s upports the fe atures sho wn in T able 4-8. RAID Management R AID management is provided by so ft ware utilities that manage and configure the R AID system and PERC 3/SC, create and manage multiple disk arrays, control and monitor [...]

62 PERC 3/SC Features www .dell .com | support. dell.co m Dell Manager Dell Manager i s a character -based, non-GUI utility that changes policies and parameters, and monitors RAID systems. Dell Manager runs under Novell NetW are 5. x , 6 . x , and Red Hat Linux 7. x . See Chapter 1 2 "D ell Mana ge r" f or ad dit ion al in for mat ion. W [...]

SECTION 5 PERC 3/DC and PERC 3/DCL F eatures Hardware Re quirements Config uration Feature s Hardware Ar chitecture Features Array Perf ormance Features Fault To lerance Features Softw are Uti lities Operatin g System S oftware Driver s PERC 3/DC and PERC 3/DCL Specification s[...]

64 PERC 3/DC and PERC 3/DCL F eatures www .dell .com | support. dell.co m Hardware R equirements NOTE: The PER C 3/DC has a bat ter y op tion, while the PER C 3/DCL does not have a ba tter y option. PERC 3/DC an d PERC 3/DCL hav e two SCSI channels that sup port 16 0M and W ide SCSI at data transfer rates up to 160 MB /s. The SCSI channel supports [...]

PERC 3/DC and PER C 3/DCL Features 65 SMART T echnology The PE RC 3/DC and PERC 3/DC L self-mo nitori ng an alysis and repo rtin g technol ogy (SMA R T) dete cts predicta ble drive fai lures. SMAR T moni tors the internal performance of all motors , heads, and drive electronics. Configurati on on Disk NOTE: Configu ration on Disk does no t work if [...]

66 PERC 3/DC and PERC 3/DCL F eatures www .dell .com | support. dell.co m Hardware Architecture F eatures T able 5-3 dis plays the P ERC 3/ DC and PER C 3/DCL har d war e architect ure features. More t han 200 qtags per array Y e s Hardware cluster ing sup port on th e board Y es User -spec ified rebuild rat e Y es T able 5-3. Hardwa re Architectur[...]

PERC 3/DC and PER C 3/DCL Features 67 Array P er formance F eatures T a ble 5-4 d ispl ays the PE RC 3/DC and PERC 3/ DCL a rray pe rforma nce featur es. F ault T olerance F eatures T able 5-5 lists the fault tolerance featur es. T able 5-4. Array Performance F eatures Specification F eature Host d ata tra nsfer rate 53 3 MB/s Drive data t ransfer [...]

68 PERC 3/DC and PERC 3/DCL F eatures www .dell .com | support. dell.co m Software Utilities T a ble 5- 6 list s the softwa re utili ties. Operating System Software Drivers PERC 3/DC a nd PERC 3/DC L in clude a Dis k Ope rating System (DOS ) software configuration utility and dri vers for Microsoft ® Wi n d o w s N T ® V4.0, W indows ® 2000, N o[...]

PERC 3/DC and PER C 3/DCL Features 69 PCI Bridge/CPU Both PE RC 3/DC and PE RC 3/DCL use the I ntel i960 RN PCI bridge with an embedded i960RN RIS C processor running at 100 M Hz. The RN bridge handles data transf ers betw een the prim ary (hos t) PCI bu s, the secon dary PCI bus, cache memory , and the SCSI bus. The DMA controller supports chainin[...]

70 PERC 3/DC and PERC 3/DCL F eatures www .dell .com | support. dell.co m Cache Memory Either 64 MB or 128 MB of PER C 3/DC and PER C 3/DC L cache memory r eside in a memory bank that uses a 64 MB or 128 MB SDR AM DIMM. PERC 3/DC a nd PERC 3/DC L sup port wri te-th rough or w rite- back caching, selectable for each logical dri ve. T o improve perfo[...]

PERC 3/DC and PER C 3/DCL Features 71 SCSI Connector s The PERC 3/DC a nd PERC 3/DC L adap ter has two types of SCSI connectors: • T wo 68-pin high density internal connectors • T wo 68-pin external ultra-high-density connecto rs Only one connector ty pe can be used for the SCSI channel at any one time. SCSI T ermination PERC 3/DC and PE RC 3/D[...]

72 PERC 3/DC and PERC 3/DCL F eatures www .dell .com | support. dell.co m RAID Management R AID management is provided by so ft ware utili ties that manage and conf igur e the R AID syst em and PERC 3/DC a nd PER C 3/DCL, c rea te a nd manage multiple disk arrays, control and moni tor multiple R AID servers, provide error statistics logging, and pr[...]

SECTION 6 PERC 3/QC F eatures Hardware Re quirements Config uration Feature s Hardware Ar chitecture Features Array Perf ormance Features Fault To lerance Features Softw are Uti lities Operatin g System S oftware Driver s PERC 3/QC Specificatio ns[...]

74 PERC 3/QC Features www .dell .com | support. dell.co m Hardware R equirements PERC 3/QC is a high-performance intelligent p eripheral component interconnect (PCI)-to-SCS I host ada pter with R AID control capabil ities. PER C 3/QC has four SCSI channels that support 1 60M and W ide SCSI at data transfer rat es up to 160 MB/s . Each SCSI channel [...]

PERC 3/QC F eatures 75 NOTE: The PERC 3/QC does not support cluste ring. SMART T echnology The PER C 3/QC self -monitoring analysis and r eporting technology (SMAR T) detects predictable drive failures. SMAR T monito rs the internal performance of all motors, heads , and drive electronics. Configurati on on Disk NOTE: Configu ration on Disk does no[...]

76 PERC 3/QC Features www .dell .com | support. dell.co m Hardware Architecture F eatures T able 6 -3 lists the PERC 3/QC hardware architecture featur es. Array P er formance F eatures T able 6 -4 lists the array performance fea tures. User -spec ified rebuild rat e Y es T able 6-3. Hardwa re Architecture F eatures Specification F eature Processor [...]

PERC 3/QC F eatures 77 F ault T olerance F eatures The fault tolerance features are listed in T able 6- 5. Software Utilities The softwar e utilities ar e listed in T able 6-6. Drive data t ransfer rate 160 MB/s Maximum sc atter/gat hers 26 eleme nts Maxi mum siz e of I/ O re quests 6. 4 MB in 6 4 KB st ripes Maximum q ueue tags per d rive A s many[...]

78 PERC 3/QC Features www .dell .com | support. dell.co m Operating System Software Drivers PER C 3/QC includes a DOS soft ware configuration ut ility and drivers for Microsoft ® Wi n d o ws NT ® 4.0, W indows ® 2000, Novell ® NetW are ® and Red Hat Linux. PERC 3/QC Specifications The P ER C 3/QC s peci ficatio ns ar e li sted i n T able 6-7. [...]

PERC 3/QC F eatures 79 PCI Bridge/CPU PERC 3/QC uses the I ntel i960 RN PCI b ridge with a n embedded i960 RN RISC processo r running at 100 MHz. Th e RN bridge handles data transf ers betwe en the pri mary (host) PCI bus , the secon dary PCI bus, cach e memo ry , and the SCSI bus. The DMA controller supports chaining and unaligned data transfers. [...]

80 PERC 3/QC Features www .dell .com | support. dell.co m PERC 3/QC BIOS The BIOS resides on a 1 MB × 8 flash ROM for easy upgrade. The PERC 3/Q C BIO S supp orts INT 13 h cal ls to boot DOS w ithou t spe cial soft ware or device drivers. The PERC 3/QC BIOS provi des an extensive setup utility that can be accessed b y pressing <Ctrl> <M&g[...]

PERC 3/QC F eatures 81 SCSI Fir mware The PER C 3/QC firmwar e handles all R AID and SCSI command processing and supports the featur es described in T able 6-8. RAID Management R AID management is provided by so ft ware utilities that manage and configure the R AID system and PERC 3/QC , create and manage multiple disk arrays, control and monitor m[...]

82 PERC 3/QC Features www .dell .com | support. dell.co m Dell Manager Dell Manager i s a character -based, non-GUI utility that changes policies, and parameters, and monitors RAID systems. Dell Manager runs under Novell NetW are 5. x , 6 . x , and Red Hat Linux 7. x . See Chapter 1 2 "D ell Mana ge r" f or ad dit ion al in for mat ion. W[...]

SECTION 7 Configuring PERC 3 Configuri ng SCSI Physical Drives Current Con figurat ion Logical Drive Configu ration Phys ical D evice Layou t Config uring Arrays Config uration Strate gies Assignin g RAID Levels Config uring Logical Dr ives Optimizi ng Data Storage Planning th e Array Configura tion Random Array Dele tion[...]

84 Configuring PERC 3 www .dell .com | support. dell.co m Configuring SCSI Physical Drives Physical S CSI drives must be or ganized into logical drives. The arrays and logical drives that you construct must be abl e to support the RAID) level that you select. Observe the followi ng guidelines when conn ecting and configuring SCSI devices in a RAID [...]

Configuring PER C 3 85 Use T able 7-2 to list the devices that you assig n to each SCSI ID for SCSI Channel 1. 8 9 10 11 12 13 14 15 T able 7-2. Cur rent Configur ation for SCSI Channel 1 SCSI ID Device Description SCSI Channel 1 0 1 2 3 4 5 6 8 9 10 11 12 T able 7-1. Cur rent Configur ation for SCSI Channel 0 (continued) SCSI ID Device Description[...]

86 Configuring PERC 3 www .dell .com | support. dell.co m Use T able 7-3 to lis t the devices that you ass ign to each SCSI ID for SCSI Channel 2. 13 14 15 T able 7-3. Cur rent Configur ation for SCSI Channel 2 SCSI ID Device Description SCSI Channel 2 0 1 2 3 4 5 6 8 9 10 11 12 13 14 15 T able 7-2. Cur rent Configur ation for SCSI Channel 1 (conti[...]

Configuring PER C 3 87 Use T able 7-4 to list the devices that you assig n to each SCSI ID for SCSI Channel 3. L ogical Drive Configuration Use T able 7-5 to list the details for each logical drive that you configure. T able 7-5. Logical Drive Configuration T able 7-4. Cur rent Configur ation for SCSI Channel 3 SCSI ID Device Description SCSI Chann[...]

88 Configuring PERC 3 www .dell .com | support. dell.co m LD2 LD3 LD4 LD5 LD6 LD7 LD8 LD9 LD10 LD11 LD12 LD13 LD14 LD15 LD16 LD17 LD18 LD19 LD20 LD21 LD22 LD23 LD24 LD25 LD26 LD27 LD28 LD29 LD30 Logi ca l Drive RAID Stripe Size Logi ca l Drive Size Cach e Polic y Re ad Polic y Write Polic y # of Physic al Drives[...]

Configuring PER C 3 89 Physical Device L ayout Use T able 7-6 to list the details for each physical device on the channels. LD31 LD32 LD33 LD34 LD35 LD36 LD37 LD38 LD39 Logi ca l Drive RAID Stripe Size Logi ca l Drive Size Cach e Polic y Re ad Polic y Write Polic y # of Physic al Drives T able 7-6. Physical Device Layout Channel 0 Chann el 1 Channe[...]

90 Configuring PERC 3 www .dell .com | support. dell.co m Device type Lo gical drive number/ Drive numb er Manufacturer/Model number Fi r m w a r e l e v e l Ta r g e t I D Device type Lo gical drive number/ Drive numb er Manufacturer/Model number Fi r m w a r e l e v e l Ta r g e t I D Device type Lo gical drive number/ Drive numb er Manufacturer/[...]

Configuring PER C 3 91 Manufacturer/Model number Fi r m w a r e l e v e l Ta r g e t I D Device type Lo gical drive number/ Drive numb er Manufacturer/Model number Fi r m w a r e l e v e l Ta r g e t I D Device type Lo gical drive number/ Drive numb er Manufacturer/Model number Fi r m w a r e l e v e l Ta r g e t I D Device type Lo gical drive numb[...]

92 Configuring PERC 3 www .dell .com | support. dell.co m Configuring Arrays Connect the physical drives to the R A ID controller , configure the disks, then initialize them. PER C 3 supports up to 40 arrays. An array is a group of physical disk drives. An array can consist of one to 32 physical disk drives (256 drives when used with t he span feat[...]

Configuring PER C 3 93 Arranging Arr ays Y ou m ust ar range the arrays to prov ide additi onal organizati on for t he drive array . Y ou must arrange arrays so that y ou can create system driv es that can function as boot devices. Y ou can sequentially arrange arrays with an identical number of drives so that the drives in the group are spanned. S[...]

94 Configuring PERC 3 www .dell .com | support. dell.co m Maximizing Capaci ty R AID 0 achieves m aximum drive capacity , but do es not provide da ta re dundancy . Maximum drive capacity for each RAID level is shown below . original equipment manufacturer (OEM) le vel firmwar e that can sp an up to four logical drives is assumed. T able 7-7 display[...]

Configuring PER C 3 95 Maximizing Dri ve Performance Y ou can con figur e an array for op timal performance; however , optimal drive configuration for one type of applicat ion will probably not be optimal for any other applicat ion. A basic guideline of the performance characte ristics for R AID drive arrays at each RAID level i s shown in T able 7[...]

96 Configuring PERC 3 www .dell .com | support. dell.co m Configuring L ogical Drives After yo u have instal led the PERC 3 contro ller in the server and have attached all physical disk drives, pe rform the following steps to p r epare a R AID disk array : 1 Optimize t he PERC 3 controller options for your system. 2 P ress <Ctrl> <M> to[...]

Configuring PER C 3 97 Servers that s upport Vide o on Demand typi cally read the data ofte n, but write data infrequently . Both the read and write operations tend to be long. Data stored on a general-purpose file server involves relatively short r ead and write operations with relatively smal l files. Array F unctions Y ou must first define the m[...]

98 Configuring PERC 3 www .dell .com | support. dell.co m Using the Array Configu ration Planner T able 7-12 lists R AID levels, fault tole rance, and effective capacit y for some possible driv e configurations for an a rra y consisting of one to 32 drives. This table does not ta ke into account any hot s pare (standby) drives. Y ou should always h[...]

Configuring PER C 3 99 R andom Array Deletion The PERC controllers support random a rray deletion, which is the ability to delete any unwanted logical drives and use that space for a new logica l drive. This section describes the impact of random array deletion from the user perspective. It discusses the co nfiguration module architecture modificat[...]

100 Configuring PERC 3 www .dell .com | support. dell.co m NOTE: When a ‘ delete’ request reaches the operating sy stem driver , the driver stops al l the r unning input/output (I/O) for other lo gical drives and proces ses the del ete request first. Norma l read/write o peration starts af ter the delete request is comp leted. After you d elete[...]

SECTION 8 PERC 3/SC Hardware Installation Requir ements PERC 3/SC Card Layout Insta llati on St eps[...]

102 PERC 3 /SC Hardware In stallatio n www .dell .com | support. dell.co m R equirements This chapter describes the installation pr ocedures for the PER C 3/SC board. Y ou must have the following: •A P E R C 3 / S C c o n t r o l l e r • A host computer with an ava ilable 5 V , 32- or 64-bit PCI expa nsion slot • The PERC 3 inst allati on dis[...]

PER C 3/SC Hardw are Install ation 103 PERC 3/SC Card L ayout F igure 8-1 shows t he PERC 3/SC car d, jumpers, and connectors. Figure 8-1. PERC 3/SC Card L ayout Installation Steps This section prov ides an overview of install ing the R AID controller . See the following sections for mor e information about each step. 1 Unpack the PER C 3/SC contro[...]

104 PERC 3 /SC Hardware In stallatio n www .dell .com | support. dell.co m 6 Connect the SCSI cable s to SCSI devices. Make sur e all cables are properly attached , and that the PERC 3/SC car d is properly i nstalled. 7 Set the ta rget IDs for the SCS I devices . 8 Replace the c omputer co ver and turn th e power on. Be su re the SC SI de vic es a [...]

PER C 3/SC Hardw are Install ation 105 Step 3—Set Jumpers Make sur e the jumpe r settings on the PERC 3/SC card are corr ect. The jumpers and connectors ar e shown in T able 8-1. J1 T ermination Enable J1 is a t hree-pin header that specifie s ha rdwa re or s of tware con tro l o f SC SI termination. The de fault is OPEN. Th e settings are shown [...]

106 PERC 3 /SC Hardware In stallatio n www .dell .com | support. dell.co m J9 I2 C Inte r face C onn ector J9 is a four -pin header that allows the i 960RM core pr ocessor to serve as a master and slave dev ice that resided on the I2C bus when used with the I2 C bus interface unit. Attach a four-wire cable from J9 to the I2 C Bus Interface Unit. T [...]

PER C 3/SC Hardw are Install ation 107 J8 Hard Disk LED J8 is a four -pin connector that attaches to a cable that connects to the hard disk light emitting diode (LED) mounted on the computer enclos ur e. The LED i ndicat es data tran sfers. T a ble 8-5 show s th e pinout for J8. J10 T erm Power J10 is a 2-pin jumper . The factory setting is pins 1-[...]

108 PERC 3 /SC Hardware In stallatio n www .dell .com | support. dell.co m J16, J17 RUBI Slot Inte rrupt Steering J16 a nd J17 a re 3-pi n jum pers. Y ou can sho rt them for a one-cha nnel or two- channel motherboard. The default is O PEN; the pins are not short ed. T able 8-7 shows t he settings for sho rting J16 and J17. Step 4—Set SCSI T ermin[...]

PER C 3/SC Hardw are Install ation 109 SCSI T ermination The SCSI bus is an electrical transmi ssion line and it must be terminate d properly to minimize re flections a nd losses. Y ou complet e the SCSI bus by setting termina tion at both ends. Y ou c an let PERC 3/SC automati cally pro vide SCSI terminati on at one end of the SCSI bus. Y ou can t[...]

110 PERC 3 /SC Hardware In stallatio n www .dell .com | support. dell.co m Figure 8-3. T ermination of Internal SCSI Disk Arrays T er mination Enabled ID2 ID0 – Bo ot Drive No T er mination ID1 – No T erm ination PERC 3/SC SCSI ID 7[...]

PER C 3/SC Hardw are Install ation 111 Step 5—Instal l PERC 3/SC Choose a 3.3 V or 5 V PCI slot and align the PERC 3/SC card bus connector to the slot. P ress down gently but firmly to make sure that the ca rd is properly seated in the slot. The bottom edge of the cont roller card s hould be flu sh wi th the slot . F i gure 8- 4 sho ws PCI slo ts[...]

112 PERC 3 /SC Hardware In stallatio n www .dell .com | support. dell.co m Insert the PER C 3/SC card i n a PCI slot, as shown in F igure 8-5. Screw the brack et to th e computer chassi s. Figure 8-5. Installation of PERC 3/SC Card into Motherboar d 32-bit Slots 64-bit Slots (3.3 V) (5 V) Edge of Mother Bo ard Bra c ke t Sc r e w[...]

PER C 3/SC Hardw are Install ation 113 Step 6—Connect SCSI Cables Connect the SCSI ca bles to SCSI devices, as shown in F igure 8- 6. PERC 3/SC provides two SCSI connectors: • J11, the SCSI channel internal high-density 68-pin connector for Wide (16-bit ) SCSI • J13, the SCSI channel external ultra high-density 68-pin connector for W ide (16-[...]

114 PERC 3 /SC Hardware In stallatio n www .dell .com | support. dell.co m P erform the following steps to connect SCSI devices: 1 Disa ble termi nation on any SC SI dev ice that does not sit at the end o f the SCSI bus. 2 Configure all SCSI devices to supply termination power (T ermPWR.) 3 Set prop er targe t IDs (TIDs) for a ll SCSI devices. Cabl[...]

PER C 3/SC Hardw are Install ation 115 The PERC 3/SC controller automatically occupies TID 7 in the SCSI channel. Eight-bit SCSI devices can us e the TIDs from 0 to 6 only . 16-bit devices can use the TIDs from 0 to 15. The arbitration priority for a SCSI device dep ends on its TID . T able 8-8 shows t he targ et IDs. NOTICE: Non-disk devices (CD-R[...]

116 PERC 3 /SC Hardware In stallatio n www .dell .com | support. dell.co m The PERC 3 BIOS Configuration Util ity pro mpt times out after several seconds. The PER C 3 host adapte r (controller) number , firmware versi on, and cache synchronized dynamic ra ndom access memory (SDRAM) size display in the s econd portion of the BIOS message. The number[...]

SECTION 9 PERC 3/DC or PERC 3/DCL Hardware Installation Requir ements PERC 3/DC Card Layout PERC 3/DCL Card Layout Insta llati on St eps Replacin g a PERC 3/DC Containing a BC Chip with a PERC 3/DC Containing a BE Chip[...]

118 PERC 3/ DC or PERC 3/ DCL Har dware Insta llation www .dell .com | support. dell.co m R equirements This chapter describes the installation pr ocedures for the PER C 3/DC, a nd PER C 3/DCL boar ds. It also contains the procedur e for replaci ng the PERC 3/DC that has a BC chip with a PE RC 3/DC tha t has a BE chip. Y ou must have the following:[...]

PERC 3/DC or PER C 3/DCL Hardware I nstallatio n 119 PERC 3/DC Card L ayout Figure 9-1. PERC 3/DC Card L ayout J7 Channel 0 Exter nal Ultra-High 68-pin SCSI Connector J2 J3 J4 Channel 0 Internal High-Density 68-pin SCSI Connector J5 Channel 1 Inter nal High-Density 68-pin SCSI Co nnector J16 J18 J19 J17 J13 J14 Density J15 Channel 1 Exter nal Ultra[...]

120 PERC 3/ DC or PERC 3/ DCL Har dware Insta llation www .dell .com | support. dell.co m PERC 3/DCL Card L ayout Figure 9-2. PERC 3/DCL Card L ayout Installation Steps The steps for installing the RAID controller ar e shown below . See the following pages for more in formation abo ut each step. 1 Unpac k the PE RC 3/DC or PE RC 3/DCL. 2 P ower off[...]

PERC 3/DC or PER C 3/DCL Hardware I nstallatio n 121 7 Connect SCSI devices. 8 P ower on the ho st system. 9 R un the BIOS Configuration Uti lity or the W ebBIOS Configuration Utility . 10 Install th e operating syst em softwar e driver . Step 1—Unpack the PERC 3/DC or PERC 3/DCL Unpack and install the hardware in a static-free environment. Remov[...]

122 PERC 3/ DC or PERC 3/ DCL Har dware Insta llation www .dell .com | support. dell.co m J2, and J3 T ermination Enable J2, and J3 ar e 3-pin connectors that set the SCSI terminati on for each SCSI channel. The default is OPEN. T able 9-2 displays the termination enable setti ngs. J9 Onboard BI OS Enable J9 is a 2-pin connector tha t enables or di[...]

PERC 3/DC or PER C 3/DCL Hardware I nstallatio n 123 J10 NVRAM Clea r J10 is a 2-pin connector used to clear the memory from the NVRAM, which stor es RAID configuration information. T able 9-4 displays the pinout for J10. J11 Serial P ort J11 is a 3- pin header that attaches to a serial cabl e. T able 9-5 and F igure 9-3 display the pinout. Figure [...]

124 PERC 3/ DC or PERC 3/ DCL Har dware Insta llation www .dell .com | support. dell.co m J14 SCSI Act ivity LED J14 is a four-pi n connector for an LE D mounted on the computer enclosure. T able 9 -7 displays the J14 pinout. J16 and J18 TERMPWR Enable J16, an d J18 are 2-pin co nnectors th at en able te rminat ion pow er to the SCSI bus for e ach [...]

PERC 3/DC or PER C 3/DCL Hardware I nstallatio n 125 J17 I2C Connecto r J17 is a 4-pin hea der . T able 9-9 displa ys the J17 p inout. Step 4—Set SCSI T ermination Each PER C 3/DC or PERC 3/D CL SCSI channel can be individually configur ed for termination enable mode by setting the J2 and J3 jumpers. Y o u must term inate th e SCSI bus properl y [...]

126 PERC 3/ DC or PERC 3/ DCL Har dware Insta llation www .dell .com | support. dell.co m Figure 9-4. T ermination of Internal SCSI Disk Arrays for PERC 3/DC and 3/DCL F or a disk array , set SCSI bus t ermination so that removing or a dding a SCSI device does not disturb termin ation. The connectors between the two ends of the channel can connect [...]

PERC 3/DC or PER C 3/DCL Hardware I nstallatio n 127 Figure 9-5. Installation of the PERC 3/DC and 3/DCL 64-bit Slots (5 V) Edge of Mother Bo ard Bracket Screw 32-bit Slots (5 V)[...]

128 PERC 3/ DC or PERC 3/ DCL Har dware Insta llation www .dell .com | support. dell.co m Step 6—Sel ect and Set T arget IDs for SCSI Device s Set target identifiers (TIDs) on the SCSI devices. Each device i n a specific SCSI channel must have a unique TID in that channel. See the documentation for each SCSI device to set the TIDs. The PER C 3/DC[...]

PERC 3/DC or PER C 3/DCL Hardware I nstallatio n 129 Figure 9-6. Connecting SCSI Cables to PERC 3/DC and 3/DCL Connect SC SI Device s When connecting SCSI devices: 1 Disa ble te rmina tio n on any SCSI dev ice th at is not at the end of the SCSI bus. If the ca ble is terminated, do not terminate SCSI devices. 2 Configure all SCSI devices to supply [...]

130 PERC 3/ DC or PERC 3/ DCL Har dware Insta llation www .dell .com | support. dell.co m Step 8—P ower On Host System Replace the computer cover and reconnect the alternating curr ent (AC) power cords . P ower on the host computer . Ensure t hat all SCSI devices are connected, including SCSI and power cables. If the computer is po wered up befor[...]

PERC 3/DC or PER C 3/DCL Hardware I nstallatio n 131 Step 10—Install Oper ating System Software Driv er See the documentat ion for the PERC 3/DC or PERC 3/DCL opera ting systems dri ver for additional information about instal ling the drivers for W indow s NT , W indows 2000, Nov ell NetW are 5. x , 6. x , and Red Hat Linux 7. x . R ep lacing a P[...]

132 PERC 3/ DC or PERC 3/ DCL Har dware Insta llation www .dell .com | support. dell.co m 1 Upgrade the exi sting driver from 5.22.1 or 5.22.2 to 5.30 or later . 2 Shut down the machi ne in which you are going to replace the controller . 3 Replace the controller (using the p rocedures in this chapter .) 4 Boot to W indows. When you log into W indow[...]

SECTI ON 10 PERC 3/QC Hardware Installation Requir ements PERC 3/QC Card Layout Insta llati on St eps[...]

134 PERC 3 /QC Hardware In stallatio n www .dell .com | support. dell.co m R equirements This chapter describes the installation p rocedures for the PERC 3/QC board. Y ou must have the following: •A P E R C 3 / Q C c o n t r o l l e r • A host comput er with an availa ble 5 V , 32- or 64-bit perip heral component interconnect (PCI) expansion sl[...]

PER C 3/QC Hardw are Install ation 135 PERC 3/QC Card L ayout F igure 10- 1 displays the PER C 3/QC car d and jumpers. Figure 10-1. PERC 3/QC Card L ayout DIM M S ocke t J13 Channel 0/1 Exter nal J15 J16 J17 J18 J1 9 J20 (See List Abo ve) J16 Load Balancing J17 Dir ty Cache (Wri te P ending) LE D J18 Ser ia l EE PROM P or t J19 Onboard BIOS Enable [...]

136 PERC 3 /QC Hardware In stallatio n www .dell .com | support. dell.co m Installation Steps This section provides an ov erview of installing the R AID controller . See the following sections for mor e information about each step. 1 Unpack the PER C 3/QC controller and inspect for damage. Mak e sure all i tems are in the pa ckage. If damaged, call[...]

PER C 3/QC Hardw are Install ation 137 Step 2—P ower Down T urn off the computer and remove the cover . Mak e sure t he computer is turned off and disconnected from any networks before installing the controller . Step 3—Set Jumpers Make sur e the jumpe r settings on the PERC 3/QC card a re correct. T able 10-1 displays the jumpers and connector[...]

138 PERC 3 /QC Hardware In stallatio n www .dell .com | support. dell.co m J2, J3 , J5, a nd J7 T erm inati on E nable J2, J3, J5, and J7 are 3-pin connectors th at set the SCSI termination for each SCSI channel. The Dell default is termination alway s enabled (OPEN.) T able 1 0-2 displays the pinout. J9, J10, J11, and J12 TERMPWR Enable J9, J10, J[...]

PER C 3/QC Hardw are Install ation 139 J14 Serial P ort J14 att aches to a serial cab le. F igure 10- 2 and T able 10-4 show t he pinout for J14. Figure 10-2. J14 Serial P ort Diagram J17 Dirty Ca che LED J17 is a two-pin connector for an LED mounte d on the computer enclosur e. The LED indi cates when the data in the cache ha s yet to be wr itten [...]

140 PERC 3 /QC Hardware In stallatio n www .dell .com | support. dell.co m J23 Externa l Battery J23 is a 5- pin con nector th at attac hes to the o ptional ba ttery pack. T able 10 - 7 displays the J23 pinout. Step 4—Set SCSI T ermination Y ou must termina te the SCSI bus properly . Set termination at both ends of th e SC SI c ab l e . T h e S C[...]

PER C 3/QC Hardw are Install ation 141 Figure 10-3. Example of T ermination F or a disk array , set SCSI bus t ermination so that removing or a dding a SCSI device does not dist urb terminat ion. An easy way t o do this is to connect the PERC 3/QC car d to one end of the SCSI cable and to connect an external terminator module at the other end of th[...]

142 PERC 3 /QC Hardware In stallatio n www .dell .com | support. dell.co m T erminating Internal S CSI Disk Arrays Set the term ination so tha t SCSI termin ation and termi nation powe r are intact when any disk drive is r emoved from a SCSI channel, as shown in F igure 10-4. Figure 10-4. T ermination of Internal SCSI Disk Arrays ID2 ID0 No T e rmi[...]

PER C 3/QC Hardw are Install ation 143 Step 5—Install PERC 3/QC Choose a 3.3 V or 5 V PCI slot and align the PERC 3/QC bus connecto r to the slot. P ress down gently but firmly t o make sur e that the car d is properly seated in the slot. The bo ttom edge of the controller card should be flush with the sl ot. F igure 10-5 displa ys the PCI slots [...]

144 PERC 3 /QC Hardware In stallatio n www .dell .com | support. dell.co m Insert the PERC 3/Q C card into a PCI slot as shown in F igure 10 -6. Screw the bracket to the c omputer fra me. Figure 10-6. Installation of the PERC 3/QC Card 64-bit Slots (5 V) Edge of Mother Board 32-bit Sl ots (3.3 V) Brac ket Sc rew[...]

PER C 3/QC Hardw are Install ation 145 Step 6—Connect SCSI Cables Connect SCSI cables t o SCSI devices. PERC 3/QC provides two inte rnal SCSI connectors, J1 (channel 1) and J4 (channel 0 ), which are the SCSI channel internal high-density 68-p in connectors for W ide (16-bit) SCSI. PER C 3/QC provides four exte rnal SCSI connectors: J13 (channels[...]

146 PERC 3 /QC Hardware In stallatio n www .dell .com | support. dell.co m Cable Suggestions System throughput problems can occur if SCSI cable use is not maximized. Yo u s h o u l d : • Use cables up t o 12 meters for L VD devices. • F or single en ded SCSI devices, use t he shortest SCSI cables (no mor e than 3 meters for F a st SCSI, no mo r[...]

PER C 3/QC Hardw are Install ation 147 Firmware Initializing... [Scanning SCS I Device ...(etc.)... ] The fi rmwar e tak es sev eral secon ds to ini tialize . During this time the adapter wi ll scan the SCSI channel. Whe n ready , the foll owing appears: HA –0 (Bus 1 Dev 6) Type: PERC 3/QC Standard FW x.xx SDRAM= xxxMB Battery Module is Present o[...]

148 PERC 3 /QC Hardware In stallatio n www .dell .com | support. dell.co m[...]

SECTI ON 11 PERC 3 BIOS Configuration Utility Config uration On Disk Startin g the PERC 3 BIO S Configurat ion Utility BIOS Conf iguration Utility Menu Options Config uring Arrays and Logic al Drives Choosin g the Configurat ion Method Designat ing Drives as Hot Spares Using Easy Confi guration Using New Configur ation Using View/Add Configuratio n[...]

150 PERC 3 BIOS Co nfiguration Utility www .dell .com | support. dell.co m The PER C 3 BIOS Configuration Utilit y configure s disk arrays and logical drives. Because the utility r esides in the P ERC 3 BIOS, i ts operation is independent of the op erating systems on your comput er . This chapter describes the utility , and the configurat ion optio[...]

PERC 3 B IOS Configuration Utility 151 Press <Ctrl><H> to Enable BIOS F or each PERC adapter in the host system, the firmware v ersion, dynamic random access memory (DR AM) size, and the status of logical drives on the card display . If you do not press <Ctrl ><M> withi n a few sec onds of the prompt, the computer cont inues[...]

152 PERC 3 BIOS Co nfiguration Utility www .dell .com | support. dell.co m Configure Menu Choose Configure to select a met hod for configuring arrays and logical drives. T able 11-2 display s the configuration metho ds, clear configurati on option, and boot drive option. Obje cts Sele ct this opt ion to ind ividual ly acce ss contro llers, lo gical[...]

PERC 3 B IOS Configuration Utility 153 Init ialize Men u NOTE: Se e page 178 for procedures fo r initializing logical d rives. Choose In itiali ze from the BIOS Configuration Utility Ma nageme nt Menu to initial ize one or more log ical drives. P ress the space bar to select a single driver or the <F2> key to select all drives for initializat[...]

154 PERC 3 BIOS Co nfiguration Utility www .dell .com | support. dell.co m Disk Spin up Tim in gs Choose this option to set the method and timing for spin ning up the h ard disk dr ives. Cache F lush Tim in gs Cho ose this o ption to se t the cac he flus h interv al to once every 2 , 4 , 6 , 8 , or 10 seco nds. Th e default i s 4 . Reb uild Rate Us[...]

PERC 3 B IOS Configuration Utility 155 Cluster Mode a nd the Initiator ID Y ou can enable or disable cluster mode. When you disable cluster mode, the system operates in standard mode. In addition, wh en you enable cluster mode, the system autom atically disables the BIOS. Y ou can change the Initiator ID only when you ar e in cluster mode. Y ou can[...]

156 PERC 3 BIOS Co nfiguration Utility www .dell .com | support. dell.co m 4 Select Enabled to enabl e Vi r t u a l S i z i n g . After yo u have created a logica l drive set, the partiti on of the driv e should be as large as the virtual size of the logical drive. After you have cr eated a logical array set, the drive partition can be as lar ge as[...]

PERC 3 B IOS Configuration Utility 157 Channel Choose Objec ts— > Cha nnel to select a SCSI channel on the curr ently selected controller . After you select a channel, press <Enter> to display t he options for that channel. T able 11 -6 describes the SCSI channel menu options. Battery Information NOTE: The batter y information is v alid [...]

158 PERC 3 BIOS Co nfiguration Utility www .dell .com | support. dell.co m Re set Battery Char ge Counter Choose Objects— > Reset Battery Charge Counte r to reset the char ge cycle count. P erform the following steps to configure the char ge cycle: 1 When you f irst insta ll a batt ery pack, set the Charge Cycle to 0. 2 Select Reset Battery Ch[...]

PERC 3 B IOS Configuration Utility 159 Check Consiste ncy Menu Choose Check Consistency to verify the r edundancy data in logical drives that use R AID levels 1, 5, 10, and 50. The parameters of the existing logical drives appea r . Discrepancies are automa ticall y corrected, as suming always th at the da ta is cor rect. However , if the failure i[...]

160 PERC 3 BIOS Co nfiguration Utility www .dell .com | support. dell.co m 1 Choose a configuration method. 2 Designat e hot spar es (optional). 3 Cr eate arrays using the available physical drives. 4 Define logical drives using the space in the arrays. 5 Sav e the conf igu ratio n in fo rmat ion . 6 Init iali ze the new logi cal drive s. Choosing [...]

PERC 3 B IOS Configuration Utility 161 If you select New C onfiguration , the existing configuration infor m ation on the selected controller is destroyed when the new co nfigura tion is saved . View/Add Conf iguration V iew/Add Configur ation allows you to control the same logical drive parameters as Ne w Co nfig urati on without d isturbing the e[...]

162 PERC 3 BIOS Co nfiguration Utility www .dell .com | support. dell.co m Rese r ved Disk Space during Configura tion Up to 20.6 MB of disk space is r eserved when a hard dri ve is being configured. Designating Drives as Hot Spares Hot spar es are physi cal drives that are po wered up a long with the RAID drives and usually stay in a st andby stat[...]

PERC 3 B IOS Configuration Utility 163 3 P re ss the arrow k eys to select Make HotSp are and press <Enter>. The indicator for the selected drive changes to HO TSP . 4 Save the configuration. Using Easy Configuration In Easy Co nfig urat ion , each array is ass ociated with exa ctly one logical drive. P erform the follow ing steps to create a[...]

164 PERC 3 BIOS Co nfiguration Utility www .dell .com | support. dell.co m NOTE: T r y to use dr ives of the sam e capacity in a sp ecifi c array . If you use drives with d ifferent capa citie s in an arr ay , all drives i n the array are treated as if they have the capacity of the smallest drive i n the array . 3 P ress the arrow k eys to highl ig[...]

PERC 3 B IOS Configuration Utility 165 NOTE: Y o u can pr ess <F2> to display the number of d rives in the ar ray , the ir chan nel a nd ID, and <F 3> to display ar ray inf or mation, such as the stripes, slots, and free space. 8 P ress <F10> to config ur e logical driv es. The logical drive configuration screen appears. Span=Y es[...]

166 PERC 3 BIOS Co nfiguration Utility www .dell .com | support. dell.co m Stripe Size specifies the size of the segments written to each disk in a R AID 1 or 5 logical driv e. Y ou can set the stripe size to 2 KB, 4 KB, 8 KB, 16 KB, 32 KB, 64 KB, or 128 KB . A larger s tripe size produces better read performance, especially if your comp uter does [...]

PERC 3 B IOS Configuration Utility 167 – Direct I/O specifies that reads are not buffer ed in cache memory . Direct I/O does not override the cache p olicy settings. Dat a is transferre d to cache and the host concurrently . If the same data block is r ead again, it comes from cache memory . This is the default se tting. 15 P ress <Esc> to [...]

168 PERC 3 BIOS Co nfiguration Utility www .dell .com | support. dell.co m An array selection window displa ys the devices connected to the current control ler . Hot key informat ion ap pears at the bott om of the screen. The hot key functions ar e: – <F2> Display drive data and PERC 3 error count for the selected drive. – <F3> Disp[...]

PERC 3 B IOS Configuration Utility 169 – R AID 50 r e quir es at least six physical dri ves per array . 5 P ress <Ente r> after you finish creating the current array . A window entitled Select Co nfigurable Array(s) appears. It displays the array , and array number , such as A-00 . 6 P ress the spacebar to select the array . Span informatio[...]

170 PERC 3 BIOS Co nfiguration Utility www .dell .com | support. dell.co m The logical drive configuration screen appears. Span=Y es displays on this screen if you sel ect two or more arr ays to sp an. The window at the to p of the screen shows the logical drive that is currently being configur ed as well as any e xisting logical drives. The column[...]

PERC 3 B IOS Configuration Utility 171 the crite ria are not met, the sp an settin g makes no difference for the current l ogical drive. 12 Highlight a spanning option and pr ess <Enter>. 13 Set the lo gical drive size. 14 Move the cursor to Size and press <Enter>. By default, the logical drive size is set to all available s pace in the[...]

172 PERC 3 BIOS Co nfiguration Utility www .dell .com | support. dell.co m – No-Read-Ahead specifies that the contro ller does not use r ead- ahead for the current logical drive. – Read-ah ead specifie s that the control ler uses read-ahead for the current logica l drive. – Adaptive specifies that the controller begins using r ead-ahead if th[...]

PERC 3 B IOS Configuration Utility 173 Using View/Add Configuration V i ew/A dd C onf igur atio n allows you to associate logical drives with phys ical arrays (this is called spanning of arrays .) The ex istin g co nfig ura tio n is le ft intact, so you can also use V iew/Add Con figuration simpl y to loo k at the current configuration. P e rform t[...]

174 PERC 3 BIOS Co nfiguration Utility www .dell .com | support. dell.co m NOTE: T r y to use dr ives of the sam e capacity in a sp ecifi c array . If you use drives with d ifferent capa citie s in an arr ay , all drives i n the array are treated as if they have the capacity of the smallest drive i n the array . 3 P ress the arrow k eys to highl ig[...]

PERC 3 B IOS Configuration Utility 175 NOTE: Y o u can pr ess <F2> to display the number of d rives in the ar ray , the ir chan nel a nd ID, and <F 3> to display ar ray inf or mation, such as the stripes, slots, and free space. 8 P ress <F 10> to configure a logica l drive. The logical drive configuration screen appears. Span=Y es[...]

176 PERC 3 BIOS Co nfiguration Utility www .dell .com | support. dell.co m – CanSpan : Array spanning is enabled for the current logical drive. The logical drive can occupy space in more than one array . – NoSpan : Array spanning is disabled for the current logical dri ve. The logical drive can occupy space in only one array . PERC 3 sup ports [...]

PERC 3 B IOS Configuration Utility 177 –I n Wr i t e - b a c k caching, the controller sends a data transfer completion signal to the host w hen the controller cache has r eceived all the dat a in a transacti on. This setting is not recommended. –I n Wr i t e - t h r o u g h caching, the cont roller sends a data t ransfer completion si gnal to [...]

178 PERC 3 BIOS Co nfiguration Utility www .dell .com | support. dell.co m If space remains in the arrays, the nex t logical drive to be configured appears . 22 Repeat st eps 3 to 21 to create an array and configur e another logica l drive. If all array space is used , a list of the existing lo gical drives ap pears. 23 P ress any key to continue. [...]

PERC 3 B IOS Configuration Utility 179 Individua l Initializat ion 1 Choose Objec ts— > Lo gi ca l Dr i ve option from the Manag ement Menu . 2 Select the l ogical drive to be initiali zed. 3 Choose Initializ e from the ac tion m enu. Init iali zati on pro gress ap pear s as a bar graph on the screen . 4 When initialization comp letes, press a[...]

180 PERC 3 BIOS Co nfiguration Utility www .dell .com | support. dell.co m This deletes the logical drive and ma kes the space it occupied available for you to mak e another logical drive. F ormatting Physical Drives Y ou can do low-level formatting of SCSI drives using the BIOS Configuration Utility. Because most SCSI disk drives are low- level fo[...]

PERC 3 B IOS Configuration Utility 181 • Individu al F ormatti ng. Choose the Fo r m a t option from Obj ects — > Physica l Drive action menu for a phy sical drive. Batch F ormatting 1 Select For m a t from t he Managem ent Men u . A device selection window displays the devices connected to the current controller . 2 P ress the arrow keys to[...]

182 PERC 3 BIOS Co nfiguration Utility www .dell .com | support. dell.co m R ebuilding F ailed Disk Drives If a disk drive fails in an a rray that is configur ed as a R AID 1 or 5 logical drive, you can recover the lost data by rebuilding the drive. T able 1 1-10 describes t he types of reb uilds. Manual R ebuild – R ebuilding a n Individual Driv[...]

PERC 3 B IOS Configuration Utility 183 A device selection window displays the devices connected to the current controller . The failed drives have FA I L indicators. 2 P re ss the arrow k eys t o highlight a ny failed driv es to be r ebuilt., 3 P ress the spacebar to select the desired physical drives for r ebuild. 4 After you select the ph ysical [...]

184 PERC 3 BIOS Co nfiguration Utility www .dell .com | support. dell.co m 10 P ress <Esc> to exit the Advanced M enu . Y o u are prom pted to ac cept the settings . 11 Highlight Accept and press <E nter>. Do not initialize the logical drive. 12 P ress <Esc>. and choose Ye s at the Save promp t. 13 Exit the BIOS Configuration Util[...]

PERC 3 B IOS Configuration Utility 185 T o enab le har dwar e te rmin atio n, lea ve th e pin s op en. Th e def ault i s hard ware termination. Clustering NOTE: Clustering is n ot supp orted by PER C 3/QC, PER C 3/DCL or PER C 3/SC. It is sup ported by PER C 3/DC. Physically , a cluster is a grouping of two independe nt servers that can acce ss the[...]

186 PERC 3 BIOS Co nfiguration Utility www .dell .com | support. dell.co m After you start t he BIOS configuration utility , perfo rm the following step s to enable or disable the cluster mode: 1 Select Objects— > Adapter — > Cluster M ode . 2 Select Enable or Disable . After you se lect Disable or Enable , a dialog box displ ays for you [...]

SECTI ON 12 Dell Manager Startin g Dell Manager Dell Manager Menu Opt ions Designat ing Drives as Hot Spares Parameters Initia lizing Logi cal Drives Deleting Logi cal Drives (Ran dom Array Deleti on) Formatti ng Physical Drives Rebuildi ng Failed Disk Drives Exiting Dell Ma nager[...]

188 Dell Manager www .dell .com | support. dell.co m Starting Dell M anager Dell™ M anager is a characte r -based, non-GUI uti lity that chang es policies, and parameters, and monitors RAID systems. Dell Manager runs under Novell ® NetW are ® 5. x , 6. x , and Red Hat Linux 7. x . T o start Dell Manager from any directory , make sure the prog r[...]

Dell Manager 189 Management Menu Options T able 1 2-2 displays the options for the De ll Manager Managem ent M enu . Using Dell Manager in R ed Hat Linux GUI Mode On a Red Hat Linux system, for Dell Manager to work corr ectly in a terminal in GUI Mode, y ou must: • Set the ter minal typ e to linux. • Set the keyboard mappings to linux. P erform[...]

190 Dell Manager www .dell .com | support. dell.co m 3 Select Settings— > Ke y b o a r d — > Linu x Conso le from the T erminal menu. Dell Manager Menu Options The following sections list the menu and sub-menu opt ions available fr om the Dell Manager Management Menu . Init ialize Men u Choose Initializ e from the Dell Manager Manageme nt[...]

Dell Manager 191 Lo gical Drive Choose Objec ts— > Lo gi ca l D ri ve to select a logical dri ve and to perform the actions des cribed in T able 12-4 . Lo gical Drive Settings T able 12-5 displays the default logical driv e settings. Y ou can change the write policy , read policy , and cache po li cy aft er conf igu ratio n is comp lete . View[...]

192 Dell Manager www .dell .com | support. dell.co m Phys ical Drive Select Objec ts— > Physical Dr ive to select a p hysical device and to perf orm the operations li sted in T able 12-5. When you choose this opti on, the physical drives in the system are listed. Move the curs or to the desired device and pr ess <Enter> to display the op[...]

Dell Manager 193 SCSI Channe l Choose Objec ts— > SCSI Channel to select a SCSI channel on a controller . T able 12-7 displays the operations you can perform on the selected channel. Battery Backup Choose Objects-> Battery Backup to view the b attery b ackup inform ation. Y ou can use the battery backup menu to r eset the char ge cycle coun[...]

194 Dell Manager www .dell .com | support. dell.co m Fo r m a t M e n u Choose Fo r m a t fro m th e D ell Man age r Managem ent Men u to low-level format one or more physical drives. Because most SCSI disk drives are low-level formatted at the factory , thi s step is usually not necess ary . Y ou typically must format a disk if: • The disk drive[...]

Dell Manager 195 Reb uild Menu Choose Reb u il d from the Mana gement M enu to rebuild one or mo re failed disk drives. Check Consiste ncy Menu Choose this option to verify the red undancy data in logical drives using R AID levels 1 or 5. When yo u choose Ch eck C onsis tency , the parameters of the existing logical d rives on the curr ent controll[...]

196 Dell Manager www .dell .com | support. dell.co m 1 Select Objects— > Physic al Dri ve and pr ess <En ter>. The Physical Drive Selection Menu disp lay s. 2 Highlight a drive on the Ph ysical Drive Selection Menu using the arrow k eys and pre ss <Enter>. The action menu f or the physica l drive display s. 3 Use the arro w ke y to[...]

Dell Manager 197 – Rea d - a h ea d specifies that the controller uses read-ahead for the current l ogical drive. – Adaptive specifies that the controller begins using r ead-ahead if the two most r e cent disk accesses occurr ed in sequential sectors. If all r ead re quests ar e random, the alg orithm re verts to Normal , however , all r equest[...]

198 Dell Manager www .dell .com | support. dell.co m The progr ess of the initia lization for each drive display s in bar graph format. 6 When initializat ion is complete, pr ess any k ey to continue. 7 P ress <Esc> to display the M anagement M enu . Individual Initializat ion P erform the following steps to init ialize one logical drive. 1 S[...]

Dell Manager 199 P erform the following steps to delete logical drives: 1 Choose Objec ts— > Lo gi ca l Dr iv e . The logical drives display . 2 Use the arrow key to highli ght the logical drive you want to delete. 3 P ress <F5> to delete the logical drive. This deletes the logical drive and makes the space it occu pied available for you[...]

200 Dell Manager www .dell .com | support. dell.co m F ormatting Dr ives Y ou can format the physical drives using: • Batch F ormat ting The Fo r m a t option in the Dell Manager Mana gement Menu lets you format up to eight disk drives simu lt aneo usly . • Individu al F ormatti ng. Choose the Fo r m at o ption from t he Objects— > Physica[...]

Dell Manager 201 4 When f ormatti ng comp letes, pr ess any k ey to dis play the pre vious menu. R ebuilding F ailed Disk Drives If a ph ysical drive fai ls in an array configured as a RAID 1 or 5 logical drive, you can r ecover the lost data by rebuilding the drive. If a r ebuilding spare fails, a new r ebuild is starte d using a second spare , if[...]

202 Dell Manager www .dell .com | support. dell.co m Manual R ebuild – Batch Mode P erf orm the follow ing steps to rebuild more than one dri ve: 1 Choose Reb ui ld from t he Ma nagemen t Menu . A device selection window displays the devices connected to the current controller . The failed drives ha ve FA I L indicators. 2 P ress the arrow keys t[...]

SECTI ON 13 T roubles hooting Over view BIOS Boot Err or Messages Othe r BIOS Erro r Mess age s Othe r Poten tial P roble ms Audible Warni ngs[...]

204 T roubleshooting www .dell .com | support. dell.co m Over view This chapter describes the problems that you might encounter during installation and use of PE RC, and how to resolve them. T able 1 3-1 describes general problems you might encounter . T able 13-1. General Problems and Suggested Solutions Problem Sugg ested Solu tion Some oper atin[...]

T rouble shoot ing 205 BIOS Boot Error Messages T able 13-2 explains the error messages tha t can display when there is an error during bootup. The followi ng display s: Firmware Initializing... Mak e sur e that te rmina tion pow er (TERM PWR ) is being properly pr ovided to each peripheral device- populated channel. Mak e sur e that eac h end of t[...]

206 T roubleshooting www .dell .com | support. dell.co m Configuration of NVRAM and drives mismatch. Run View/Add Configuration option of PERC 3 BIOS Configuration Utility. Press any key to run the Configuration Utility. The c onfig uration stor ed in t he PER C 3 adapter does not match th e config uration s tored in the dr ives. Pr ess <Ctrl &g[...]

T rouble shoot ing 207 X Logical Drives Degraded x number of logical drives signe d on in a degraded state. Make sure all phy sical drives are properly connected and are powe red on. R u n the BIOS C onfigurat ion Util ity to f ind whethe r any physi cal drive s ar e not r espon ding. Reconnect, replace , or rebuild a drive th at is no t res pon di[...]

208 T roubleshooting www .dell .com | support. dell.co m Other BIOS Error Messages T able 13-3 e xplains the other BIOS error messages that can dis play . T able 13-3. Ot her BIOS Error Messages Message Prob lem Sugges ted Solution Following SCSI disk not found and no empty slot available for mapping it The physical disk roaming feat ure did not fi[...]

T rouble shoot ing 209 Other P otential Problems T able 13-4 des cribes other items that might ca use problems. T able 13-4. Other P otential Problems T opic Infor mati on Physi cal dr ive errors T o display t he Med i a Error and Other Error options, select the Objects— > Phy sical Dri ve menu and pr es s <F 2> af ter you select a p hys[...]

210 T roubleshooting www .dell .com | support. dell.co m Audible W arnings The PERC car d onboard tone generato r indicates events and errors. T able 13-5 describes the warnings and their meanings. T able 13-5. Audible W arnings T one Patter n Meaning Exampl es Three second s on and one second off A logical drive is offline. One or mor e drive s in[...]

SECTI ON 14 Appendix A : SCSI Cables and Connectors Visit Dell ’s web s ite at www .dell.com for information about qualified SCSI cables and connectors, or contact your Dell representati ve f or inf orm atio n.[...]

212 Appendix A: SCSI Cabl es and Connectors www .dell .com | support. dell.co m[...]

SECTI ON 15 Appendix B: W arranties and R eturn Po l i c y[...]

214 Appendix B: Warranties and R eturn Policy www .dell .com | support. dell.co m Dell-branded hardwar e products purchased in the U.S. or Canada come with either a one-year , two-year , three-year , or four -year (U.S. only) li mited warranty . T o determine which warranty you purchased, see the Dell invoice that accompanied your computer . The fo[...]

Appendix B: W arranties and R eturn P olicy 215 NOTE: Before you ship the product(s) to Dell, back up the data on the hard dri ve(s) and a ny other storage device(s) in the product(s). Remove any remova ble medi a, such as diskettes, CD s, or PC Cards. D ell does not acce pt l iab ilit y fo r lo st data or sof tware. Dell will r epair or replace pr[...]

216 Appendix B: Warranties and R eturn Policy www .dell .com | support. dell.co m SOME ST A TES (OR JURISDICTIONS) DO NOT ALLOW THE EXCL USION OR LI MIT A TION O F INCIDENT AL OR CONSEQUENTIAL D AMAGES, SO THE PRECEDING EXCL USION OR LIMIT A TION MA Y NOT APPL Y TO Y OU. These provisions appl y to Dell’s one-year limited warranty only . F or prov[...]

Appendix B: W arranties and R eturn P olicy 217 This limited warranty does not cover any items tha t ar e in one or mo r e of the following categories: software; external devices (e xcept as specifically noted); access ories or parts added to a Dell system afte r the system i s ship ped from D ell; acc ess ori es o r pa rts added to a Dell system t[...]

218 Appendix B: Warranties and R eturn Policy www .dell .com | support. dell.co m Limited W arranty Coverage During Y ear T wo During the second year of this l imited warranty , Dell will provide, on an ex change basis and subject to Dell’s Ex change P olicy in effect on the date of the ex change, replacemen t parts for the D ell hardware product[...]

Appendix B: W arranties and R eturn P olicy 219 Gene ral Pro visio ns THIS LIMITED W ARRANTY GIV ES Y OU SPECIFIC LEGAL RIGHTS, AND Y OU MA Y ALSO HA VE OTHER RIGHTS, WH ICH V A R Y FROM ST A TE TO ST A TE (OR JURISDICTION TO JURISDI CTION). DELL'S RESPONSIB ILITY FOR MALFUNCTION S AND DEFECTS IN HARD W ARE IS LIMITED T O REP AIR AND REPLA CEM[...]

220 Appendix B: Warranties and R eturn Policy www .dell .com | support. dell.co m Three- Y ear Li mited Wa rranty (U.S. Only) Dell Computer Corporation ("Dell") manufactur es its hardwar e products from parts and components that ar e new or equi valent to new in accordance with industr y-standa rd practices. D ell warra nts that the hardw[...]

Appendix B: W arranties and R eturn P olicy 221 Limited W arranty Coverage During Y ear One NOTE: Before you ship the product(s) to Dell, back up the data on the hard dri ve(s) and a ny other storage device(s) in the product(s). Remove any remova ble medi a, such as diskettes, CD s, or PC Cards. D ell does not acce pt l iab ilit y fo r lo st data o[...]

222 Appendix B: Warranties and R eturn Policy www .dell .com | support. dell.co m Y o u will pa y Dell for repl aceme nt parts if the repla ced part is not retur ned to Dell. Th e process for ret urning r eplace d parts, and yo ur obliga tion to pay for r eplacement parts if you do n ot ret urn the r eplaced parts to Dell , will be in accordance wi[...]

Appendix B: W arranties and R eturn P olicy 223 These provisions apply to Dell’s thr ee-year limited warranty only . F or provisions of any service contract covering your system, see your invoice or the separate se rvice contract that you will r eceive. If Dell elects to ex change a system or componen t, the ex change will be made in accor dance [...]

224 Appendix B: Warranties and R eturn Policy www .dell .com | support. dell.co m Limited W arranty Coverage During Y ear One NOTE: Before you ship the product(s) to Dell, back up the data on the hard dr ive(s) an d any othe r storag e device( s) in the product(s). R emove any remova ble media, such as diskette s, CDs, or PC Cards. De ll does not a[...]

Appendix B: W arranties and R eturn P olicy 225 Y ou will pay De ll for replacement parts when the replaced pa rt is not re turned to Dell. The process for r eturning rep laced parts, and your obli gation to pay f or re placem ent part s if you do not r eturn the rep laced parts to Dell, will be in accordance with Dell 's Exchange P olicy in e[...]

226 Appendix B: Warranties and R eturn Policy www .dell .com | support. dell.co m If Dell elects to ex change a system or componen t, the ex change will be mad e in acc ordan ce w ith Del l's E xchang e Policy i n ef fec t on the dat e of the ex change. In any instance in w hich Dell issues a Return Material Authoriza tion Number , Dell must r[...]

Appendix B: W arranties and R eturn P olicy 227 NOTE: Before you ship the product(s) to Dell, back up the data on the hard dri ve(s) and a ny other storage device(s) in the product(s). Remove any remova ble medi a, such as diskettes, CD s, or PC Cards. D ell does not acce pt l iab ilit y fo r lo st data or sof tware. Dell will r epair or replace pr[...]

228 Appendix B: Warranties and R eturn Policy www .dell .com | support. dell.co m SOME ST A TES (OR JURISDICTIONS) DO NOT ALLOW THE EXCL USION OR LIMIT A TION OF INCIDENT AL, INDIRECT , SPECIAL, P UNITIVE, OR CONSEQUENTIAL DAMAGES, S O THE PRECEDING EXCL USION OR LIMIT A TION MA Y NOT APPL Y TO YO U . These provisions appl y to Dell’s one-year li[...]

Appendix B: W arranties and R eturn P olicy 229 This limited warranty does not cover any items tha t ar e in one or mo r e of the following categories: software; external devices (e xcept as specifically noted); access ories or parts added to a Dell system afte r the system i s ship ped from D ell; acc ess ori es o r pa rts added to a Dell system t[...]

230 Appendix B: Warranties and R eturn Policy www .dell .com | support. dell.co m Limited W arranty Coverage During Y ear T wo During the second year of this l imited warranty , Dell will provide, on an ex change basis and subject to Dell’s Ex change P olicy in effect on the date of the ex change, replacemen t parts for the D ell hardware product[...]

Appendix B: W arranties and R eturn P olicy 231 DELL' S RES PONSI BILIT Y FOR M ALFUNC TION S AND DEFEC TS IN HARD W ARE IS LIMITED T O REP AIR AND REPLA CEMENT AS SET FOR TH IN THIS LIMITED W ARRANTY ST A TEMENT . THE SE W ARRANTIES GIVE Y OU SPECIFIC LEGAL RIGHTS, AND YOU MA Y ALSO HA VE OTHER RIGHTS, WHICH V AR Y FROM ST A TE TO ST A TE (OR[...]

232 Appendix B: Warranties and R eturn Policy www .dell .com | support. dell.co m Damage due to shipping the products to you is covered under this limited warranty . Otherwise, this limited wa rranty does not cover damage due to external causes, including accident, abus e, misuse, problems with elect rical power , servicing not a uthorized by Dell,[...]

Appendix B: W arranties and R eturn P olicy 233 Dell owns all parts r emoved from repair ed products. Dell uses new and re conditioned parts made by various manufacturers i n performing warranty r epairs and building r eplacem ent product s. If Dell repairs o r re places a produc t, its warr anty term is not extended. Limited W arranty Coverage Dur[...]

234 Appendix B: Warranties and R eturn Policy www .dell .com | support. dell.co m "T otal Satisfaction" R eturn P olicy (U.S. Onl y) If you ar e an end-user customer who bought new products directly from a Dell company , you may r eturn them to Dell within 30 days of the date of invoice for a r efund or credit of the product purchase pric[...]

Appendix B: W arranties and R eturn P olicy 235 One- Y ear End-User Manuf acturer Guarant ee (Latin America and the Cari bbean Only) Guar ante e Dell Computer Corporation ("Dell") warrants to the end user in accor dance with the following provisions that it s branded har dware products , purchased by the end user from a Dell compan y or a[...]

236 Appendix B: Warranties and R eturn Policy www .dell .com | support. dell.co m Limitation and St atutory Rights Dell make s no other warranty , guarant ee or li ke stat ement other than as exp licitly stated ab ove, and this Guarant ee is given in place of all other guarantees w hatsoever , to the fullest extent permitted by law . In th e absenc[...]

Glossary 237 Glossar y Array— A gro uping of h ard dis k dri ves combi nes t he st orag e spa ce on t he hard drives into a single se gment of contiguous sto rage space. The RAID controller can group hard drives on one or mor e channels into an array . A hot spare drive does not participate i n an array . Array Managemen t Software— Softw are t[...]

238 Glossary www .dell .com | support. dell.co m Cache Input/Output (I/O)— A small amount of fast memory that holds re cently accessed data. Caching speeds subsequent access to the same data. I t i s m os t of t e n a p p li e d to p r oc e s so r- me m or y a cc e s s, b ut c a n al s o be u s ed t o stor e a copy of data accessible over a netwo[...]

Glossary 239 Disk Duplexing— A variation on disk mirroring in which a second disk adapter or host adapter and re dundant hard drives are present. Disk Mirroring— W riting du plicat e data to mor e than o ne (usu ally two ) hard disks to protect against data loss in the eve nt of device failure. Disk mirroring is a common feature of R AID system[...]

240 Glossary www .dell .com | support. dell.co m FlexRA ID P ower F a il Option— The FlexR AID P ower Fa il option allows a reconstruction to restart if a power failure occurs . This is the a dvantage of this o ption. The disa dvantage i s, o nce the reconstruction is ac tive, the performance is slower because an a dditional activity is running. [...]

Glossary 241 Init ial izat ion— The process of writi ng zeros to the da ta fields of a logical drive and generating the corresponding parity to br ing the logical drive to a ready state. Initializing erases previous data and generates pa rity so that the logical drive will pa ss a consistency check. Array s can work without init ial izi ng, bu t [...]

242 Glossary www .dell .com | support. dell.co m Pa r i t y — P arity is an extra bit added to a b yte or wor d to r eveal errors in storage (in random access memory , RAM, or disk) or transmission. P arity is used to generate a set of re dundancy data from two or more parent data sets. The redundancy data can be used to r e construct one of the [...]

Glossary 243 RAI D L ev e ls — A style of redundancy applied to a logical dri ve. It can increase the performance of the logical drive and can decrease usable capacity . Each logical drive must have a RA ID level assigned to i t. The R AID lev el drive r equirements are: RAID 0 requir es one t o eight physical drives, R AID 1 requires exactly two[...]

244 Glossary www .dell .com | support. dell.co m Replacement U nit— A component or collection of comp onents in a disk subsyste m that are alw ays replace d as a unit when any part of the collection fails. T ypical replacement units in a disk subsystem includes disks, controller logic boar ds, power suppli es, and cables. Also ca lled a hot spar [...]

Glossary 245 Stripe Size— The amount of data contiguously writ ten to ea ch disk. Y ou can specify strip e sizes of 4 KB, 8 KB , 16 KB, 32 KB, 64 KB, and 128 KB for each logical drive. F or best performance, choos e a stripe size equal to or smaller than the block size used by the host computer . Stripe Width— The number of hard driv es across [...]

246 Glossary www .dell .com | support. dell.co m[...]

Index 247 Inde x A Array , 237 Array Configuration Plan ner , 98 Array Management Softwar e, 237 Array P erform ance F eatures, 56, 67 , 76 Array Spanning, 237 Arrays, 92-93 , 109, 12 5-126, 142, 170, 176 Asynchronous Operations , 237 A T A, 237 Au dible W arnings, 210 B Battery Backup , 193 BIOS, 58, 60, 68, 70, 7 2, 78, 80-81, 93, 96, 104-1 05, 1[...]

248 Index 248 Index Optimizing, 9 6 Data T ransfer Cap acity , 238 Degraded, 238 Dell Manager , 61-62, 72, 81- 82, 187-19 0, 194-195, 197-202 Check Consiste ncy , 1 9 5 F ormat Menu, 1 9 4 Init ial ize Men u, 1 9 0 Objects Menu, 1 9 0 Rebuild Men u, 1 9 5 S t a r t i n g , 188 Disk, 23 8 Disk Array , 238 Disk Duple xing, 239 Disk Mirroring, 34, 239[...]

249 Index 249 Index L Log ic al Di sk, 2 41 Logical Drives, 115, 130, 147, 150, 159, 205, 207 , 241 Configuring, 9 6 Creating, 9 3 D e f i n i t i o n , 183 I n i t i a l i z i n g , 178, 197 Spanning, 3 5 States, 4 0 M Mapping, 241 MB, 241 Media Errors, 180, 199 Multi-thr eaded, 241 N New Configuration, 96, 152 , 159-161, 167, 208 O Operating En v[...]

250 Index 250 Index Repl acement Unit, 244 Return P olicy , 213, 234 S Safety Instructions, 1 SCSI, 24-27, 30-31 , 39, 54, 56, 59-61, 64, 66, 69 -71, 74, 76, 79-81, 84-87 , 89, 102-109, 113-115 , 118, 120-122, 124-126 , 128- 130, 134, 136-138 , 140- 142, 145-147, 153 , 156- 158, 166, 171, 177 , 180, 183-184, 190, 193 -194, 196, 199, 204-205 , 207- [...]

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