Compaq StorageWorks TM RAID Array 3000 Pedestal Storage Subsystem Podręcznik Użytkownika Pobierz pdf (Strona 48)

2-14 RAID Array 3000 Pedestal Storage Subsystem Hardware User’s Guide

Compaq Confidential – Need to Know Required

Writer: Bob Young Project: RAID Array 3000 Pedestal Storage Subsystem Hardware User’s Guide Comments:

Part Number: EK-SMCPO-UG. C01 File Name: c-ch2 RAID Array Controller.doc Last Saved On: 12/4/00 1:51 PM

Figure 2–4 shows a diagram of a RAID 0 write.

Figure 2-4. RAID 0 write

1 2 ... 43 44 45 46 47 48 49 50 51 52 53 ... 111 112

Compaq StorageWorks 1
Contents 3
Chapter 2 4
Chapter 3 4
Chapter 4 5
Chapter 5 5
List of Figures 5
List of Tables 7
About This Guide 9
Related Documents 11
Text Conventions 12
Symbols in Text 13
Symbols on Equipment 13
This is a test 14
Rack Stability 15
Getting Help 15
Compaq Website 16
Compaq Authorized Reseller 16
Product Overview 17
PEDESTAL 18
Table 1-1 19
Pedestal Features 20
Pedestal Cabinet 20
Product Overview 1-5 21
Pedestal Components 22
Pedestal Power Supplies 23
Product Overview 1-9 25
UltraSCSI Buses 26
Table 1-2 29
Table 1-3 30
Table 1-4 31
(Y-cable connection cabling) 31
Rear View of DS-SWXRA-GA 32
Controller Pedestal 32
Rear View of 32
DS-SWXRA-GD 32
Expansion Pedestal 32
Specifications 33
Table 1-7 34
RAID Array Controller 35
Controller Features 37
Table 2-1 39
Controller Specifications 39
Environmental 41
Performance Enhancements 43
Write-Back Caching 44
Write Gathering 45
Write On Top 45
RAID Levels Supported 46
Figure 2-4. RAID 0 write 48
RAID 0+1 49
Table 2-5 50
RAID 0+1 Example 50
Redundant Operation 54
Environmental 55
Backup Power Management 56
Voltage Monitoring 57
Temperature Monitoring 58
Board Temperature 59
Table 2-11 59
Maintenance 61
SBB Status LEDs 63
Controller LEDs 64
EMU Error Reporting 65
Replacing Components (FRUs) 66
Removing the Pedestal Door 67
Replacing an SBB 67
Figure 3-4. Replacing an SBB 68
Replacing a Power Supply 69
Replacing the EMU Board 71
Replacing the UPS 73
Reconfiguring the SCSI Bus 74
Maintenance 3-17 77
Maintenance 3-19 79
Expansion Pedestal Option 81
Expansion Pedestal Cabinet 82
EXPANSION PEDESTAL 83
Expansion Pedestal Components 84
SCSI cable 17-04454-01 86
SHR-1495 87
Connect Jumper Cable 89
Remove Knockout 90
Connect SCSI Cable 91
Pedestal 94
Expansion 94
Pedestal 94
Second Controller Option 97
Second Controller Option Kit 98
Installing the Upgrade 99
Updating Firmware 100
Shutting Down the RA3000 102
Replacing Existing Controller 104
Restoring the Configuration 105
Operation 108
HSZ22 StorageWindow) 110

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