Compaq StorageWorks 4100 - RAID Array Uživatelská příručka stáhnout pdf (Strana 24)

Introduction 1-11

Redundant Power Supply

The Compaq RA4100 includes a second power supply, which acts as a

redundant supply. The redundant power supply is identical to the primary

supply and shares the electrical load equally. If either supply fails or is

removed, the other supply takes over the full load without interruption. Hot-

pluggability allows you to replace the failed supply without shutting the

system down. See Chapter 4, “Replacing a Redundant Power Supply” for

more information.

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RAID Array 4100 1
Second Edition (January 2000) 2
Part Number 146297-002 2
Contents 3
Chapter 2 4
Chapter 3 4
Chapter 4 5
Chapter 5 5
Chapter 6 6
Appendix A 6
Appendix B 6
Appendix C 6
Appendix D 6
Appendix E 7
About This Guide 8
Text Conventions 9
Symbols in Text 10
Symbols on Equipment 10
Rack Stability 11
Getting Help 11
Compaq Technical Support 12
Compaq Website 12
Compaq Authorized Reseller 13
Introduction 14
Features 15
Introduction 1-3 16
Table 1-1 16
RA4100 Features 16
Front Panel Features 17
Fan Assembly 18
Hot-Pluggable Drives 19
Maximum Storage 19
SCSI ID Assignments 19
Fault Tolerance 21
Capacity Expansion 21
Performance Monitoring 23
Automatic Performance Tuning 23
Tagged-Command Queuing 23
System Power 23
Redundant Power Supply 24
Installation 25
1. Choose a location 26
Installing the RA4100 28
Environment 29
Grounding 30
Temperature Requirements 30
Airflow Requirements 31
Blanking Panels 32
TROJO33.EPS 33
TROJ026.eps 34
TROJ034.eps 34
TROJ035.eps 35
Installing the Storage Hub 37
Installing the Storage Hub 12 38
Fibre Channel Cables 39
Connecting the Power 42
TROJ011.EPS 42
Operation 44
Front Panel 45
Power Supply 46
Hard Drives 48
Troubleshooting 49
Fibre Host Adapter LEDs 50
RA4000 Controller LEDs 51
Table 4-1 52
Storage Hub 7 53
Storage Hub 12 54
Redundant Controller 57
Controller 59
Replacing GBICs 64
Removing Fibre Channel Cables 65
Replacing the Fan Assembly 67
Replacing Hard Drives 69
Configuration Wizards 76
Configuration Procedures 77
Creating a New Array—Example 78
 Port 1:SCSI ID 0 80
 Port 1:SCSI ID 1 80
 Port 1:SCSI ID 2 80
Figure 5-5. Example Array A 81
Configuration Utility 82
8. Click the Done button 86
2. Click the Drive menu 87
5. Click Done 88
Online Migration 89
6. Click Done 90
Redundant Controllers 91
Main Configuration Screen 92
Controller Selection Box 93
View Box 93
More Information Button 94
Drive View Box 94
Controller Buttons 94
Array Buttons 95
Logical Drive Buttons 95
Controller Settings Screen 96
Create Array Screen 97
Create Logical Drive Screen 98
Stripe Size 99
Table 5-1 99
Stripe Size Fault Tolerance 99
Error and Warning Messages 100
Utility (CPQONLIN) 100
 CPQFC.HAM and CPQSHD.CDM 100
Auto-configuration 101
Custom Configuration 102
Priority Settings 103
Drive Rebuild 103
Accelerator Ratio 104
Expanding an Array 104
Handling Disk Drive Failures 106
Options ROMPaq 108
Regulatory Compliance Notices 111
European Union Notice 112
Japanese Notice 113
Taiwanese Notice 113
Laser Compliance 113
Battery Replacement Notice 114
Electrostatic Discharge 115
Grounding Methods 116
Specifications 117
Table C-1 118
RA4100 Specifications 118
Fibre Channel Technology 119
Advantages of Fibre Channel 120
Point-to-Point Connection 121
Arbitrated Loop 122
Server RA4100 1 123
Exchange 125
Sequence 125
Fibre Channel 125
Protocol Layers 126
Hard Drive Arrays 127
Hard Drive Arrays E-3 129
Drive Arrays 130
Logical Drives 130
Drive Array Benefits 131
Table E-1 132
RAID Level Characteristics 132
DATADATADATA 133
Data Guarding (RAID 4) 134
Drive Mirroring (RAID 1) 134
DAZ-10-2.EPS 135
Performance Enhancement 136
Array Accelerator 137
Performance 138
Data Protection 138
ECC Memory 138
Batteries 138
Optimized Request Management 139
Expanding Storage Capacity 140
Online Capacity Expansion 142
Hard Drive Upgrades 142
Auto Reliability Monitoring 143
Dynamic Sector Repairing 143
Drive Parameter Tracking 143
Drive Failure Alert Features 144
Interim Data Recovery 144
Automatic Data Recovery 144
Appendix F 145
Recognizing a Drive Failure 145
Replacing a Failed Drive 147
Compromised Fault Tolerance 149

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