Mylex DAC960PG Instalační příručka stáhnout pdf (Strana 87)

Intelligent Battery Backup Unit

Manual No. 771971 B-9

Removing the Battery Backup Module

The battery backup module will need to be removed for one of the following

reasons:

1. The NiCd battery will no longer accept a charge properly (NiCd battery

life expectancy is approximately 5 years).

2. The cache memory needs to be removed from the DAC960PG for

replacement or upgrade.

WARNING

Do not attempt to install, remove, or change a

cache SIMM on the DAC960PG with the IBBU

installed. Serious damage to the SIMM and/or the

battery backup unit will occur if this precaution is

not followed.

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PCI RAID Controller 1
Installation Guide 1
DAC960PG 3
PCI to Ultra-SCSI 3
RAID Controller 3
Class B Compliance 5
Declaration of Conformity 6
Community of Europe 7
About This Manual 8
Conventions 9
Contents 11
Installation 12
Start-up Sequences 12
Enclosure Management 13
Introduction 15
Caution 16
Manual No. 771971 1-3 17
Standard Package Contents 18
Key Features 19
Automatic RAID Functions 20
Enhance SCSI Performance 21
Increase System Availability 21
Operating System Support 21
DAC960PG Specifications 22
Functional Description 25
WARNING 26
PCI Bus Interface 27
Ultra-SCSI Bus Interface 28
Manual No. 771971 2-5 29
SCSI Functions 30
Manual No. 771971 2-7 31
Drive Organization 32
Configuration on Disk 33
Device Translation Table 34
Manual No. 771971 2-11 35
RAID Management 36
RAID Techniques and Terms 37
Striping (RAID 0) 38
Manual No. 771971 2-15 39
Striping Terminology 41
Drive Management 42
Write-Only (WOL) 43
Ready (RDY) 43
Critical 44
Off-line 44
Hot-Swap Drive Replacement 45
Disk Failure Detection 45
Disk Media Error Management 45
Checking Disk Consistency 46
Cache Management 47
Before You Begin . . 50
Installation Notes: 51
Format Drive 54
Connectors and Jumpers 55
External LED Connector 56
SCSI Termination 57
Configuring the SCSI Devices 61
SCSI Cabling 62
Cable Lengths 63
Connecting Non-Disk Devices 64
Using a UPS 65
Cache Battery Backup Option 66
Setting BIOS Options 68
Figure 4-1. BIOS options Menu 69
Press the 70
BIOS Enable or Disable 71
CD-ROM Boot Disable or Enable 71
Error Messages 72
Drive Check Error Messages 73
X system drives installed 74
Aborted Installation 75
System Reboot or Power Down 75
Appendix B 79
IBBU Specifications 80
Battery and Charge Circuit 82
Operation 85
Battery Backup Capacity 86
Recycling the Battery 88
Manual No. 771971 B-11 89
Drive Groups (or Drive Packs) 92
Logical Drive States 93
Logical Drives 94
Mirroring 94
Manual No. 771971 Glossary-5 95
Replacement Table 96
Rotated XOR Redundancy 96
SCSI Drive 96
SCSI Drive States 96
Segment Size 97
Standard Disk Drive 98
Stripe Size 99
Stripe Order 99
Stripe Width 100
Striping 100
System Drives 100
Target ID 100
Write Back Cache 101
Write Through Cache 101
Glossary 102
Manual No. 771971 Index-1 103

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