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Direct-attached dual-controller connections

The following illustration shows a direct-attached SAS connection from each

controller to a single HBA in the same host (redundant host connection).

Host system

with dual host

adapter

DS3200

Figure 29. Dual-controller direct-attached connection to two HBAs in the same host

(redundant host connection)

40 System Storage DS3200 Storage Subsystem: Installation, User’s, and Maintenance Guide

1 2 ... 53 54 55 56 57 58 59 60 61 62 63 ... 143 144

Sixth Edition (October 2009) 4
Contents 5
Contents v 7
Safety xiii 15
Safety xv 17
CAUTION: 18
Chapter 1. Introduction 19
Serial number label 20
Product name 20
Machine type, model, and 20
Chapter 1. Introduction 3 21
Models and optional devices 23
Operating-system support 23
Product updates 23
Best practices guidelines 24
System Storage 25
Figure 3. Bezel (left side) 26
Figure 4. Bezel (right side) 26
Controllers 27
Power supply and fans 28
Battery units 29
Determining firmware levels 30
Dimensions 31
Site wiring and power 32
AC power recovery 33
Power cords and receptacles 33
Inventory checklist 35
Installation overview 36
Preparing for installation 38
Required tools and hardware 38
Preparing the site 39
SAS controller connectors 41
Enclosure ID settings 42
Working with SAS cables 42
Blue plastic tab 44
Redundant drive channel pair 45
Important: 52
Controller A Controller B 53
Host system 56
(redundant host connection) 57
Hardware inspection 64
Firmware updates 68
Checking the LEDs 70
Power-supply LEDs 70
Front LEDs 71
Controller LEDs 71
SAS link service action 72
SAS link up 72
Cache memory 79
Controller cache battery 79
Controller battery age timer 80
Service action allowed LED 81
Removing a controller 81
Installing a controller 82
Replacing a controller 84
Battery connector 86
Captive fastener 86
Memory cache battery 86
SAS host port adapter 89
Captive fasteners 89
Removing a hard disk drive 92
Installing a hard disk drive 93
Replacing multiple drives 95
Replacing a power supply 100
Power supply 104
Guide pin 104
Replacing a battery 105
Host adapter or 107
Installing the DIMM 109
Replacing the bezels 111
Removing the bezels 111
Installing the bezels 111
Release tab 113
Chapter 6. Solving problems 117
Replaceable components 123
Power cords 124
Appendix A. Records 127
Hard disk drive locations 128
Appendix A. Records 111 129
Before you call 131
Using the documentation 131
Software service and support 132
Hardware service and support 132
IBM Taiwan product service 132
Appendix C. Notices 133
Important notes 134
Particulate contamination 135
Documentation format 135
Appendix C. Notices 119 137
Index 123 141
Part Number: 46M1392 144
Printed in USA 144
(1P) P/N: 46M1392 144

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