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viii
IBM
System
Storage
DS5020
Storage
Subsystem:
Installation,
User
’s, and
Maintenance
Guide
1
2
...
5
6
7
8
9
10
11
12
13
14
15
...
249
250
First Edition (July 2009)
4
Contents
5
Contents v
7
Contents vii
9
© Copyright IBM Corp. 2009 ix
11
© Copyright IBM Corp. 2009 xi
13
Safety xv
17
Safety xvii
19
Cable Warning:
20
About this document
21
General overview
22
About this document xxi
23
About this document xxiii
25
Before you call
26
Using the documentation
26
Web sites
27
Software service and support
28
Hardware service and support
28
Fire suppression systems
29
Chapter 1. Introduction
31
Base DS5020 features
32
Operating system support
33
Fibre Channel defined
33
SATA defined
33
Inventory checklist
33
Best practices guidelines
35
Storage subsystem components
36
Chapter 1. Introduction 7
37
Controllers
38
Chapter 1. Introduction 9
39
Controller B
40
Chapter 1. Introduction 11
41
AC power supply and fan units
43
Battery units
44
Figure 7. Backup battery unit
45
SFP modules
46
Chapter 1. Introduction 17
47
Determining firmware levels
48
44.70 cm (17.60 in.)
49
12.95 cm (5.1 in.)
49
57.15 cm (22.5 in.)
49
48.26 cm (19.00 in.)
49
Shipping dimensions
50
Temperature and humidity
50
Altitude
51
Airflow and heat dissipation
51
Acoustic noise
52
Electrical requirements
53
Chapter 1. Introduction 25
55
Installation overview
57
Ser i al n u m b er
58
Machine type
58
Model number
58
Preparing for installation
59
Tools and hardware required
61
Preparing the site
61
Preparing the rack cabinet
62
Installing the support rails
62
Installing the DS5020
66
Removing the CRUs
66
Removing a controller
67
Removing an E-DDM
69
Front of Rack
71
M5 screws
71
M4 screws
71
Replacing an E-DDM
74
Enclosure ID settings
75
Enclosure ID
76
Handling fiber-optic cables
77
Installing SFP modules
78
Removing SFP modules
80
Protective cap
83
Fibre-optic
83
Redundant drive channel pair
85
Redundant
86
Drive Channel
86
Port 2, drive channel 1
100
Port 1, drive channel 1
100
Port 1, drive channel 2
100
Port 2, drive channel 2
100
Host portsController A
113
Host ports Controller B
113
Host 1, Host Adapter 1 and 2
114
Host 2, Host Adapter 1 and 2
114
Cabling the ac power supply
121
© Copyright IBM Corp. 2009 93
123
Web pages
124
Hardware responsibilities
124
Firmware updates
129
Checking the LEDs
131
Front LEDs
132
Battery unit LEDs
133
Controller LEDs
134
Seven-segment
138
Diagnostic
138
Cache memory
146
Subsystem cache battery
147
Figure 74. Battery unit LEDs
149
Replacing a controller
152
Class 1 Laser Product
153
Laser Klasse 1
153
Laser Klass 1
153
Luokan 1 Laserlaite
153
Apparell Laser de Calsse 1À
153
Pro t ect i ve cap
154
SFP m o d u l e
154
Plastic tab
154
Guide pin
155
Working with hot-swap E-DDMs
156
Installing hot-swap E-DDMs
158
Tr ay h a n d l e
159
Tr ay l a t c h
159
Replacing hot-swap E-DDMs
160
Replacing multiple E-DDMs
161
Two on = 4 Gbps
167
One on = 2 Gbps
167
Link Rat e sw it ch
168
(2 Gbps or 4 Gbps)
168
Replacing a battery unit
174
Replacing an SFP module
176
Replacing a midplane
179
Front cage frame screws
180
Sc r e w
181
Sc r e w s
181
General checkout
183
Solving problems
183
Parts listing
190
Appendix A. Records
193
Sample information record
195
Installed device records
196
Rack Mounting
199
Template
199
Rack specifications
203
EIA Hole Spacing
205
Appendix D. Power cords
209
Appendix D. Power cords 181
211
Appendix F. Accessibility
225
Trademarks
227
Important notes
228
Particulate contamination
229
Documentation format
229
Notices 201
231
Glossary
233
Glossary 205
235
Glossary 207
237
Glossary 209
239
Glossary 211
241
Index 215
245
Index 217
247
Part Number: 49Y0289
250
Printed in USA
250
(1P) P/N: 49Y0289
250
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