IBM SAN Volume Controller Owner's manual

System Storage SAN Volume Controller
Hardware Maintenance Guide
Version 6 Release 1
GC27-2226-03


System Storage SAN Volume Controller
Hardware Maintenance Guide
Version 6 Release 1
GC27-2226-03


Note
Before using this information and the product it supports, read the general information in
“Notices” on page 291, the information in the “Safety and environmental notices” on page xiii, as
well as the information in the IBM Environmental Notices and User Guide on the documentation CD.
This edition applies to the IBM System Storage SAN Volume Controller, Version 6.1.0, and to all subsequent releases
and modifications until otherwise indicated in new editions.
This edition replaces GC27-2226-01.
© Copyright IBM Corporation 2003, 2010.
US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract
with IBM Corp.

Contents
Figures ...............v
Tables ...............xi
Safety and environmental notices . . . xiii
General safety .............xiii
Electrical safety ............xiv
Inspecting the SAN Volume Controller for unsafe
conditions ...............xv
External device check..........xvi
Internal device checks .........xvi
Checking the grounding of SAN Volume Controller,
the uninterruptible power supply, and the
redundant ac-power switch .........xvi
Inspecting the uninterruptible power supply for
unsafe conditions............xviii
Uninterruptible power-supply requirements . . . xviii
Emergency power-off shutdown .......xix
Handling static-sensitive devices .......xix
Environmental notices and statements .....xix
Product recycling and disposal.......xix
About this guide ..........xxi
Who should use this guide .........xxi
Summary of changes ...........xxi
Emphasis ...............xxi
SAN Volume Controller library and related
publications ..............xxi
Related Web sites............xxiii
How to order IBM publications .......xxiii
Sending your comments .........xxiii
Chapter 1. Parts listing ........1
SAN Volume Controller 2145-CF8 parts .....1
SAN Volume Controller 2145-8A4 parts .....5
SAN Volume Controller 2145-8G4 parts .....8
SAN Volume Controller 2145-8F4 parts .....12
SAN Volume Controller 2145-8F2 parts .....13
Redundant ac-power switch parts .......16
2145 UPS-1U parts ............16
Power cables for the 2145 UPS-1U ......17
Chapter 2. Removing and replacing
parts ...............19
Enabling concurrent maintenance .......19
Preparing to remove and replace parts .....20
Working inside the node with the power on . . . 20
Removing and replacing SAN Volume Controller
parts.................20
Removing the cable-management arm ....20
Replacing the cable-management arm ....25
Removing the cable-retention bracket.....29
Replacing the cable-retention bracket .....34
Removing the SAN Volume Controller from a
rack ................40
Replacing the SAN Volume Controller in a rack 48
Removing the support rails for a SAN Volume
Controller ..............54
Installing the support rails for a SAN Volume
Controller ..............58
Removing the top cover .........68
Replacing the top cover .........72
Removing the service controller ......75
Replacing the service controller.......85
Replacing a disk drive and a service controller on
the SAN Volume Controller ........92
Removing and replacing the SAN Volume
Controller power-cable assembly ......92
Removing the memory modules (DIMM) . . . 94
Replacing the memory modules (DIMM) . . . 98
Removing the disk drive .........99
Replacing the disk drive.........107
Removing a solid-state drive (SSD) .....111
Replacing a solid-state drive (SSD) .....113
Removing the disk-drive backplane .....115
Replacing the disk-drive backplane .....121
Removing the CMOS battery .......128
Replacing the CMOS battery .......134
Removing the power supply .......140
Replacing the power supply .......146
Removing the power backplane ......154
Replacing the power backplane ......156
Removing and replacing the frame assembly 158
Removing and replacing the fibre-channel SFP
transceiver on a SAN Volume Controller node . 160
Removing the fibre-channel adapter assembly 161
Replacing the fibre-channel adapter assembly 168
Removing the high-speed SAS adapter ....172
Replacing the high-speed SAS adapter ....173
Removing the high-speed SAS adapter, the
adapter cable, and the solid-state drive (SSD). . 175
Replacing the high-speed SAS adapter, the
adapter cable, and the solid-state drive (SSD). . 178
Removing the disk-controller and USB riser-card
assembly ..............181
Replacing the disk-controller and USB riser-card
assembly ..............183
Removing the PCI express riser card assembly 187
Replacing the PCI express riser-card assembly 188
Removing the operator-information panel
assembly ..............188
Replacing the operator-information panel
assembly ..............196
Removing the operator-information panel cable 203
Replacing the operator-information panel cable 206
Removing the fans ..........209
Replacing the fans...........214
© Copyright IBM Corp. 2003, 2010 iii

Removing the SAN Volume Controller 2145-8F2
or SAN Volume Controller 2145-8F4 fan holder
and fan backplanes ..........220
Replacing the SAN Volume Controller 2145-8F2
or SAN Volume Controller 2145-8F4 fan holder
and fan backplanes ..........220
Removing the microprocessor .......221
Replacing the microprocessor .......228
Removing the SAN Volume Controller 2145-8F4
or SAN Volume Controller 2145-8F2 VRM . . . 239
Replacing the SAN Volume Controller 2145-8F2
or SAN Volume Controller 2145-8F4 VRM . . . 239
Removing the SAN Volume Controller system
board ...............240
Replacing the SAN Volume Controller system
board ...............254
Removing the redundant ac-power switch....267
Replacing the redundant ac-power switch ....268
Removing and replacing 2145 UPS-1U parts . . . 270
Removing and replacing the 2145 UPS-1U
power cable-retention bracket .......271
Removing the 2145 UPS-1U .......272
Replacing the 2145 UPS-1U........275
Removing the support rails for a 2145 UPS-1U 280
Installing the support rails for the 2145 UPS-1U 281
Removing the power cable from the 2145
UPS-1U ..............283
Removing the 2145 UPS-1U battery .....284
Replacing the 2145 UPS-1U battery .....286
Appendix. Accessibility .......289
Notices ..............291
Trademarks ..............293
Electronic emission notices .........293
Federal Communications Commission (FCC)
statement..............293
Industry Canada compliance statement....293
Avis de conformité à la réglementation
d'Industrie Canada ..........294
New Zealand compliance statement .....294
European Union EMC Directive conformance
statement..............294
Germany compliance statement ......294
Japanese Voluntary Control Council for
Interference (VCCI) statement .......295
People's Republic of China Class A Electronic
Emission Statement ..........295
International Electrotechnical Commission (IEC)
statement..............295
United Kingdom telecommunications
requirements ............295
Korean Class A Electronic Emission Statement 295
Taiwan Class A compliance statement ....296
European Contact Information ....297
Taiwan Contact Information .....299
Index ...............301
iv IBM SAN Volume Controller Hardware Maintenance Guide

Figures
1. Exploded view of the SAN Volume Controller
2145-CF8 node ............2
2. Exploded view of the SAN Volume Controller
2145-8A4 node ............6
3. Exploded view of the SAN Volume Controller
2145-8G4 node ............9
4. Exploded view of the SAN Volume Controller
2145-8F4 node............12
5. Exploded view of the SAN Volume Controller
2145-8F2 node............14
6. View of the redundant ac-power switch FRU 16
7. Exploded view of the 2145 UPS-1U hardware 17
8. SAN Volume Controller 2145-CF8
cable-management arm, support rails, and
associated parts ...........21
9. SAN Volume Controller 2145-CF8 release
latches and mounting screws.......22
10. SAN Volume Controller 2145-CF8 cables in the
cable-management arm ........22
11. SAN Volume Controller 2145-CF8
cable-management arm on the support arm . . 23
12. Removing the SAN Volume Controller
2145-CF8 cable-management arm mounting
bracket ..............24
13. Freeing the swing end of the SAN Volume
Controller 2145-CF8 support arm .....24
14. Removing the SAN Volume Controller
2145-CF8 cable-management stop bracket . . 25
15. Detaching the SAN Volume Controller
2145-CF8 cable-management support arm . . 25
16. Rack rear: Attaching the SAN Volume
Controller 2145-CF8 cable-management
support arm ............26
17. Rack rear: Installing the SAN Volume
Controller 2145-CF8 cable-management stop
bracket ..............26
18. Attaching the free end of the SAN Volume
Controller 2145-CF8 support arm .....26
19. Rack rear: Installing the SAN Volume
Controller 2145-CF8 cable-management arm
mounting bracket ..........27
20. SAN Volume Controller 2145-CF8
cable-management arm on the support arm . . 28
21. SAN Volume Controller 2145-CF8 cables in the
cable-management arm ........29
22. SAN Volume Controller 2145-CF8
cable-retention brackets ........30
23. SAN Volume Controller 2145-8A4 with the
cable-retention bracket installed ......31
24. SAN Volume Controller 2145-8G4 cable
retention bracket - type A ........32
25. SAN Volume Controller 2145-8G4 cable
retention bracket - type B ........32
26. The SAN Volume Controller 2145-8G4 with the
cable-retention bracket attached ......33
27. The SAN Volume Controller 2145-8G4 with
cable-retention bracket type B attached . . . 34
28. SAN Volume Controller 2145-CF8
cable-retention brackets ........35
29. Raising the SAN Volume Controller 2145-CF8
locking levers of the slide rails of the rack . . 36
30. Retaining screw on the SAN Volume
Controller 2145-8A4 node ........36
31. Installing the SAN Volume Controller
2145-8A4 cable retention bracket .....37
32. SAN Volume Controller 2145-8G4 cable
retention bracket - type A ........38
33. SAN Volume Controller 2145-8G4 cable
retention bracket - type B ........38
34. The SAN Volume Controller 2145-8G4 before
you attach the cable-retention bracket ....39
35. The SAN Volume Controller 2145-8G4 with
cable-retention bracket type B attached . . . 40
36. Attaching the cable retention bracket to the
SAN Volume Controller 2145-8F4 power cable . 40
37. Removing the SAN Volume Controller
2145-CF8 from the rack ........43
38. The captive thumbscrews that secure the node
and the shipping brackets........45
39. Removing the SAN Volume Controller
2145-8G4 from the rack ........47
40. Installing the SAN Volume Controller
2145-CF8 node in the slide rails of the rack . . 51
41. Raising the SAN Volume Controller 2145-CF8
locking levers of the slide rails of the rack . . 51
42. The captive thumbscrews that secure the node
and the shipping brackets........52
43. The captive thumbscrews that secure the node
and the shipping brackets........53
44. Aligning the SAN Volume Controller 2145-8G4
with the rack slides ..........53
45. Sliding the SAN Volume Controller 2145-8F4
into the rack ............54
46. Disengaging the SAN Volume Controller
2145-CF8 slide rails from the rear of the rack . 55
47. Removing the SAN Volume Controller
2145-CF8 slide rails from the rack .....55
48. The rail-adjustment bracket and the release tab
on the rear rail-locking carrier ......56
49. Removing the latch strike from the front of the
slide rail .............57
50. Removing the right slide rail from the front of
the rack ..............57
51. The left support rail for the SAN Volume
Controller .............58
52. Installing the SAN Volume Controller
2145-CF8 slide rails on the rack ......59
53. Installing the rear of a SAN Volume Controller
2145-CF8 slide rail in the rear of the rack . . 59
© Copyright IBM Corp. 2003, 2010 v

54. Installing the front of a SAN Volume
Controller 2145-CF8 slide rail in the front of
the rack ..............60
55. SAN Volume Controller 2145-8A4 support-rails
installation kit............60
56. A closed rail-locking carrier at the front of the
support rail for the SAN Volume Controller
2145-8A4 .............61
57. An open rail-locking carrier at the rear of the
support rail for the SAN Volume Controller
2145-8A4 .............62
58. Aligning the pins on the left front support rail
for the SAN Volume Controller 2145-8A4 with
the front mounting flange........63
59. SAN Volume Controller 2145-8G4 support rails
installation kit............64
60. Inserting the right slide rail into the rear rack
mounting flange ...........64
61. Extending the right slide rail .......65
62. Attaching the latch strike to the front of the
slide rail .............65
63. Retracting the latch-lock carrier ......66
64. Opening the front latch-lock carrier assembly 66
65. Opening the back latch-lock carrier assembly 67
66. Installing the front end of the rail .....67
67. Closing the latch-lock carrier assembly . . . 68
68. Removing the SAN Volume Controller
2145-CF8 cover ...........69
69. Removing the SAN Volume Controller
2145-8A4 cover ...........70
70. The SAN Volume Controller 2145-8G4 with fan
door open .............71
71. SAN Volume Controller 2145-8F2 or SAN
Volume Controller 2145-8F4 with fan doors
open ...............72
72. Replacing the SAN Volume Controller
2145-CF8 cover ...........73
73. Raising the SAN Volume Controller 2145-CF8
locking levers of the slide rails of the rack . . 73
74. SAN Volume Controller 2145-8G4 with the fan
door open .............74
75. SAN Volume Controller 2145-8F2 with the
access doors open ..........75
76. Left release button of a SAN Volume
Controller 2145-CF8 service controller ....77
77. Service controller for the SAN Volume
Controller 2145-CF8 with attached USB cable . 77
78. SAN Volume Controller 2145-CF8 service
controller .............78
79. Removing and replacing the USB cable in the
SAN Volume Controller 2145-CF8 service
controller .............79
80. USB service-controller cable connected to the
disk controller and USB riser card in the SAN
Volume Controller 2145-CF8 .......80
81. USB service-controller cable connector on the
USB riser card ...........81
82. SAN Volume Controller 2145-8A4 service
controller release button ........82
83. SAN Volume Controller 2145-8G4 service
controller release button ........83
84. Removing the service controller from the SAN
Volume Controller 2145-8G4 .......83
85. SAN Volume Controller 2145-8F2 or SAN
Volume Controller 2145-8F4 with fan doors
open ...............84
86. SAN Volume Controller 2145-8F2 or SAN
Volume Controller 2145-8F4 service controller . 85
87. SAN Volume Controller 2145-CF8 service
controller .............86
88. Raising the SAN Volume Controller 2145-CF8
locking levers of the slide rails of the rack . . 87
89. SAN Volume Controller 2145-8A4 service
controller .............88
90. SAN Volume Controller 2145-8G4 service
controller .............89
91. SAN Volume Controller 2145-8F2 or SAN
Volume Controller 2145-8F4 service controller . 91
92. SAN Volume Controller 2145-8F2 or SAN
Volume Controller 2145-8F4 with fan doors
open ...............91
93. Power LED on the SAN Volume Controller
models 2145-CF8, 2145-8A4, 2145-8G4, and
2145-8F4 or 2145-8F2 operator-information
panel...............93
94. SAN Volume Controller models 2145-CF8,
2145-8A4, 2145-8G4, and 2145-8F4 or 2145-8F2
power-control button .........94
95. Locating the SAN Volume Controller 2145-CF8
memory modules ..........95
96. Locating the SAN Volume Controller 2145-8A4
memory modules ..........96
97. Locating the SAN Volume Controller 2145-8G4
memory modules ..........96
98. Locating the SAN Volume Controller 2145-8F2
or SAN Volume Controller 2145-8F4 memory
modules .............97
99. Removing the memory modules .....98
100. Replacing a memory module.......99
101. SAN Volume Controller 2145-8A4 SATA disk
drive ..............100
102. Removing the SATA disk drive .....101
103. SAN Volume Controller 2145-4F2 disk drive
and front panel ...........102
104. Attaching the rails to the SAN Volume
Controller 2145-4F2 disk drive ......102
105. Boot drive for the SAN Volume Controller
2145-CF8 .............104
106. Drive-bay filler panel and disk-drive handle
for the SAN Volume Controller 2145-CF8 . . 104
107. Drive IDs for SAN Volume Controller
2145-CF8 .............105
108. SAN Volume Controller 2145-8A4 SATA disk
drive ..............106
109. Removing the SATA disk drive .....107
110. Drive-bay filler panel and disk-drive handle
for the SAN Volume Controller 2145-CF8 . . 108
111. Raising the SAN Volume Controller 2145-CF8
locking levers of the slide rails of the rack . . 109
vi IBM SAN Volume Controller Hardware Maintenance Guide

112. Attaching the rails assembly to the SATA disk
drive for the SAN Volume Controller
2145-8A4 and the SAN Volume Controller
2145-8G4 .............110
113. Service controller for the SAN Volume
Controller 2145-CF8 with attached USB cable . 112
114. Solid-state drive (SSD) for the SAN Volume
Controller 2145-CF8 .........113
115. SAN Volume Controller 2145-CF8 drive and
drive-bay filler ...........114
116. Raising the SAN Volume Controller 2145-CF8
locking levers of the slide rails of the rack . . 115
117. Boot-disk SAS cable and the high-speed SAS
cable connected to the disk backplane in the
SAN Volume Controller 2145-CF8 .....116
118. The SAN Volume Controller 2145-CF8 disk
backplane .............117
119. SAN Volume Controller 2145-8A4 SATA cable
connectors ............118
120. Air deflector for the SAN Volume Controller
2145-8A4 power supply ........118
121. SAN Volume Controller 2145-8A4 power
supply connectors ..........119
122. The SAN Volume Controller 2145-8G4
disk-drive backplane connectors .....120
123. The SAN Volume Controller 2145-8G4 SATA
disk drive and back plate .......120
124. The SAN Volume Controller 2145-CF8 disk
backplane.............121
125. Boot-disk SAS cable and the high-speed SAS
cable connected to the disk backplane in the
SAN Volume Controller 2145-CF8.....122
126. Boot-disk SAS cable routed through the blue
bulkhead clip and connected to the SAS disk
controller in the SAN Volume Controller
2145-CF8 .............123
127. Raising the SAN Volume Controller 2145-CF8
locking levers of the slide rails of the rack . . 124
128. Air deflector for the SAN Volume Controller
2145-8A4 power supply ........124
129. SAN Volume Controller 2145-8A4 power
supply connectors ..........125
130. SAN Volume Controller 2145-8A4 SATA
cables ..............126
131. The SAN Volume Controller 2145-8G4 SATA
disk drive and back plate .......127
132. The SAN Volume Controller 2145-8G4
disk-drive backplane connectors .....127
133. Location of the SAN Volume Controller
2145-CF8 CMOS battery holder .....129
134. SAN Volume Controller 2145-CF8 CMOS
battery holder ...........129
135. Locating the SAN Volume Controller
2145-8A4 CMOS battery ........130
136. Removing the SAN Volume Controller
2145-8A4 CMOS battery ........131
137. Location of the SAN Volume Controller
2145-8G4 CMOS battery holder .....132
138. SAN Volume Controller 2145-8G4 CMOS
battery holder ...........132
139. Location of the CMOS battery on the SAN
Volume Controller 2145-8F2 or the SAN
Volume Controller 2145-8F4.......133
140. SAN Volume Controller 2145-8F2 or the SAN
Volume Controller 2145-8F4 CMOS battery
holder ..............134
141. Location of the SAN Volume Controller
2145-CF8 CMOS battery holder .....135
142. SAN Volume Controller 2145-CF8 CMOS
battery holder ...........135
143. Raising the SAN Volume Controller 2145-CF8
locking levers of the slide rails of the rack . . 136
144. Locating the SAN Volume Controller
2145-8A4 CMOS battery ........137
145. Installing the SAN Volume Controller
2145-8A4 CMOS battery ........137
146. Location of the SAN Volume Controller
2145-8G4 CMOS battery holder .....138
147. SAN Volume Controller 2145-8G4 CMOS
battery holder ...........139
148. Location of the CMOS battery on the SAN
Volume Controller 2145-8F2 or the SAN
Volume Controller 2145-8F4.......140
149. CMOS battery socket .........140
150. SAN Volume Controller 2145-CF8 power
supply ..............142
151. SATA connectors on the SAN Volume
Controller 2145-8A4 system board ....143
152. Power P5 connector on the SAN Volume
Controller 2145-8A4 power supply ....144
153. The retention clip for the SAN Volume
Controller 2145-8A4 power-supply cables . . 144
154. The SAN Volume Controller 2145-8A4
power-supply ...........145
155. SAN Volume Controller 2145-8G4 power
supply ..............145
156. Removing the SAN Volume Controller
2145-8F2 power supply ........146
157. SAN Volume Controller 2145-CF8 power
supply ..............148
158. SAN Volume Controller 2145-CF8 ac, dc, and
power-error LEDs ..........149
159. Air deflector for the SAN Volume Controller
2145-8A4 power supply ........149
160. SATA connectors on the SAN Volume
Controller 2145-8A4 system board ....150
161. The retention clip for the SAN Volume
Controller 2145-8A4 power-supply cables . . 151
162. SAN Volume Controller 2145-8G4 power
supply ..............152
163. SAN Volume Controller 2145-8G4 ac and dc
LEDs ..............153
164. SAN Volume Controller 2145-8F2 power
supply ..............153
165. SAN Volume Controller 2145-8F2 or SAN
Volume Controller 2145-8F4 ac and dc power
LEDs ..............154
166. SAN Volume Controller 2145-8G4 power
backplane.............155
167. SAN Volume Controller 2145-8F4 or SAN
Volume Controller 2145-8F2 power backplane. 156
Figures vii

168. SAN Volume Controller 2145-8G4 power
backplane.............157
169. Replacing the SAN Volume Controller
2145-8F4 or SAN Volume Controller 2145-8F2
power backplane ..........158
170. Fibre-channel SFP transceiver ......161
171. Connectors on the rear of the SAN Volume
Controller 2145-CF8 .........161
172. The SAN Volume Controller 2145-CF8
fibre-channel adapter .........163
173. Removing the fibre-channel riser-card
assembly for the SAN Volume Controller
2145-CF8 .............163
174. SAN Volume Controller 2145-8A4 riser-card
assembly .............164
175. Fibre-channel SFP transceiver ......164
176. The physical port numbers for the SAN
Volume Controller 2145-8G4 ......165
177. Removing the riser-card assembly from the
SAN Volume Controller 2145-8G4.....165
178. Rear view of the SAN Volume Controller
2145-8F2 with fibre-channel ports indicated . 166
179. Rear view of the SAN Volume Controller
2145-8F4 .............166
180. SAN Volume Controller 2145-8F2 or SAN
Volume Controller 2145-8F4 PCI slot 1 card
retainer .............167
181. SAN Volume Controller 2145-8F2 riser card
and low profile adapter ........167
182. SAN Volume Controller 2145-8F2 or SAN
Volume Controller 2145-8F4 slot 2 adapter . . 168
183. Replacing the riser-card assembly for the
SAN Volume Controller 2145-8G4.....169
184. The SAN Volume Controller 2145-CF8
fibre-channel adapter .........169
185. SAN Volume Controller 2145-8A4 riser-card
assembly .............170
186. Replacing the riser-card assembly for the
SAN Volume Controller 2145-8G4.....171
187. SAN Volume Controller 2145-8F2 or SAN
Volume Controller 2145-8F4 PCI slot 1 card
retainer .............171
188. High-speed SAS adapter assembly mounted
in the back rail of the SAN Volume Controller
2145-CF8 .............173
189. Removing the high-speed SAS riser-card
assembly for the SAN Volume Controller
2145-CF8 .............173
190. Replacing the high-speed SAS riser-card
assembly for the SAN Volume Controller
2145-CF8 .............174
191. High-speed SAS adapter assembly mounted
in the back rail of the SAN Volume Controller
2145-CF8 .............175
192. High-speed SAS adapter assembly and
high-speed SAS cable in the SAN Volume
Controller 2145-CF8 .........176
193. Boot-disk SAS cable routed through the blue
bulkhead clip and connected to the SAS disk
controller in the SAN Volume Controller
2145-CF8 .............177
194. Boot-disk SAS cable and the high-speed SAS
cable connected to the disk backplane in the
SAN Volume Controller 2145-CF8.....178
195. High-speed SAS adapter assembly and
high-speed SAS cable in the SAN Volume
Controller 2145-CF8 .........179
196. Boot-disk SAS cable and the high-speed SAS
cable connected to the disk backplane in the
SAN Volume Controller 2145-CF8.....180
197. Boot-disk SAS cable routed through the blue
bulkhead clip and connected to the SAS disk
controller in the SAN Volume Controller
2145-CF8 .............181
198. USB riser-card assembly for the SAN Volume
Controller 2145-CF8 .........182
199. Disengaging the disk-controller
front-retention bracket and removing the riser
assembly and disk controller ......183
200. Engaging the disk-controller front-retention
bracket and replacing the riser assembly and
disk controller ...........184
201. USB riser-card assembly for the SAN Volume
Controller 2145-CF8 .........185
202. USB service-controller cable connected to the
disk controller and USB riser card in the SAN
Volume Controller 2145-CF8 ......185
203. Boot-disk SAS cable and the high-speed SAS
cable connected to the disk backplane in the
SAN Volume Controller 2145-CF8.....186
204. Boot-disk SAS cable routed through the blue
bulkhead clip and connected to the SAS disk
controller in the SAN Volume Controller
2145-CF8 .............187
205. Using the release tab to remove the SAN
Volume Controller 2145-CF8
operator-information panel .......189
206. SAN Volume Controller 2145-8A4
operator-information panel .......190
207. SAN Volume Controller 2145-8G4 dummy
CD/DVD drive ...........191
208. Removing the CD interposer card.....191
209. SAN Volume Controller 2145-8G4 fan 3 192
210. SAN Volume Controller 2145-8G4 air baffle 193
211. SAN Volume Controller 2145-8G4 video, USB,
and the CD/DVD cables ........194
212. SAN Volume Controller 2145-8G4
operator-information panel .......195
213. Removing the SAN Volume Controller
2145-8G4 operator-information panel....195
214. SAN Volume Controller 2145-8F4
operator-information panel .......196
215. SAN Volume Controller 2145-8F2 with
exposed operator-information panel ....196
216. Replacing the SAN Volume Controller
2145-CF8 operator-information panel....197
217. Connecting the SAN Volume Controller
2145-CF8 operator-information panel cable. . 198
218. Raising the SAN Volume Controller 2145-CF8
locking levers of the slide rails of the rack . . 198
219. SAN Volume Controller 2145-8A4
operator-information panel .......199
viii IBM SAN Volume Controller Hardware Maintenance Guide
ee

220. SAN Volume Controller 2145-8G4
operator-information panel .......200
221. SAN Volume Controller 2145-8G4 video, USB,
and the CD/DVD cables ........200
222. SAN Volume Controller 2145-8G4 air baffle 201
223. SAN Volume Controller 2145-8G4 fan 3 202
224. SAN Volume Controller 2145-8G4 dummy
CD/DVD drive ...........202
225. Replacing the operator-information panel 203
226. Disconnecting the SAN Volume Controller
2145-CF8 operator-information panel cable. . 204
227. SAN Volume Controller 2145-8A4
operator-information panel .......205
228. Connectors for the operator-information panel
on the SAN Volume Controller 2145-8A4
system board ...........206
229. Connecting the SAN Volume Controller
2145-CF8 operator-information panel cable. . 207
230. Raising the SAN Volume Controller 2145-CF8
locking levers of the slide rails of the rack . . 208
231. Connectors for the operator-information panel
on the SAN Volume Controller 2145-8A4
system board ...........209
232. SAN Volume Controller 2145-CF8 fan
locations and connectors ........210
233. Removing or replacing a fan in the SAN
Volume Controller 2145-CF8 node.....211
234. Connectors for the SAN Volume Controller
2145-8A4 heat exchange fans ......212
235. SAN Volume Controller 2145-8G4 fan doors,
locations, and connectors .......213
236. SAN Volume Controller 2145-8F2 with the
access doors open ..........214
237. SAN Volume Controller 2145-8F2 fan
locations .............214
238. SAN Volume Controller 2145-CF8 fan
locations and connectors ........215
239. Removing or replacing a fan in the SAN
Volume Controller 2145-CF8 node.....216
240. Raising the SAN Volume Controller 2145-CF8
locking levers of the slide rails of the rack . . 217
241. A close up of the SAN Volume Controller
2145-8A4 fan............218
242. Routing the SAN Volume Controller 2145-8A4
fan cable .............218
243. SAN Volume Controller 2145-8G4 fan doors,
locations, and connectors .......219
244. Removing the heat sink from the SAN
Volume Controller 2145-CF8 microprocessor . 222
245. Opening the SAN Volume Controller
2145-CF8 microprocessor-bracket frame . . . 223
246. SAN Volume Controller 2145-8A4 air baffle
and heat-exchanger assembly ......224
247. The SAN Volume Controller 2145-8A4
microprocessor bracket frame fully opened . 225
248. Removing the heat sink from the
microprocessor ...........226
249. The microprocessor release lever and bracket
frame fully opened..........226
250. Location of the microprocessor and VRM
sockets..............227
251. Opening the SAN Volume Controller
2145-CF8 microprocessor-bracket frame . . . 229
252. Closing the SAN Volume Controller 2145-CF8
microprocessor-bracket frame ......230
253. Applying thermal grease to the SAN Volume
Controller 2145-CF8 microprocessor ....230
254. Installing the heat sink on the SAN Volume
Controller 2145-CF8 microprocessor ....231
255. Raising the SAN Volume Controller 2145-CF8
locking levers of the slide rails of the rack . . 232
256. SAN Volume Controller 2145-8A4
microprocessor ...........233
257. Complete set of nine thermal grease dots on
the SAN Volume Controller 2145-8A4
microprocessor ...........234
258. Alignment pins on the SAN Volume
Controller 2145-8A4 heat-exchanger assembly. 234
259. Aligning the microprocessor with the socket 236
260. Installing the heat sink ........236
261. Microprocessor locking lever in open position 237
262. Microprocessor and heat sink locations 238
263. Location of the microprocessor and VRM
sockets..............239
264. Removing and replacing the SAN Volume
Controller 2145-CF8 system board ....242
265. Connectors that are used on the SAN Volume
Controller 2145-8A4 system board ....243
266. SAN Volume Controller 2145-8A4 SATA cable
connectors ............244
267. SAN Volume Controller 2145-8A4 power
supply connectors ..........245
268. The IDE connector on the SAN Volume
Controller 2145-8A4 system board ....245
269. Connectors for the SAN Volume Controller
2145-8A4 heat exchange fans ......246
270. SAN Volume Controller 2145-8A4 system
board and microprocessor retention module . 247
271. Connectors on the SAN Volume Controller
2145-8G4 system board ........249
272. Left air baffle on the SAN Volume Controller
2145-8G4 .............249
273. Connectors on the right front side of the SAN
Volume Controller 2145-8G4 system board . . 250
274. Disk power cable connector and power
backplane on the SAN Volume Controller
2145-8G4 system board ........251
275. Right air baffle on the SAN Volume
Controller 2145-8G4 system board ....251
276. Removing thermal grease from the SAN
Volume Controller 2145-8G4 microprocessor . 252
277. Serial and video ports on the SAN Volume
Controller 2145-8G4 .........253
278. The placement of the screws that secure the
SAN Volume Controller 2145-8G4 system
board ..............253
279. SAN Volume Controller 2145-8G4 system
board ..............254
280. Removing and replacing the SAN Volume
Controller 2145-CF8 system board ....255
281. Raising the SAN Volume Controller 2145-CF8
locking levers of the slide rails of the rack . . 256
Figures ix

282. The SAN Volume Controller 2145-8A4
microprocessor bracket frame fully opened . 258
283. SAN Volume Controller 2145-8G4 system
board ..............260
284. The placement of the screws that secure the
SAN Volume Controller 2145-8G4 system
board ..............261
285. Serial and video ports on the SAN Volume
Controller 2145-8G4 .........261
286. Installing the microprocessor ......262
287. Estimating the position of the thermal grease
dots...............263
288. Complete set of nine thermal grease dots on
the microprocessor ..........263
289. Right air baffle on the SAN Volume
Controller 2145-8G4 system board ....264
290. Connectors on the right front side of the SAN
Volume Controller 2145-8G4 system board . . 265
291. Left air baffle on the SAN Volume Controller
2145-8G4 .............266
292. Connectors on the SAN Volume Controller
2145-8G4 system board ........266
293. Attaching the mounting plates ......269
294. Power cable clips ..........270
295. 2145 UPS-1U power cable-retention bracket
hardware .............271
296. 2145 UPS-1U power cable-retention bracket 271
297. 2145 UPS-1U power cable-retention bracket 272
298. The 2145 UPS-1U front-panel assembly 273
299. 2145 UPS-1U (rear view) ........273
300. Removing the 2145 UPS-1U front panel 274
301. The 2145 UPS-1U internal-battery connector 274
302. The 2145 UPS-1U internal battery connector
with protective tape .........275
303. Mounting screws for the 2145 UPS-1U 275
304. Installing the support rails for a 2145 UPS-1U
into the rack ............276
305. Mounting screws for the 2145 UPS-1U 277
306. Removing the 2145 UPS-1U front panel 277
307. The 2145 UPS-1U internal battery connector
with protective tape .........278
308. The 2145 UPS-1U with internal battery
connectors in place..........278
309. The 2145 UPS-1U cable retention bracket
connected to the 2145 UPS-1U ......279
310. 2145 UPS-1U (rear view) ........279
311. 2145 UPS-1U front-panel assembly ....279
312. Removing the front screws from the 2145
UPS-1U .............280
313. Removing the front rail on the 2145 UPS-1U 280
314. Removing the rear rail on the 2145 UPS-1U 281
315. Installing the support rails for a 2145 UPS-1U
into the rack ............281
316. Adjusting the rail depth on the 2145 UPS-1U 282
317. Securing the rear rail on the 2145 UPS-1U 282
318. Securing the front rail on the 2145 UPS-1U 283
319. Front and back panels for the 2145 UPS-1U 284
320. Removing the 2145 UPS-1U front panel 285
321. The 2145 UPS-1U internal battery connector
with protective tape .........285
322. Removing the 2145 UPS-1U battery ....286
323. Replacing the 2145 UPS-1U battery ....287
324. The 2145 UPS-1U internal-battery connector 287
325. Replacing the 2145 UPS-1U front panel 288
xIBM SAN Volume Controller Hardware Maintenance Guide

Tables
1. Other IBM publications ........xxii
2. IBM documentation and related websites xxii
3. FRUs in the SAN Volume Controller 2145-CF8
parts assembly ............3
4. FRUs to which SAN Volume Controller
2145-CF8 service procedures do not refer . . . 5
5. FRU parts for the long-wave small form-factor
pluggable (SFP) transceiver feature .....5
6. FRUs that are exchanged within SAN Volume
Controller 2145-8A4 service procedures . . . 6
7. FRUs that are not exchanged within SAN
Volume Controller 2145-8A4 service procedures . 8
8. Distinctive characteristics of the SAN Volume
Controller 2145-8G4 versions .......9
9. FRU part numbers that are unique for the
SAN Volume Controller 2145-8G4 Rev 1
version ..............10
10. FRU part numbers that are unique for the
SAN Volume Controller 2145-8G4 Rev 2
version ..............10
11. FRUs in the SAN Volume Controller 2145-8G4
parts assembly ...........10
12. FRUs that are not referenced by SAN Volume
Controller 2145-8G4 service procedures . . . 11
13. SAN Volume Controller 2145-8F4 frame
assembly .............12
14. Items not included in the SAN Volume
Controller 2145-8F4 frame assembly ....13
15. SAN Volume Controller 2145-8F2 frame
assembly .............14
16. Items not included in the SAN Volume
Controller 2145-8F2 frame assembly ....15
17. Redundant ac-power switch .......16
18. 2145 UPS-1U part numbers .......17
19. Cable-management arm and associated parts
descriptions and quantities .......21
20. Instructions for removing the SFP transceiver 160
© Copyright IBM Corp. 2003, 2010 xi
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xii IBM SAN Volume Controller Hardware Maintenance Guide

Safety and environmental notices
Review the multilingual safety notices for the IBM®System Storage®SAN Volume Controller, redundant
ac-power switch, and the uninterruptible power supply before you install and use the product.
Suitability for telecommunication environment: This product is not intended to connect directly or
indirectly by any means whatsoever to interfaces of public telecommunications networks.
To find the translated text for a caution or danger notice:
1. Look for the identification number at the end of each caution notice or each danger notice. In the
following examples, the numbers (C001) and (D002) are the identification numbers.
CAUTION:
A caution notice indicates the presence of a hazard that has the potential of causing moderate or
minor personal injury. (C001)
DANGER
A danger notice indicates the presence of a hazard that has the potential of causing death or
serious personal injury. (D002)
2. Locate IBM Systems Safety Notices with the user publications that were provided with the SAN Volume
Controller hardware.
3. Find the matching identification number in the IBM Systems Safety Notices. Then review the topics
concerning the safety notices to ensure that you are in compliance.
4. Optionally, read the multilingual safety instructions on the SAN Volume Controller website. Go to
Support for SAN Volume Controller (2145) website at www.ibm.com/storage/support/2145, click the
current product documentation link, and then click Multi-language.
General safety
When you service the SAN Volume Controller, redundant ac-power switch, or the uninterruptible power
supply, follow general safety guidelines.
Use the following general rules to ensure safety to yourself and others:
vObserve good housekeeping in the area where the devices are kept during and after maintenance.
vFollow the guidelines when lifting any heavy object:
1. Ensure that you can stand safely without slipping.
2. Distribute the weight of the object equally between your feet.
3. Use a slow lifting force. Never move suddenly or twist when you attempt to lift.
4. Lift by standing or by pushing up with your leg muscles; this action removes the strain from the
muscles in your back. Do not attempt to lift any objects that weigh more than 18 kg (40 lb) or objects that
you think are too heavy for you.
vDo not perform any action that causes a hazard to the customer, or that makes the equipment unsafe.
vBefore you start the device, ensure that other service representatives and customer's personnel are not
in a hazardous position.
vPlace removed covers and other parts in a safe place, away from all personnel, while you are servicing
the unit.
vKeep your tool case away from walk areas so that other people will not trip over it.
vDo not wear loose clothing that can be trapped in the moving parts of a device. Ensure that your
sleeves are fastened or rolled up above your elbows. If your hair is long, fasten it.
© Copyright IBM Corp. 2003, 2010 xiii
1
1

vInsert the ends of your necktie or scarf inside clothing or fasten it with a nonconducting clip,
approximately 8 cm (3 in.) from the end.
vDo not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for your clothing.
Remember: Metal objects are good electrical conductors.
vWear safety glasses when you are: hammering, drilling, soldering, cutting wire, attaching springs,
using solvents, or working in any other conditions that might be hazardous to your eyes.
vAfter service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device
that is worn or defective.
vReinstall all covers correctly after you have finished servicing the unit.
Electrical safety
Observe these rules when working on electrical equipment.
CAUTION:
Electrical current from power, telephone, and communication cables can be hazardous. To avoid
personal injury or equipment damage, disconnect the attached power cords, telecommunication
systems, networks, and modems before you open the machine covers, unless instructed otherwise in
the installation and configuration procedures. (26)
Important: Use only approved tools and test equipment. Some hand tools have handles covered with a
soft material that does not insulate you when working with live electrical currents. Many customers have,
near their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic
discharges. Do not use this type of mat to protect yourself from electrical shock.
vFind the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet. If an
electrical accident occurs, you can then operate the switch or unplug the power cord quickly.
vDo not work alone under hazardous conditions or near equipment that has hazardous voltages.
vDisconnect all power before the following activities:
– Performing a mechanical inspection
– Working near power supplies
– Removing or installing main units
vBefore you start to work on the unit, unplug the power cord. If you cannot unplug it, ask the customer
to power off the wall box that supplies power to the device and to lock the wall box in the off position.
vIf you need to work on a device that has exposed electrical circuits, observe the following precautions:
– Ensure that another person, familiar with the power-off controls, is near you.
Remember: Another person must be there to switch off the power, if necessary.
– Use only one hand when working with electrical equipment that has the power turned on; keep the
other hand in your pocket or behind your back.
Remember: There must be a complete circuit to cause electrical shock. By observing the previous
rule, you might prevent a current from passing through your body.
– When using testers, set the controls correctly and use the approved probe leads and accessories for
that tester.
– Stand on suitable rubber mats (obtained locally, if necessary) to insulate you from grounds such as
metal floor strips and machine frames.
Observe the special safety precautions when you work with very high voltages; these instructions are
in the safety sections of maintenance information. Use extreme care when measuring high voltages.
vRegularly inspect and maintain your electrical hand tools for safe operational condition.
vDo not use worn or broken tools and testers.
xiv IBM SAN Volume Controller Hardware Maintenance Guide

vNever assume that power has been disconnected from a circuit. First, check that power has been powered
off.
vAlways look carefully for possible hazards in your work area. Examples of these hazards are moist
floors, nongrounded power extension cables, power surges, and missing safety grounds.
vDo not touch live electrical circuits with the reflective surface of a plastic dental mirror. The surface is
conductive; such touching can cause personal injury and device damage.
vDo not service the following parts with the power on when they are removed from their normal
operating places in a device. (This practice ensures correct grounding of the units.)
– Power supply units
– Pumps
– Blowers and fans
– Motor generators
– And similar units
vIf an electrical accident occurs:
– Use caution; do not become a victim yourself.
– Switch off power.
– Send another person to get medical aid.
Inspecting the SAN Volume Controller for unsafe conditions
Use caution when working in any potential safety hazardous situation that is not covered in the safety
checks. If unsafe conditions are present, determine how serious the hazards are and whether you can
continue before you correct the problem.
Before you start the safety inspection, make sure that the power is off, and that the power cord is
disconnected.
Each device has required safety items installed to protect users and IBM service personnel from injury.
This guide addresses only those items.
Important: Good judgment must also be used to identify potential safety hazards due to the attachment
of non-IBM features or options not covered by this inspection guide.
If any unsafe conditions are present, you must determine how serious the apparent hazard could be and
whether you can continue without first correcting the problem. For example, consider the following
conditions and their potential safety hazards:
Electrical hazards (especially primary power)
Primary voltage on the frame can cause serious or lethal electrical shock.
Explosive hazards
A damaged CRT face or a bulging capacitor can cause serious injury.
Mechanical hazards
Loose or missing items (for example, nuts and screws) can cause serious injury.
To inspect each SAN Volume Controller node for unsafe conditions, perform the following steps. If
necessary, see any suitable safety publications.
1. Turn off SAN Volume Controller and disconnect the power cord.
2. Check the frame for damage (loose, broken, or sharp edges).
3. Check the power cables using the following steps:
Safety and environmental notices xv

a. Ensure that the third-wire ground connector is in good condition. Use a meter to check that the
third-wire ground continuity is 0.1 ohm or less between the external ground pin and the frame
ground.
b. Ensure that the power cord is the appropriate type, as specified in the parts listings.
c. Ensure that the insulation is not worn or damaged.
4. Check for any obvious nonstandard changes, both inside and outside the unit. Use good judgment
about the safety of any such changes.
5. Check inside SAN Volume Controller for any obvious unsafe conditions, such as metal particles,
contamination, water or other fluids, or marks of overheating, fire, or smoke damage.
6. Check for worn, damaged, or pinched cables.
7. Ensure that the voltage that is specified on the product-information label matches the specified
voltage of the electrical power outlet. If necessary, verify the voltage.
8. Inspect the power-supply assemblies and check that the fasteners (screws or rivets) in the cover of the
power-supply unit have not been removed or disturbed.
9. Before connecting SAN Volume Controller to the storage area network (SAN), check the grounding.
External device check
Ensure that you perform an external device check before you install or service the SAN Volume
Controller.
To conduct an external device check, perform the following steps:
1. Verify that all external covers are present and are not damaged.
2. Ensure that all latches and hinges are in the correct operating condition.
3. If SAN Volume Controller is not installed in a rack cabinet, check for loose or broken feet.
4. Check the power cord for damage.
5. Check the external signal cable for damage.
6. Check the cover for sharp edges, damage, or alterations that expose the internal parts of the device.
7. Correct any problems that you find.
Internal device checks
Ensure that you perform an internal device check before you install or service SAN Volume Controller.
To conduct the internal device check, perform the following steps:
1. Check for any non-IBM changes that might have been made to the device. If any are present, obtain
the “Non-IBM Alteration Attachment Survey,” form number R009, from the IBM branch office.
Complete the form and return it to the branch office.
2. Check the condition of the inside of the device for any metal or other contaminants, or any
indications of water, other fluid, fire, or smoke damage.
3. Check for any obvious mechanical problems, such as loose components.
4. Check any exposed cables and connectors for wear, cracks, or pinching.
Checking the grounding of SAN Volume Controller, the uninterruptible
power supply, and the redundant ac-power switch
Ensure that you understand how to check the grounding of a SAN Volume Controller, the uninterruptible
power supply, and the optional redundant ac-power switch feature.
To test the grounding of a SAN Volume Controller node, perform the following steps. Follow the steps
for the SAN Volume Controller configuration that you are using. Before you start, confirm that you know
xvi IBM SAN Volume Controller Hardware Maintenance Guide

the SAN Volume Controller model type, the uninterruptible power-supply type, and whether you are
using redundant ac power. Determine the location of the signal cables that are attached to the SAN
Volume Controller.
When you are asked to test the grounding continuity, use your local procedures to perform the test. The
test is successful if the measured resistance is 0.1 ohm or less.
Attention: Some electrical circuits can be damaged if the external signal cables are present at the SAN
Volume Controller while it is undergoing a grounding test.
1. Ensure that the SAN Volume Controller node is powered off. See MAP 5350: Powering off a SAN
Volume Controller node in the IBM System Storage SAN Volume Controller 2145 Troubleshooting Guide.
2. If the uninterruptible power supply is a 2145 UPS, ensure that other SAN Volume Controller nodes
that are powered from the uninterruptible power supply are powered off.
3. Use the power button to power off the uninterruptible power supply.
4. Disconnect all signal cables from the SAN Volume Controller node, which includes the following
cables:
vThe fibre-channel cables
vThe Ethernet cable or cables
vThe serial cable that is connected to the uninterruptible power supply
5. Disconnect all signal cables from the uninterruptible power supply. If the uninterruptible power
supply is a 2145 UPS, there might be multiple signal cables.
6. If the uninterruptible power supply is a 2145 UPS, disconnect any power cables that are connected to
SAN Volume Controller nodes, except the one that is being tested.
7. If redundant ac power is not used, disconnect the uninterruptible power-supply power cable from
the site power-distribution unit.
8. If redundant ac power is used, turn off any SAN Volume Controller that is being supplied from the
redundant ac-power switch, and remove the power cable to this system from the redundant
ac-power switch.
9. If redundant ac power is used, disconnect both input power leads from the site power distribution
units.
10. If redundant ac power is not used, test the grounding continuity between a conductive area on the
SAN Volume Controller frame and the ground pin on the plug of the uninterruptible power-supply
input-power cable.
11. If redundant ac power is used, test the grounding continuity between a conductive area on the SAN
Volume Controller frame and the ground pin on the plug of the main power cable of the redundant
ac-power switch. If the test is successful, test the grounding continuity between a conductive area on
the SAN Volume Controller frame and the ground pin on the plug of the backup power cable of the
redundant ac-power switch. Both tests must be successful.
12. After you have completed testing the grounding continuity, perform one of the following procedures,
depending on the outcome of the test.
vIf the test is successful, reconnect any cables that were removed, and power on any
uninterruptible power-supply units and SAN Volume Controller nodes that were powered off.
vIf the test was not successful, ensure that all cables are securely connected. If the test still fails, test
the individual system components. Before you test the individual components, remove all cables
from the components. If any component test fails, replace the component. After each component
has been tested and the failing ones have been replaced, repeat the complete system test by
returning to step 1.
Test the components in the following order:
a. The SAN Volume Controller node, from the frame to the ground pin of the input power
receptacle
Safety and environmental notices xvii

b. The uninterruptible power supply from the ground pin of the input power receptacle to the
ground conductor of the output power receptacle
c. If used, the redundant ac-power switch from the ground pin of the main input power
receptacle to the ground conductor of the output power receptacle, and from the ground pin of
the backup input power receptacle to the ground conductor of the output power receptacle
d. The SAN Volume Controller node to uninterruptible power-supply power-cable assembly,
between the two ground conductors of the power cable
e. The uninterruptible power-supply input-power cable, between the two ground conductors of
the power cable
f. If used, the redundant ac-power switch main input-power cable, between the two ground
conductors of the cable
g. If used, the redundant ac-power switch backup input-power cable, between the two ground
conductors of the cable
Inspecting the uninterruptible power supply for unsafe conditions
Ensure that you take the time to inspect the uninterruptible power supply for unsafe conditions.
Consider the following conditions and their potential safety hazards:
Electrical hazards (especially primary power)
Primary voltage on the frame can cause serious or lethal electrical shock.
Explosive hazards
A bulging capacitor can cause serious injury.
Mechanical hazards
Loose or missing items (for example, nuts and screws) can cause serious injury.
Use caution when working in a potential safety hazard that is not covered in the safety checks. If unsafe
conditions are present, determine how serious the hazards are and whether you can continue before you
correct the problem.
Using the following inspection checklist as a guide, inspect the uninterruptible power supply for unsafe
conditions. If necessary, see any suitable safety publications.
1. If any equipment has been damaged during the shipment, keep the shipping cartons and packing
materials.
2. To file a claim for the shipping damage, perform the following steps:
a. File with the carrier within fifteen days of receipt of the equipment.
b. Send a copy of the damage claim within fifteen days to your service support representative.
Uninterruptible power-supply requirements
Ensure that you comply with the requirements for the uninterruptible power supply.
The following list describes requirements for the 2145 UPS-1U:
vThe voltage that is supplied to the 2145 UPS-1U must be 200-240 V single phase.
vThe frequency that is supplied must be 50 or 60 Hz.
Note: The 2145 UPS-1U has an integrated circuit breaker and does not need external protection.
xviii IBM SAN Volume Controller Hardware Maintenance Guide