IBM SAN Volume Controller, Hardware Maintenance Manual

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v
SAN Volume Controller 2145-8F4 or SAN Volume Controller 2145-8F2: These modules are numbered
1
through
8
, as shown in Figure 98.
Note: If more than one SAN Volume Controller 2145-8G4, SAN Volume Controller 2145-8F4, or SAN
Volume Controller 2145-8F2 DIMM is indicated by the light path diagnostics, replace the DIMMs
one-at-a-time, starting at the lowest numbered DIMM slot that is indicated by the diagnostics.
Removing memory modules
This topic describes how to remove the memory modules.
Perform the following steps to remove the memory modules:
1. Follow the procedure in MAP 5350 in the IBM System Storage SAN Volume Controller 2145
Troubleshooting Guide to verify that the node data is mirrored and synchronized, and that there are no
dependent volumes before turning off the node.
2. Remove the node from the rack and place it on a flat, static-protective surface. See “Removing the
SAN Volume Controller from a rack” on page 40.
3.
Remove the top cover. See “Removing the top cover” on page 68.
Attention: If the fault has been isolated only to the bank of modules instead of to a particular
module, exchange both modules of the bank. Otherwise, if you need to remove fewer memory
modules, see “Locating memory modules” on page 94. If more than one SAN Volume Controller
2145-8G4, SAN Volume Controller 2145-8F4, or SAN Volume Controller 2145-8F2 DIMM is indicated
by the light path diagnostics, replace the DIMMs one-at-a-time, starting at the lowest numbered
DIMM slot that is indicated by the diagnostics.
4. Open the clips
2
by pressing them outward, as shown in Figure 99 on page 98. This action pulls the
memory module
3
out of the connector.
5
6
7
8
1
2
3
4
svc00128
Figure 98. Locating the SAN Volume Controller 2145-8F2 or SAN Volume Controller 2145-8F4 memory modules
Chapter 2. Removing and replacing parts
97