You can remove a memory module from a SAN Volume Controller 2145-DH8 node.
Before you begin
Review the following information before you begin the removal process.
The memory modules are electrostatic-discharge (ESD) sensitive. Take precautions to avoid damage
from static electricity.
Locate the memory module that you want to replace. You do not have to replace all of the
modules.
If more than one 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. If the fault is isolated only to the bank of modules instead of to a particular module,
exchange all modules of the bank.
Attention: If a memory DIMM failure
to any node is encountered during the update
process, you might be required to remove and replace a memory module. Steps to
recover the update when a DIMM failure occurs
are described in Updating the system software.
The SAN Volume Controller 2145-DH8 node uses
four modules in DIMM slots 1, 4, 9, and 12 (and four modules in slots 13, 16, 21, and 24 if the second
processor is fitted), as shown in Figure 1.Figure 1. Locations of the DIMM connectors on the system board
About this task
Perform the following steps to remove the memory modules:
Procedure
Follow the procedure in MAP 5350: Powering off a node to verify that hosts will not lose access to
data in volumes before you power off the node.
Remove the node from the rack and place it on a flat, static-protective
surface. See Removing a node from a rack.
