Rorke Data Galaxy HDX2 GHDX2-2430S-24F4D - Manual (Page 101)

Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual
5-6 Subsystem Maintenance
positions, the controller module will automatically be eased out
of the controller module bay in the subsystem.
Figure 5 -3: Removing the Controller Module
Step 7. Carefully pull the controller module out of the subsystem
chassis keeping one hand underneath to support the weight of
the module.
5.2.4 DIMM Module Replacement
If a DIMM module fails or a DIMM module with a higher memory capacity is
required, the onboard DIMM module can be replaced.
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DIMM module replacement: When replacing DIMM module, make sure
that the subsystem is correctly powered down and disconnect all the cables
connected to the controller prior to removing the controller module.
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Procedures on replacing the DIMM module: For complete illustrated
instructions on how to replace a DIMM module, please refer to Chapter 2.
5.2.5 Replacing the Controller Module
If the controller module has failed, it must be replaced. To replace a failed
controller module:
Step 1. Remove the BBU module (if it was installed) from the faulty
controller, and then remove the faulty controller itself. Unless
you have a similar subsystem to test whether the DIMM
module on the faulty controller is functional, it is not
recommended to re-use the DIMM module. (See Section 5.2.4)