Chapter 5: Subsystem Maintenance and Upgrading
5.2
Replacing a Controller Module
IMPORTANT!
The docking connectors on the controller module are very delicate
and the connector pins can be broken easily. Do not touch the
connector pins. Visually examine each connector pin before
inserting the controller module into the subsystem. A broken pin
may damage the subsystem backplane board and cause a
subsequent system crash.
5.2.1 Considerations
The RAID controller contains a DIMM module. It is not
recommended to re-use the DIMM module extracted from a
failed controller unless you have a similar RAID subsystem that
can be used to test a used module. You can contact your vendor
for sending the failed controller in for repair.
Only a controller module within a dual-controller subsystem can
be replaced online while the subsystem is servicing I/Os.
When replacing the controller module, always remember that the
controller board is one of the most sensitive components in the
subsystem. All previously stipulated safety precautions (see
Section 2.3
) must be strictly adhered to. Failure to adhere to
these precautions can result in permanent damage to the
controller board, resulting in lengthy delays.
The BBU module is installed in a module slot located in the upper
center of the controller module. Make sure the BBU module is
installed properly into the module slot before the controller is
reinstalled into the subsystem.
Replacing a Controller Module
5-3
