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v The cache battery is not included with the controller FRU.
v Ensure that you replace the failed controller with the appropriate FRU. There are
v After the new controller in a FAStT600 single-controller storage server (Model
Figure 67. RAID controller levers and labels
For information about the RAID controller cache memory and rechargeable battery,
see "Cache memory and RAID controller battery" on page 54.
Replacing a RAID controller
When instructed to do so by the storage-management software, replace a RAID
controller that has failed.
Important: The replacement RAID controller CRU does not come with a RAID
Note: Avoid operating the FAStT600 Storage Server with controllers of different
To replace a RAID controller, perform the following steps:
no protection mechanisms to block out an incorrect FRU from being inserted into
FAStT600 controller slots. Unpredictable results can occur when nonmatching
controller FRUs are present in a single FAStT600 chassis.
6LU/6LX) completes the boot process, its WWNN will change. If you have any
applications that rely on the previous WWNNs, such as FC switch zoning
definitions, you must update the applications with the new WWNNs.
Ethernet address label
Levers
controller cache battery installed, nor the mounting hardware that holds
the battery in place inside the RAID controller. You must remove the
cache battery that is inside the existing RAID controller that you are
replacing, and install that battery inside the replacement RAID controller
CRU, using the battery unit mounting hardware taken from the existing
controller. The steps to remove and replace the battery are included in
the following procedure.
cache sizes. Operating the storage server with controllers of different cache
size will disable caching and might adversely affect performance.
1. Check the Storage Manager client online Help for instructions on RAID
controller failure-recovery procedures. Follow the steps provided in the
software documentation before continuing with step 2.
2. Label each cable that connects to the RAID controller that has failed. This
ensures that all cables will be properly reconnected to the new RAID controller.
Battery-access panel (on bottom)
Chapter 5. Installing and replacing components
87
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