IBM TotalStorage DS4100, Installation, User'S, And Maintenance Manual

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Go to “Manually upgrading the firmware for the DS4100
single-controller storage server.”
28. For the DS4100 base storage server: See the DS4000 Storage Manager
client online help for instructions on bringing the controller online. The RAID
controller replacement procedure for the DS4100 base storage server is
completed.
29. For the DS4100 single-controller storage server:
Because the replacement RAID controller has a different WWNN that the
original RAID controller, you must perform the following tasks in order to bring
the DS4100 single-controller storage server to running (optimal) state after you
replace the RAID controller.
v Reboot the host server that has mapped logical drives from the DS4100
single-controller storage server.
Rebooting the host server enables the multipath fail-over to recognize the
logical drives under the new WWNN. In addition, if your multipath driver
uses the WWNN of the controller as part of the LUN identification, you may
have to reconfigure the LUN fail-over/failback path information.
v
Use DS4000 Storage Manager to rediscover the new RAID controller.
To rediscover the new RAID controller, remove the existing DS4100
single-controller storage server entry in the management domain of the
DS4000 Storage Manager client Enterprise Management Window (EMW),
and then add the DS4100 single-controller storage server back into the
management domain using the in-band or out-of-band management method.
See step 6 on page 104.
v
Re-enable the premium feature keys.
After you replace the RAID controller in a DS4100 single-controller storage
server, all of the enabled premium feature keys are displayed as being
out-of-compliance. Use the existing key files to re-enable the premium
feature keys.
v
If you create zones using the WWNN, update your zoning definitions with
the new WWNN for the replacement RAID controller.
If you are able to to make a management connection with DS4000 Storage
Manager to the replacement RAID controller, then the RAID controller
replacement procedure for the DS4100 single-controller storage server is
complete.
If none of these actions enables you to make a management connection with
DS4000 Storage Manager to the replacement RAID controller, then call IBM
support for help.
Manually upgrading the firmware for the DS4100 single-controller
storage server
You will need the most recent printout of your storage subsystem profile to perform
this procedure. If you do not have a printout available, contact IBM technical
support to determine the controller firmware and NVSRAM version numbers
recorded in your storage subsystem profile.
Attention: This procedure is not self-contained. Perform this procedure only if
directed to do so in step 27 on page 101. At the end of this procedure, continue
with step 29 in the RAID controller replacement procedure.
Be sure that the BOOTP server configuration includes the MAC address you
recorded for the new controller. Refer to step 17 on page 100.
Chapter 5. Installing and replacing components
103