IBM Redbooks ServeRAID-MR10M, Руководство пользователя

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6-14 Using the Intelligent Battery Backup Unit
Attention: Be sure to ground yourself before you touch the controller
and the iBBU.
1. Shut down the computer, turn off the power, and unplug the power
cords.
2. Remove the cover from the computer according to the instructions in
the system user’s manual so that you can access the RAID
controller.
3. Ground yourself before you touch the controller.
4. Unplug all cables from the controller, remove the screw attaching the
bracket to the computer case, and carefully remove the failed
controller from the slot.
5. Remove the BBU from the failed controller.
6. Install the iBBU on the replacement controller.
Note: See Section 5.1, “Installing the iBBU on the ServeRAID-
MR10M Controller” for instructions on how to install a iBBU
on your controller and install the controller in a system.
7. Install the replacement controller in the computer and connect it to
the drives.
8. Replace the computer cover and reconnect the power cords. Turn on
the power to the computer.
The replacement controller will then read the disk configuration into
NVRAM and flush the cached data to the logical drives.
6.4 Resolving a Configuration Mismatch
If the replacement controller has a previous configuration, this message
displays during the power-on self-test (POST):
Unresolved configuration mismatch between disk(s) and NVRAM
on the adapter
A configuration mismatch occurs when the configuration data in the
NVRAM and the configuration data on the drives are different. To resolve
this, update the configuration data in the NVRAM with the data from the
physical disk. To update the configuration data, follow these steps: