IBM ServeRAID M5025, User Manual

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Replacing the Battery Backup Unit 6-13
6.2 Replacing the Battery Backup Unit
For optimal performance, replace the battery backup unit once a year.
See the
Warranty and Support Information document for the replacement
battery part number.
When you install a new iBBU, the battery recharge cycle counter for the
iBBU is automatically set to zero. For instructions on installing the iBBU,
see
Section 5.1, “Installing the iBBU on the ServeRAID M5025
Controller.”
CAUTION:
The battery is a lithium ion battery. To avoid possible explosion, do not
burn. Exchange only with the IBM-approved part. Recycle or discard the
battery as instructed by local regulations. In the United States, IBM has a
process for the collection of this battery. For information, call 1-800-426-
4333. Have the IBM part number for the battery unit available when you
call. (C007)
6.3 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:
1. Press CTRL+M when prompted during boot-up to access the
BIOS CU.
2. Select Configure -> View/Add Configuration .