Intel SRCSAS18E User Manual

17

The Intel

®

 RAID Portable Cache Module 2 (AXXRPCM2) is a cache memory module 

with an integrated battery pack. The module provides an uninterrupted power source to 

the module if power is unexpectedly interrupted while cached data is still present. If the 

power failure is the result of the RAID Controller SRCSAS18E itself failing, then the 

Intel

®

 RAID Portable Cache Module 2 can be moved to a new controller and the data 

recovered. The replacement controller must have a cleared configuration.

Perform the following steps to replace a failed controller with data in the transportable 

battery backup unit.

1. Power-down the system and drives.
2. Remove the failed controller from the system.
3. Remove the Intel

®

 RAID Portable Cache Module 2 from the failed controller.

4. Insert the new Intel

®

 RAID Portable Cache Module 2 into the replacement controller.

5. Connect the battery cable to the connector on the Intel

®

 RAID Portable Cache 

Module 2,

6. Insert the replacement controller into the system.
7. Power-on the system. The controller then reads the disk configuration into NVRAM 

and flushes cache data to the logical drives.

If the replacement controller has a previous 

configuration, a message displays during the power-on self-test (POST) stating that there 

is a configuration mismatch. A configuration mismatch occurs when the configuration 

data in the NVRAM and the hard disk drives are different. You need to update the 

configuration data in the NVRAM with the data from the hard disk drive.

Perform the following steps to resolve the mismatch.

1. Press <Ctrl> <G> when prompted during bootup to access the BIOS Configuration 

Utility.

2. Select Configure—>View/Add Configuration.
3. This gives you the option to view the configuration on both the NVRAM and the hard 

drive disk.

4. Select the configuration on disk.
5. Press <Esc> and select YES to update the NVRAM.
6. Exit and reboot.