Owners Manual

Table Of Contents
2. Remove the screws from the sides of the RAID controller module.
3. While pressing the indent, slide the cover in the direction of the arrow and lift it away from the RAID controller module.
Figure 21. Opening and closing the RAID controller module
a. screw (2)
b. indent
c. RAID controller module
Closing the RAID controller module
CAUTION:
Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by
your warranty. Read and follow the safety instructions that are shipped with your product.
1. Place the cover onto the RAID controller module and offset it slightly towards the back, so that the hooks on the cover fit
over the corresponding slots on the RAID controller module.
2. Slide the cover toward the front till it snaps into place.
3. Replace the screws on the RAID controller module.
4. Install the RAID controller module in the chassis.
RAID controller module backup battery unit
The battery backup unit provides backup power to the RAID controllers in case of power failure. It ensures power backup for at
least 30 minutes to facilitate moving of memory stored in the controller cache to persistent storage.
Removing the RAID controller module backup battery unit
You must replace a faulty battery backup unit immediately to ensure availability of backup power in case of power failure.
CAUTION:
Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by
your warranty. Read and follow the safety instructions that are shipped with your product.
1. Identify and locate the controller for which the battery backup unit has failed.
NOTE: The battery fault indicator for the affected controller lights amber.
Installing and removing system components 29