Removing The Controller Battery - IBM TotalStorage DS4300 Installation, User's, And Maintenance Manual

Battery
Figure 103. Removing the controller battery
9. Remove the screw that holds the battery access panel. Carefully slide the
access panel toward the front to unlatch it from the three pins mounted on the
RAID controller bottom panel.
10. Remove the battery unit and place it on a dry, level surface. If this is a battery
replacement, then replace the old battery with the new one and go to step 17
on page 139.
11. Unpack the new RAID controller.
Set the RAID controller on a dry, level surface away from magnetic fields. Save
the packing material and documentation in case you need to return the RAID
controller.
12. Place the replacement RAID controller CRU bottom up on a flat surface. Using
a #2 Phillips head screwdriver, remove the six screws (three on each side of
the RAID controller) that hold the RAID controller bottom panel to the sides of
the RAID controller, as shown in Figure 102 on page 138.
13. Slide the RAID controller bottom panel away from the front side of the RAID
controller (away from the SFP slots and black center latch) to unlatch it from
the side panels.
14. Carefully flip over the RAID controller bottom panel.
15. Remove the screw that holds the battery access panel. Carefully slide the
access panel toward the front to unlatch it from the three pins mounted on the
RAID controller bottom panel.
16. If DHCP/BootP was used to automatically set the IP address of the controller,
record the MAC address of the upgrade controller and modify the existing
DHCP/BootP record of the RAID controller to be upgraded with the new MAC
address. Failure to modify the DHCP/BootP record will result in problems trying
to manage the storage subsystem using the existing IP address. This step
must be performed before you insert the upgrade controller into the DS4000
storage subsystem.
17. Position the battery inside the replacement RAID controller.
18. Reassemble the battery access panel to the RAID controller bottom panel by
aligning it with the three pins on the RAID controller bottom panel. Slide the
Battery Harness
Two-Pin
Chapter 5. Installing and replacing components
139