Controller Battery-Access Panel Screws; Pull-Rings For Removing A Controller - IBM TotalStorage DS4300 Installation, User's, And Maintenance Manual

Figure 101. Pull-rings for removing a controller
Figure 102. Controller battery-access panel screws
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IBM TotalStorage DS4300 Fibre Channel Storage Subsystem: Installation, User's, and Maintenance Guide
b. Grasp the pull-rings; then pull on the levers and remove the RAID
controller.
6. To access the cache battery, place the 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.
Note: Before you move the cache battery from your old controller to your
replacement controller, read the detailed instructions in this procedure.
7. 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.
8. Carefully flip over the RAID controller bottom panel. Disconnect the battery
harness on the battery from the two-pin connector on the controller board, as
shown in Figure 103 on page 139.