IBM manual Removing a controller from the DS4700 Express

Wire tab

Protective cap

90o

SFP module

F10ug010

Figure 106. Unlocking the SFP module latch - wire variety

c. With the SFP latch in the unlocked position, extract the SFP module.

vFor SFP modules that contain plastic tabs, slide the SFP module out of the port.

vFor SFP modules that contain wire tabs, grasp the wire latch and pull the SFP module out of the minihub port.

d.Replace the protective cap on the SFP module.

e.Place the SFP module into a static-protective package.

f.Replace the protective cap on the port.

8.Squeeze the controller latch and pull the lever open 90° (so that the lever is horizontal) to release the controller from the latch. The controller latch is a coral colored tab on the lever.

Note: The lever rotates upward or downward 90°, depending on whether the controller you are removing is the right or left controller CRU.

9.Slowly pull the lever away from the chassis to remove the controller from the bay. Use two hands when releasing the controller levers. Figure 107 shows the controller sliding from the storage subsystem chassis.

ds470010

Lever

Figure 107. Removing a controller from the DS4700 Express

10.If the new controller does not have the cache battery backup unit already installed, follow the instructions in “Replacing a battery unit” on page 175 to remove the cache backup battery from the existing controller unit and insert it into the new controller CRU.

11.Install the new controller.

148IBM System Storage DS4700 Express Storage Subsystem: Installation, User’s and Maintenance Guide