IBM System Storage Subsystem DS5020 - Manual (Page 69)

3. Place the power supply and fan unit on a level surface.
4. Repeat step 1 through step 3 for the second power supply and fan unit.
Removing an E-DDM
Complete the following steps to remove a hot-swap E-DDM:
Note: The E-DDM comes installed in a drive tray. Do not attempt to detach the
E-DDM from the tray.
1. Use Table 24 on page 166 to record the location and identify your E-DDMs. You
must record this information to be able to replace the E-DDMs in their original
order before they were removed.
2. Release the latch on the E-DDM CRU by pressing on the inside of the bottom
of the tray handle.
3. Lift the closed latch to its open position. (The latch is at a 90° angle to the front
of the E-DDM when open.)
4. Pull the E-DDM out of the bay, as shown in Figure 18.
Lever
Latch
Figure 17. Removing a power supply and fan unit
Latch
Figure 18. Removing an E-DDM CRU
Chapter 2. Installing the storage subsystem 39