IBM DS4700 manual Removing an E-DDM, Removing a dc power supply and fan unit

Note: The lever rotates upward or downward 90°, depending on whether the dc power supply and fan unit you are removing is in the left or right dc power supply and fan unit bay.

Figure 23. Removing a dc power supply and fan unit

3.Place the dc power supply and fan unit on a level surface.

4.Repeat step 1 on page 44 through step 3 for the second dc power supply.

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 55 on page 194 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 24 on page 46.

Chapter 2. Installing the storage subsystem 45