along the sides of the power supply and fan unit bay.After the guide pins fit into
the notches and power supply and fan unit fits snugly into the slot, push the
lever upward or downward 90° depending on whether the power supply fan is
inserted in the left or right bay to fully latch it into place. Push the front of the
power supply and fan unit in gently to make sure that it is fully seated.
3. Repeat step 1 on page 43 and step 2 on page 43 to replace the second power
supply and fan unit.
Replacing an E-DDM
Complete the following steps to replace the hot-swap E-DDMs that you removed
before the installation.
Attention: After you remove an E-DDM CRU, wait 70 seconds before replacing or
reseating the E-DDM CRU to allow the E-DDM to properly spin down. Failure to do
so might cause undesired events.
Note: Use Table24 on page 166 to verify the proper replacement locations of your
E-DDMs.
1. Lift up on the handle and gently push the E-DDM CRU into the empty bay until
the hinge of the tray handle latches beneath the storage subsystem bezel, as
shown in Figure 23.
2. Push the tray handle down until the latch clicks into place.
3. Repeat step 1 and step 2 to replace additional E-DDMs.
Latch
Figure23. Replacing an E-DDM
44 IBM System Storage DS5020 Storage Subsystem: Installation, User’s, and Maintenance Guide