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CAUTION:
Disconnect the power cord before replacing the power supply and fan unit.
Complete the following steps to replace the power supply and fan units that you
removed before the installation:
1. Slide one power supply and fan unit into the storage subsystem. Be sure to
Figure 20. Replacing a power supply and fan unit
2. As you slide the power supply and fan unit into the empty slot, make sure the
3. Repeat step 1 and step 2 to replace the second power supply and fan unit.
Replacing an EV-DDM
Complete the following steps to replace the hot-swap EV-DDMs that you removed
before the installation.
Attention:
or reseating it to allow the EV-DDM to properly spin down. Failure to do so may
cause undesired events.
Note: Use Table 37 on page 146 to verify the proper replacement locations of your
40
IBM System Storage DS4200 Express Storage Subsystem: Installation, User's and Maintenance Guide
replace the power supply and fan units so that the lever on each power supply
and fan unit opens toward the interior of the storage subsystem, as shown in
Figure 77 on page 127. Do not force fit. The power supply and fan unit is
designed to prevent it from being inserted into the chassis incorrectly.
Attention:
Be sure that the lever is pulled straight out as you slide the power
supply and fan unit into the storage subsystem, as shown in Figure 20. The left
and right power supply and fan units are seated in the DS4200 Express chassis
in opposite orientations. If you cannot fully insert the power supply and fan unit
into the power supply and fan unit bay, flip it 180° and reinsert it.
Lever
guide pins on the side of the power supply and fan unit fit into the notches
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. Then gently push the
front of the power supply and fan unit to ensure that it is fully seated.
After you remove a EV-DDM CRU, wait 70 seconds before replacing
EV-DDMs.
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