IBM DCS3700, Installation, User'S, And Maintenance Manual

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4. Slide the ESM out of the bay and set it aside.
5. Make sure that the release levers on the ESM are in the open position.
6.
Slide the ESM into the bay until it stops.
7. Push the release levers to the closed position.
8.
Connect the SAS cables to the ESM.
9. Turn on the power.
10. Go to http://www.ibm.com/servers/storage/support/ to check for ESM code updates. For more
information, see the download instructions on page 1.
Replacing a fan assembly
Use this procedure to replace a failed fan assembly. To preserve the optimal airflow, do not remove a
failed fan assembly FRU from the storage expansion enclosure until you are ready to replace it with a
new FRU.
Attention:
v
To prevent damage from overheating, replace a failed fan assembly FRU within 5 minutes of removal.
If replacing it will take longer than 5 minutes, stop all I/O activity to the storage expansion enclosure
and turn off the power until you complete the replacement.
v
If one of the fan assemblies has failed, the remaining fan assembly will operate at maximum fan speed.
1. Remove the fan assembly to be replaced by completing the following steps:
a. At the rear of the storage expansion enclosure, remove the fan assembly (see Figure 82 on page
121) by pressing on the locking tab holding the fan assembly handle in place; then, pull the fan
assembly handle toward you.
Figure 81. Removing an environmental service module
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IBM System Storage DCS3700: Installation, User, and Maintenance Guide