Seagate Exos E Series Replacing

Replacing a Power Supply Unit in a 5U Enclosure
Exos X 4006 & Exos E Series Storage Systems, and AP Integrated Storage Servers
This document contains the steps in replacing a power supply unit (PSU) for a 5U enclosure. More detailed information is
found in the Hardware Maintenance and Installation Guide (HMIG) for the Exos X 4006 & Exos E series storage systems,
and the AP Integrated Storage Servers. You can find the documents located at
storage-systems.
To replace a power supply unit:
1. Retrieve the new PSU in its static-protected container, ready to access and use the new PSU immediately upon
removal of the faulty one. Chapter 11 In-service field maintenance for 5U enclosures 116
2. After you complete the proper shut down of the application and when you are ready to power down the storage
enclosure, face the rear of the rack cabinet and switch off the power for the faulty PCM or PSU.
3. Disconnect each power connector from the power distribution unit (PDU).
4. Complete the following actions to remove the faulty PSU:
a. Release the PSU power cord from its secure tie, and then disconnect the power cord from the PSU connector.
b. Press the PSU release latch to the right to release the PSU from the midplane.
c. Use one hand to support the weight of the PSU and the other to pull the handle outward and withdraw the
PSU.
d. Place it in a static-protected location.
5. Complete the following actions to replace the faulty PSU with a tested good one:
a. Facing the rear of the storage enclosure, orient the new PSU with the latch to the left.
Power supply unit removal
Replacement power supply unit
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