Seagate Exos CORVAULT Hardware Installation And Maintenance Manual page 72

9. If you are replacing all system fan modules, repeat the entire process for each of them.
10. Verify the system fan module fault LED is steady amber when the cooling fans began spinning, then goes out when
the cooling fans reach their optimal rotational speed.
11. Return to the front panel of the storage enclosure and verify that the Fault-Rear panel LED is not steady amber.
Replace a power supply unit
The two (2) power supply units (PSUs) provides power to the storage enclosure within the following specifications: 200-
240VAC at 50- 60Hz.
An important feature of the storage enclosure design is redundancy. You can still maintain continuous operation during
the replacement of a single PSU, as long as it is within the time limit of six (6) minutes.
CAUTION If you remove any FRU while the storage enclosure is powered up, you must replace it with a known
good spare within the allotted time for that FRU. If you do not replace the FRU and, when applicable, close the related
cover within the identified time limit, you void the product warranty and the storage enclosure might overheat, causing
equipment failure and possible data loss.
CAUTION Do not remove covers from any FRU. There is a danger of electric shock inside. Return the FRU to your
supplier for repair.
To remove and replace a power supply unit:
1. Use your management interface to halt all data input and output operations to the storage enclosure.
2. If you plan on removing both PSUs, properly shut down the storage enclosure.
3. Retrieve the new PSU in its static-protected container, ready to access and use it upon removal of the faulty one.
4. Facing the rear of the enclosure, disconnect the provided right-angle power connector from the faulty PSU or both
PSUs for complete removal of power from the power distribution unit (PDU).
5. Press the latch tab of the PSU handle down, then outward to access the PSU handle.
72 Chapter 7 In-service field maintenance