In-Service Field Maintenance; Table 7 Time Limits For Fru Replacement - Seagate Exos CORVAULT Hardware Installation And Maintenance Manual

7

In-service field maintenance

You may service the identified storage enclosure FRUs and still maintain continuous operation during the replacement,
but with two very important qualifiers:
You must determine whether your system allows for continuous operation during service replacement of the storage
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enclosure disk drives without interrupting access to enclosure file systems.
You must complete the replacement in the allotted time, replacing only one FRU at a time. The storage enclosure
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design provides for redundancy, so the loss of a single FRU does not impact functionality for a limited time.
The tasks identified in this chapter first cover FRUs in the main bay, followed by FRUs in the auxiliary bay, and finally,
FRUs in the rear panel area. It is absolutely essential you adhere to all safety precautions when servicing storage
enclosure FRUs.
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 When performing maintenance on the storage enclosure or its components:
Observe the caution label affixed to each disk drive or FRU prior to handling or replacing it.
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Do not remove a defective FRU until you have its functional replacement ready for insertion.
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To adhere to safety precautions when replacing a FRU in a storage enclosure:
1. Replace any defective FRU with a fully operational one as soon as possible.
2. Replace any defective FRU within the identified replacement time to minimize air loss and maintain optimum
cooling within the storage enclosure.

Table 7 Time limits for FRU replacement

Defective FRU
Main bay
Disk drive, LFF or SFF
SAS expander module
Auxiliary bay
Disk drive, LFF or SFF
Auxiliary bay fan module
Rear panel area
System fan module
Power supply unit
Controller module
Attachments
Rackmount rail kit
CMA and brackets
64 Chapter 7 In-service field maintenance
Replacement time limit
Eight (8) minutes, including main bay cover replacement
Eight (8) minutes, including main bay cover replacement
Eight (8) minutes, including auxiliary bay cover replacement
Eight (8) minutes, including auxiliary bay cover replacement
Two (2) minutes
Six (6) minutes
Eight (8) minutes
N/A
N/A