Replacing A Power Supply Unit - Hitachi 3090 G2 Hardware Reference Manual

5. Run the script /opt/raid-monitor/bin/recover-replaced-drive.sh. This
script partitions the replacement disk appropriately, updates the server's internal
RAID configuration, and initiates rebuilding the replaced disk.
The RAID system rebuilds the disk as a background operation, which takes
approximately 50 minutes to complete. Events are logged as the RAID partitions
rebuild and become fully fault tolerant.
6. Monitor the rebuilding process by running the chassis-drive-status command,
and check the values in the Status column for each device. The values in the Status
column should be:
"Good" for synchronized volumes.
■
"Rebuilding" for the volume currently being synchronized.
■
"Degraded" for any volume(s) that have not yet started the synchronization
■
process.
7. Once the rebuild process has successfully completed, run the trouble chassis-
drive command.
If the command response displays issues, resolve them if possible, or contact
technical support for assistance.
If the command response displays "No faults found," continue the disk replacement
process by replacing the second hard disk.
8. Shut down the server.

Replacing a power supply unit

You can replace a power supply unit (PSU) as a hot-swappable server component. The
server can operate on a single PSU if necessary, making it possible to replace a failed
PSU without shutting down the server. If a PSU fails, it should be replaced as quickly as
possible, because operating on a single PSU means that there is no redundancy in that
area, increasing the risk of an interruption in service to clients.
LED indicators on each PSU indicate the PSU status.
Figure 21 PSU locations on HNAS 3080 and 3090 rear panel
Hitachi NAS Platform 3080 and 3090 G2 Hardware Reference
Chapter 6: Replacing server components
Replacing a power supply unit
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