Solution when disks are about to fail (half life)

Solution when disks are about to fail (half life):
Note:
The storage system determines the health status of disks by detecting internal parameters of disks. If the health status of disks drops to a threshold, an alarm indicating that disks are about to fail is reported, which shows that disks have potential risks. If such an alarm is reported and extra hot spare disks are available in the system, pre-copy is enabled automatically to migrate data on disks that are about to fail to hot spare disks.
Recommended action:
If pre-copy has been enabled, replace disks that are about to fail after pre-copy is completed.

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