How long will a Copy Back operation take when a hot spare is invoked?
Pro-Active hot spare does not use a Copy Back operation
Copy Back time depends on the RAID type
Copy Back time depends on the disk capacity
Copy Back time depends on the disk type
Note: Starting with Release 24, you can now use a proactive hot spare for proactive disk replacement. Before
Release 24 you had to remove the physical disk to replace in order to force a rebuild. During the rebuild phase,
the RAID group was “degraded” and at risk.
Three main benefits of using a proactive hot spare:
Avoiding “uncorrectable errors” due to media problems during the rebuild process.
Greatly reduce the risk of having a degraded RAID group, and the risk of having a double-faulted RAID
Performance – a copy to hot spare is faster than a normal rebuild.