Avago Technologies 3ware 9650SE-12ML (Channel) - Manual (Page 181)

Background Tasks
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If rebuild scheduling is not enabled on the Scheduling page, the rebuild
process begins almost immediately in the background. If rebuild
scheduling is enabled, the unit will not start actively rebuilding until the
next scheduled time.
Rebuilding Units through 3BM
When a RAID unit becomes degraded, it is marked as such, and the drive(s)
that failed are marked as
Not In Use in the 3BM screens.
Figure 68 shows an example of how a degraded RAID 5 unit appears in 3BM.
Figure 68. Degraded RAID 5 Array to be Rebuilt
You can start the rebuild of a degraded unit manually in 3BM, or you can let
the system boot and allow the rebuild to take place automatically.
The rebuild process will take less time if Rapid RAID Recovery has been
enabled during unit creation. See “Rapid RAID Recovery” on page 126
To start the rebuild of a unit through 3BM
1 Reboot the system and start 3BM.
A red message box informs you that the unit is degraded, and suggests
some possible approaches. Figure 69 shows an example of a degraded-
array message.
Note: If you need to cancel a rebuild, you can do so by using the Remove Drive
link on the Maintenance page to remove the drive from the unit.