Chapter 8. Maintaining Units
156 3ware SATA+SAS RAID Controller Card Software User Guide, Version 10.2
5 If the degraded unit has more than one failed drive (for example, a RAID
10 where both mirrored pairs each have a failed drive), repeat step 3 and
step 4 to select another drive.
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 75 shows an example of how a degraded RAID 5 unit appears in 3BM.
Figure 75. 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 113
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 76 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.
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