3Ware 9550SXU-12 User Guide - Page 181

Background Tasks 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. 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. 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 degradedarray message. www.3ware.com 169