User's Manual

Virtual Disks 233
however, cancel the background initialization. When you do so, the controller
restarts the background initialization at a later time. For more information,
see Background Initialization on PERC Controllers.
Use the Cancel Background Initialization task to cancel a background
initialization on a virtual disk.
NOTE: On the PERC 4/SC, 4/DC, 4e/DC, 4/Di, 4e/Si, and 4e/Di controllers, the
controller firmware uses the rebuild rate setting to control the system resource
allocation for the Background Initialization task. For more information, see Set
Rebuild Rate.
Restore Dead Segments
Does my controller support this feature? See Supported Features.
Use the Restore Dead Segments task to recover data from a RAID-5 virtual
disk that has been corrupted. The Restore Dead Segments task attempts to
reconstruct data from a corrupt portion of a physical disk included in a RAID-
5 virtual disk. The Restore Dead Segments task uses the parity or redundant
information to reconstruct the lost data. This task is not always able to
recover lost data.
Delete
Does my controller support this feature? See Supported Features.
Use the Delete task to destroy all data on the virtual disk. For more
information, see Virtual Disk Task: Delete.
Assign and Unassign Dedicated Hot Spare
Does my controller support this feature? See Supported Features.
Use the Assign Dedicated Hot Spare task to assign a disk as a backup for a
single virtual disk. For more information, see Assign and Unassign Dedicated
Hot Spare.