Users Guide

The Cancel Background Initialization task enables you to cancel a background initialization on a virtual disk.
On PERC controllers, background initialization of redundant virtual disks begins automatically after the virtual disk is created. Because the
initialization is run in the background, other processes can continue while the initialization completes.
The background initialization of a redundant virtual disk prepares the virtual disk for parity information and improves write performance. It
is important that the background initialization is allowed to run to completion. You can, however, cancel the background initialization.
When you do so, the controller restarts the background initialization later.
Related concepts
Background Initialization On PERC Controllers
Restoring Dead Segments
Does my controller support this feature? See Supported Features.
The Restore Dead Segments task recovers data from a RAID-5 virtual disk that has been corrupted. The Restore Dead Segments
task attempts to reconstruct data from the 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.
Deleting Data On the Virtual Disk
Does my controller support this feature? See Supported Features.
The Delete task destroys all data on the virtual disk.
Related tasks
Deleting A Virtual Disk
Performing A Check Consistency
Does my controller support this feature? See Supported Features.
The Check Consistency task verifies the accuracy of the redundant (parity) information. This task only applies to redundant virtual disks.
When necessary, the Check Consistency task rebuilds the redundant data. If the virtual disk is in a Failed Redundancy state, running a
check consistency may be able to return the virtual disk to a Ready state.
Related concepts
Setting The Check Consistency Rate
Canceling A Check Consistency
Does my controller support this feature? See Supported Features.
The Cancel Check Consistency task stops a check consistency operation while it is in progress.
Pausing A Check Consistency
Does my controller support this feature? See Supported Features.
The Pause Check Consistency task pauses a check consistency while it is in progress.
NOTE:
The Pause Check Consistency task updates the virtual disk State property to Resynching Paused immediately.
The Progress property may continue to increment for up to three seconds. This time delay occurs because the polling
task may take up to three seconds to query the task information and update the display.
Resuming A Check Consistency
Does my controller support this feature? See Supported Features.
Virtual Disks
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