Users Guide

Does my controller support this feature? See "Supported Features."
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On PERC 3/SC, 3/DC, 3/QC, 4/SC, 4/DC, 4e/DC, 4/Di, 4e/Si, and 4e/Di 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.
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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 be allowed to run to completion. You can, however, cancel the background initialization. When you do so, the controller will restart
the background initialization at a later time. See "Background Initialization on PERC 3/SC, 3/DC, 3/QC, 4/SC, 4/DC, 4e/DC, 4/Di, 4e/Si, and 4e/Di Controllers" for
more information.
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Use the Cancel Background Initialization task to cancel a background initialization on a virtual disk.
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Restore Dead Segments
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Does my controller support this feature? See "Supported Features."
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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.
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Delete
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Does my controller support this feature? See "Supported Features."
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Use the Delete task to destroy all data on the virtual disk. See "Virtual Disk Task: Delete" for more information.
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Assign and Unassign Dedicated Hot Spare
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Does my controller support this feature? See "Supported Features."
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Use the Assign Dedicated Hot Spare task to assign a disk as a backup for a single virtual disk. See "Assign and Unassign Dedicated Hot Spare" for more
information.
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Check Consistency
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Does my controller support this feature? See "Supported Features."
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Use the Check Consistency task to verify 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.
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Cancel Check Consistency
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NOTE: On the PERC 3/SC, 3/DC, 3/QC, 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. See "Set Rebuild Rate" for more information.
NOTE: On the PERC 3/SC, 3/DC, 3/QC, 4/SC, 4/DC, 4e/DC, 4/Di, 4e/Si, 4e/Di, and CERC ATA100/4ch controllers, the controller firmware uses the rebuild
rate setting to control the system resource allocation for the Check Consistency task. See "Set Rebuild Rate" for more information.