User's Manual

Remove Dead Segments
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Does my controller support this feature? See Supported Features.
The Remove Dead Segments task recovers disk space that is currently unusable. A dead or orphaned disk segment refers to an area of a physical disk that is
unusable for any of the following reasons:
l The dead segment is an area of the physical disk that is damaged.
l The dead segment is included in a virtual disk, but the virtual disk is no longer using this area of the physical disk.
l The physical disk contains more than one virtual disk. In this case, disk space that is not included in one of the virtual disks may be unusable.
l The dead segment resides on a physical disk that has been disconnected from and then reconnected to the controller.
Prepare to Remove
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Does my controller support this feature? See Supported Features.
Use the Prepare to Remove task to spin down a physical disk so that it can safely be removed from an enclosure or backplane. It is recommended that you
perform this task before removing a disk to prevent data loss.
This task causes the lights on the disk to blink. You can safely remove the disk under the following conditions:
l Wait for about 30 seconds to allow the disk to spin down.
l Wait until you notice the initial blink pattern has changed into a different pattern or the lights have stopped blinking.
A physical disk is no longer in Ready state after doing a Prepare to Remove. Removing the physical disk from the enclosure or backplane and replacing it
causes the physical disk to spin up and return to Ready state.
In some cases, a rescan is required for the controller to recognize configuration changes such as the removal of a disk. See Rescan to Update Storage
Configuration Changes for more information.
Initialize
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Does my controller support this feature? See Supported Features.
The Initialize task prepares a physical disk for use as a member of a virtual disk.
Physical disks attached to CERC SATA1.5/6ch controllers must be initialized before they can be used. On these controllers, the Initialize task can only be
performed once on a physical disk. In some cases a physical disk that is in an Unknown state can be returned to a usable state by performing the Initialize
task. The Initialize task is not displayed for physical disks that have already been initialized using Storage Management or the BIOS.
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Rebuild
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Does my controller support this feature? See Supported Features.
Use the Rebuild task to reconstruct data when a physical disk in a redundant virtual disk fails. See Replacing a Failed Disk that is Part of a Redundant Virtual
Disk for more information.
Rebuilding a disk may take several hours.
Cancel Rebuild
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NOTE: This procedure is not available for physical disks that have been assigned as a hot spare or physical disks that are part of a virtual disk. In
addition, this procedure is only supported for hotswap physical disks (disks that reside in a carrier).
NOTE: This procedure is not supported on the CERC SATA1.5/6ch, and CERC SATA1.5/2s controllers. For the PERC 4/IM controller, this procedure is only
supportedonaPowerEdge™1855system.
CAUTION: This is a data-destructive task. Any virtual disks residing on this physical disk is removed.