Users Guide

Removing Dead Segments
Does my controller support this feature? See Supported Features.
The Remove Dead Segments task recovers disk space that is unusable. A dead or orphaned disk segment refers to an area of a physical
disk or physical device that is unusable for any of the following reasons:
• The dead segment is an area of the physical disk or physical device that is damaged.
• The dead segment is included in a virtual disk, but the virtual disk is no longer using this area of the physical disk or physical device.
• The physical disk or physical device contains more than one virtual disk. In this case, disk space that is not included in one of the virtual
disks may be unusable.
• The dead segment resides on a physical disk or physical device that has been disconnected and then reconnected to the controller.
Preparing To Remove
NOTE: Cryptographic Erase is not supported for NVMe devices connected to PERC S140 controller.
Does my controller support this feature? See Supported Features.
Use the Prepare to Remove task to spin down a physical disk or physical device so that it can be safely removed from an enclosure or
backplane. It is recommended that you perform this task before removing a disk or device to prevent data loss.
This task causes the LED on the disk to blink. You can safely remove the disk or device by following the conditions listed below:
• Wait for about 30 seconds to allow the disk to spin down.
• Wait until you notice that the initial blink pattern has changed into a dierent pattern or the lights have stopped blinking.
A physical disk or physical device is no longer in ready state performing. Removing the physical disk or device from the enclosure or
backplane and replacing it causes the physical disk or device to spin up and return to Ready state.
NOTE
: This procedure is not available for physical disks or devices that have been assigned as a hot spare or physical disk or
devices that are part of a virtual disk. In addition, this procedure is only supported for hot swap physical disks or devices (disks
that reside in a carrier.)
Rebuilding Data
Does my controller support this feature? See Supported Features.
Select the Rebuild task to reconstruct data when a physical disk in a redundant virtual disk fails.
NOTE
: Rebuilding a disk may take several hours.
Canceling A Rebuild
Does my controller support this feature? See Supported Features.
Select the Cancel Rebuild task to cancel a rebuild that is in progress. If you cancel a rebuild, the virtual disk remains in a Degraded state.
The failure of an additional physical disk can cause the virtual disk to fail and may result in data loss. It is recommended that you rebuild the
failed physical disk as soon as possible.
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Physical Disks Or Physical Devices