User's Manual

NOTE: The Blink and Unblink tasks are only supported for hotswap physical disks (disks that reside

in a carrier). When using an LSI PCI-e U320 controller, the Blink and Unblink tasks apply to physical

disks contained in carriers that can be inserted into a server or an enclosure. If the physical disk is

not contained in a carrier but is instead designed to be connected with a SCSI cable (typically a

ribbon cable), then the

Blink and Unblink tasks are disabled.

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

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 the initial blink pattern has changed into a different 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.

In some cases, a rescan is required for the controller to recognize configuration changes such as the

removal of a disk or device.

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 hotswap physical disks or devices (disks that reside in a carrier.)