Manual

64 SPARC Enterprise T5140 and T5240 Servers Administration Guide • February 2008

▼ To Perform a Mirrored Disk Hot-Plug Operation

1. Verify which hard drive corresponds with which logical device name and

physical device name.

See “Disk Slot Numbers, Logical Device Names, and Physical Device Names” on

page 53.

2. To confirm a failed disk, type the following command:

If the Disk Status is FAILED, then the drive can be removed and a new drive

inserted. Upon insertion, the new disk should be OK and the volume should be

RESYNCING.

For example:

This example indicates that the disk mirror has degraded due to a failure in disk

c0t2d0.

Note – The logical device names might appear differently on your system,

depending on the number and type of add-on disk controllers installed.

3. Remove the hard drive, as described in your server’s service manual.

There is no need to issue a software command to bring the drive offline when the

drive has failed.

4. Install a new hard drive, as described in your server’s service manual.

The RAID utility automatically restores the data to the disk.

# raidctl

RAID Volume RAID RAID Disk

Volume Type Status Disk Status

--------------------------------------------------------

c0t1d0 IM DEGRADED c0t1d0 OK

c0t2d0 FAILED