HP Visualize J5000 Owner's Manual page 82

Hot-Pluggable Hard Disk Drives
The Hot-Plug Process
Step 2
• Reduce any logical volumes that have mirror copies on the faulty disk
so that they no longer mirror onto that disk (note the -A n option):
lvreduce -m 0 -A n LV name /dev/dsk/cXtXdX
(for 1-way mirroring)
or
lvreduce -m 1 -A n LV name /dev/dsk/cXtXdX
(for 2 way mirroring)
For our example:
lvreduce -m 0 -A n /dev/vg00/lvol4 /dev/dsk/c2t4d0
lvreduce -m 0 -A n /dev/vg00/lvol5 /dev/dsk/c2t4d0
Step 3
• Replace the faulty disk. Refer to the instructions earlier in this
chapter for details on how to replace the disk.
• Do an ioscan on the replaced disk to insure that it is accessible and
also as a double check that it is a proper replacement.
For our example:
ioscan /dev/dsk/c2t4d
Step 4
• Restore the LVM configuration/headers onto the replaced disk from
your backup of the LVM configuration:
vgcfgrestore -n volume group name /dev/rdsk/cxtxdx
where x is the logical unit number of the disk that has been replaced.
For our example:
vgcfgrestore -n /dev/vg00 /dev/rdsk/c2t4d0
Step 5
• Attach the new disk to the active volume group with the vgchange
command.
vgchange -a y volume_group_name
For our example:
vgchange -a y /dev/vg00
82 Chapter 3