HP Visualize J5000 hp Visualize J5000, J7000 workstations owner's guide (a4978 - Page 84

Step 2, also as a double check that it is a proper replacement.

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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 84 Chapter 3

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84
Chapter 3
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/c
x
t
x
d
x
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