topic after redecing mirror disk in Operating System - HP-UX

after redecing mirror disk

???_185 — Mon, 07 Nov 2005 01:30:11 GMT

for patch test, I reduced mirror disk like this.

# vgdisplay –v /dev/vg01 로 확인
# strings /etc/lvmtab
# lvreduce –m /dev/vg01/lvol1 /dev/dsk/c0t6d0
# lvreduce –m /dev/vg01/lvol2 /dev/dsk/c0t6d0
# vgreduce /dev/vg01 /dev/dsk/c0t6d0
# strings /etc/lvmtab으로 확인
# lvdisplay –v /dev/vg01/lvol1로 확인
# lvdisplay –v /dev/vg01/lvol2로 확인

and how should I sync with original disk?

Re: after redecing mirror disk

Luk Vandenbussche — Mon, 07 Nov 2005 02:05:27 GMT

pvcreate -f /dev/rdsk/c0t6d0
vgextend vg01 /dev/dsk/c0t6d0
lvextend -m 1 /dev/vg01/lvol1
lvextend -m 1 /dev/vg01/lvol2

Re: after redecing mirror disk

Adisuria Wangsadinata_1 — Mon, 07 Nov 2005 02:12:43 GMT

Hi,

To sync with original disk, just follow the steps below :

# vgextend /dev/vg01 /dev/dsk/c0t6d0

If the command above not work, you need to create a physical volume first before vgextend :

# pvcreate -f /dev/rdsk/c0t6d0

After that do re-mirror again :

# lvextend -m 1 /dev/vg01/lvol1 /dev/dsk/c0t6d0
# lvextend -m 1 /dev/vg01/lvol2 /dev/dsk/c0t6d0

Check the mirror :

# lvdisplay -v /dev/vg01/lvol1
# lvdisplay -v /dev/vg01/lvol2

For details of the commands, check the man page of the command :

# man pvcreate
# man vgextend
# man lvextend

Hope this information can help you.

Cheers,
AW