Mirror

[Massimo_20]

I have vg00 create to 2 disk in mirror. The disk one is not available. If i want reduce the logical volume the output is "..couldn't query physical..".

Is there a procedure to reduce a mirror copy from a unavailable disk?

Is very critical!!!

Thanks in advanced.

[Steven E. Protter]

Shalom,

vgreduce -f vg00

Then follow the instructions after the command completed.

SEP

[Massimo_20]

The vgreduce not work corretly because the logical volume is mirrored.....

[Torsten.]

Why you want to reduce the mirror?
Run "pvchange -a n " and get the disk replaced.
See also
http://docs.hp.com/en/5991-1236/When_Good_Disks_Go_Bad.pdf

[Todd McDaniel_1]

Massimo,

You may need to run:

mv /etc/lvmtab /tmp/lvmtab
vgscan -a

check the lvmtab and see what disks are in vg00.

If the disk is gone, then you can add it again or replace the disk if you suspect it is faulty.

[Stanimir]

Try first to do:

#lvreduce -m 0 /dev//

in order to remove the mirroring.

Regards,Stan

[skt_skt]

This works for me always in the same scenario; when i have a failed disk..We should have a vgcfg configuration file.

To list and verify the config file

adedd11n:root [/root] vgcfgrestore -n /dev/vg00 -l
Volume Group Configuration information in "/etc/lvmconf/vg00.conf"
VG Name /dev/vg00
---- Physical volumes : 2 ----
/dev/rdsk/c0t0d0 (Bootable)
/dev/rdsk/c3t0d0 (Bootable)

Pvchange -a n /dev/dsk/c0t0d0
Replace the disk
Ioscan -fnH path
Diskinfo /dev/rdsk/c0t0d0

mkboot /dev/rdsk/c0t0d0

mkboot -b /usr/lib/uxbootlf /dev/dsk/c0t0d0

vgcfgrestore -F -n vg00 /dev/rdsk/c0t0d0
Pvchange -a y /dev/dsk/c0t0d0
vgchange -a y vg00
vgsync vg00

lvlnboot -R

for lif_comp in `lifls /dev/dsk/c3t0d0`
do
/usr/bin/lifcp /dev/dsk/c3t0d0:${lif_comp} /dev/dsk/c0t0d0:${lif_comp}