vgactivate

[khilari]

hi guys, i wanted to know that should the volume group be active before i do a vgsync on it, in disk failure scenerios.
thanks

[Torsten.]

You cannot sync an inactive VG.

See also

http://docs.hp.com/en/5991-1236/When_Good_Disks_Go_Bad.pdf

[Aussan]

Hi Khilari
i'm assuming the question is should the vg be active before the vgsync

once you replace the disk and do a vgcfgrestore
you should activate the vg by doing vgchange -a y vg##
if it's a boot disk
then do the mkboot and lvlnboot then vgsync

if not a boot disk, then do the vgsync

hope this helps


regards

Aussan

[Tim Nelson]

My interpritation of the vgchange man page is that activation of an inactive VG automatically kicks off a vgsync. Executing a vgchange on an already active VG does not auto sync.

The -s option disables the auto sync of any mirrored volumes.

If I read this right then your question is a mute point.

[Tim Nelson]

One more place I found some info. man vgsync

third paragraph last sentence.

The synchronization process can be time consuming, depending on the
hardware characteristics and the amount of data. Unless disabled, the
mirrors within a volume group are synchronized automatically when the
volume group is activated by the vgchange -a y command.