topic Re: vgcfgrestore in Operating System - HP-UX

vgcfgrestore

kunjuttan — Mon, 21 Dec 2009 07:25:21 GMT

Can anybody please give me some details of vgcfgbackup and vgcfgrestore command?

Re: vgcfgrestore

SoorajCleris — Mon, 21 Dec 2009 07:46:54 GMT

Hi,

$man vgcfgrestore
$man vgcfgbackup

How ever ,

1. vgcfgbackup take the configuration from the lvm header of the disk and save to a file default location /etc/lvmconf/vgxx.conf. This command runs automatically ( if you are not desabling it by option) when ever there is a vg config change.

using vgcfgrestore you can restore the same to disks in case of header corruption/ disk replacement .

Regards,
Sooraj

Re: vgcfgrestore

Michal Kapalka (mikap) — Mon, 21 Dec 2009 07:53:24 GMT

hi,

if you make some LVM/VG changes it will be writen to the /etc/lvmconf/*, on this location you will find the backup of the vg's, for this backup will be vgcfgbackup used, and vgcfgrestore read if from this location.

man vgcfg[backup/restore]

mikap

Re: vgcfgrestore

Jeeshan — Mon, 21 Dec 2009 08:13:30 GMT

vgcfgbackup command saves LVM configuration for volume groups in a default or alternate backup.

vgcfgrestore command display or restore LVM VG configuration from backup file.

The first one is generally used when any changes or maintenance occurred in LVM.

The second one is used when any thing wrong happened while doing any changes in LVM.

Re: vgcfgrestore

Johnson Punniyalingam — Mon, 21 Dec 2009 08:24:20 GMT

The vgcfgrestore command restores the LVM configuration data

Restore the LVM configuration information for the physical volume
/dev/rdsk/c0t7d0 that was saved in the default file /etc/lvmconf/vxx.conf

vgcfgrestore -n /dev/vg00 /dev/rdsk/c0t7d0

vgcfgbackup - create or update LVM volume group configuration backup file
By default, vgcfgbackup runs automatically each time an LVM command changes the LVM configuration.

Re: vgcfgrestore

Sp4admin — Mon, 21 Dec 2009 16:46:53 GMT

Looks like the question has been answered. vgcfgbackup write to the /etc/lvmconf file. All the configuration created from LVM commands write to this location.

sp,

Re: vgcfgrestore

Viktor Balogh — Tue, 22 Dec 2009 13:14:46 GMT

Usually vgcfgrestore is used to restore the LVM data onto a disk, eg. when a failed disk was replaced the LVM header must be restored to the plain disk in order to get it recognized by the LVM subsystem.

on p.57 you can see how it is used for replacing a failed disk:

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

Re: vgcfgrestore

kunjuttan — Wed, 06 Jan 2010 06:05:37 GMT

Thanks.
To whcih location it is backing up?
Is it backup the data also?

Re: vgcfgrestore

Torsten. — Wed, 06 Jan 2010 06:10:24 GMT

The answer is already above ...

It's a configuration backup only!

Re: vgcfgrestore

kunjuttan — Wed, 06 Jan 2010 06:12:16 GMT

Thanks.
To whcih location it is backing up?
Is it a automatic one or we have to do manually?

Re: vgcfgrestore

Torsten. — Wed, 06 Jan 2010 06:15:26 GMT

Read the post of Johnson Punniyalingam - it is all there.

Also do

man vgcfgbackup

Re: vgcfgrestore

Vishu — Wed, 06 Jan 2010 06:16:29 GMT

Hi,

it does not take data backup..only the LVM configuration. and

Yes, it is automatic. But you can take it manually also by

# vgcfgbackup

The locaiton is already answered as

vgcfgbackup take the configuration from the lvm header of the disk and save to a file default location /etc/lvmconf/vgxx.conf.

Re: vgcfgrestore

kunjuttan — Wed, 06 Jan 2010 06:33:06 GMT

Thanx buddies...