topic Re: LVM Problem in Operating System - HP-UX

LVM Problem

unixguy_1 — Fri, 14 Nov 2008 06:37:47 GMT

hai friends,

iam facing the problems is ,

iam not able to increase the Logical volume,it's showing the error message like "Volume Locked" messags.

Volume group name is Vg00
Logical volume name is lv3

pls any one help to me.

Re: LVM Problem

Ivan Krastev — Fri, 14 Nov 2008 06:46:29 GMT

Hi and welcome to the forums.

Usually lvol3 in the vg00 is the / (root) file system. This can be extended like other volumes. Volume should be continuous.

Please provide more info with you questions (like vgdisplay vg00 in this case).

regards,
ivan

Re: LVM Problem

Ganesan R — Fri, 14 Nov 2008 07:09:45 GMT

Hi,

You will not be able to extend lvol3 (most cases it should be root filesystem) like any other filesystems. Since the PE's should be contigious. There are ways to extend if you have space and additional disks.

But the preferred and recommanded way to extend the root filesystem is taking ignite backup and restore. But again you should have free space on VG00 to achieve.

Re: LVM Problem

Joelmel Roche — Fri, 14 Nov 2008 07:15:37 GMT

you can increase "lvol3" using ignite restoration.

Re: LVM Problem

sreekanthtm — Fri, 14 Nov 2008 07:17:55 GMT

Hi,

Lvol3 in vg00 is root (/), Please provide o/p of # vgdisplay -v vg00. There are ways to extend the root lvol, but none them is a recommended way. Try to free up root file system by deleting/ move unwanted files. If you really want to extend the root volume, please take ignite of your server and then restore the same. While restoring the ignite image you can specify the volume size as you wish.

Rgds
Sreekanth

Re: LVM Problem

Suraj K Sankari — Fri, 14 Nov 2008 07:53:48 GMT

Hi,

Did you check weather cron demon is running or not
ps -aef | grep -i cron
root 2894 1 0 Sep 28 ? 0:02 /usr/sbin/cron

If not then start it

Give full absolute path for each command which is using in crontab file.

Suraj

Re: LVM Problem

Suraj K Sankari — Fri, 14 Nov 2008 07:55:58 GMT

Hi,
Sorry by mistake I have post that :)
Suraj

Re: LVM Problem

sreekanthtm — Fri, 14 Nov 2008 07:57:24 GMT

Hi Suraj,

How cron is related to root (/dev/vg00/lvol3)???!!!

Rgds
Sreekanth

Re: LVM Problem

sreekanthtm — Fri, 14 Nov 2008 07:57:48 GMT

ok....

Re: LVM Problem

Suraj K Sankari — Fri, 14 Nov 2008 08:17:21 GMT

Hi again,

Sorry for my above mistake

Here is the full document with example how to extend the / partition.

http://www.symmetricwebsites.com/articles/HP-UX/hpuxDynamicallyExtendSlashAndOrStand.php#procedure

Suraj

Re: LVM Problem

unixguy_1 — Sat, 15 Nov 2008 01:09:08 GMT

Actaullay the volume group name is Vg02,The Logical volume name is lv31.

i checked that to increase the LV,it's showing that Volume locked.
i thought it's mirredin some other disk.

that's why it's showing that error message.

thanks a lot for giving the support

Re: LVM Problem

Emil Velez — Sat, 15 Nov 2008 02:33:02 GMT

1. Make a ignite backup and regular backup
2. if you have another disk in vg00 you can pvmove lvol4 to another disk

pvmove -n /dev/vg00/lvol4

3. Then you can lvextend lvol3 and there will be contiguous space after it.

If you have vg00 mirrored you will have to do this for the mirror of lvol4 too before doing the lvextend and fsadm

good luck