topic Re: Regarding VG Error in Operating System - HP-UX

Regarding VG Error

Kavita Poonia — Wed, 01 Jul 2009 16:50:41 GMT

Hello Techies,

I am getting below mentioned error on one of my HP-UX server. The VG /dev/vg12 is not existing now on this server but its group file is still there. Please let me know how to resolve this error.

vgdisplay: Volume group "/dev/vg12" does not exist in the "/etc/lvmtab" file.
vgdisplay: Cannot display volume group "vg12".
expr: Syntax error

/usr/local/bin/Disk-stat.sh.ctms[254]: ( ( 0 * 1000 ) / 0 + 5 ) / 10 : Cannot divide by zero.

Thanks & regards,
Kavita

Re: Regarding VG Error

Pete Randall — Wed, 01 Jul 2009 16:54:18 GMT

Try vgexport.

Pete

Re: Regarding VG Error

Michal Kapalka (mikap) — Wed, 01 Jul 2009 16:55:33 GMT

hi,

use a advice from Pete,

vgexport.

mikap

Re: Regarding VG Error

Steven E. Protter — Wed, 01 Jul 2009 17:06:50 GMT

Shalom,

strings /etc/lvmtab

ioscan -fnC disk

Look for any matches.

I think you will have to vgexport and recreate the volume group, but it would be nice to know what the system expects.

SEP

Re: Regarding VG Error

James R. Ferguson — Wed, 01 Jul 2009 17:13:25 GMT

Hi Kavita:

So what are you trying to do? Do you _want_ to regain vg12? Did you want to remove vg12?

If you want'ed only to rid yourself of vg12 at this point you can simply 'rm' the '/dev/vg12/group' file and '/dev/vg12' directory.

Regards!

...JRF...

Re: Regarding VG Error

Sharma Sanjeev — Wed, 01 Jul 2009 18:13:34 GMT

Hi kavita

You can remove group file for vg12 /dev/vg12/group or use vgexport

Regards
Sanjeev

Re: Regarding VG Error

Vishu — Wed, 01 Jul 2009 18:17:23 GMT

Hi Kavita,

what you trying to do from here now. Like, if you have that VG and it is not listed in lvmtab, then do

# vgscan -av

if you want to get rid of that VG, you can simply remove the group file and its directory.

if you want to regain that VG and having its map file, you can do vgimport then

# vgimport -m /dev/vg12

Re: Regarding VG Error

Sharma Sanjeev — Wed, 01 Jul 2009 19:06:36 GMT

Vishu,

I would never suggest vgscan, if there are hundreds of disks and if any one faulty than .......

Regards
Sanjeev

Re: Regarding VG Error

Kavita Poonia — Thu, 02 Jul 2009 15:08:15 GMT

Hello All,

We have removed that VG sometime back but now we are getting this error. So, I think to remove this error, I need to remove the group file and directory existing for this VG, right?

Thanks & regards,
Kavita

Re: Regarding VG Error

Torsten. — Thu, 02 Jul 2009 15:16:05 GMT

Yes, remove the group file.

I'm sure you did the VG removal wrong, not by vgremove but by a "rm" only. This is always a reason for trouble.

Re: Regarding VG Error

Sharma Sanjeev — Thu, 02 Jul 2009 15:40:24 GMT

Hi Kavita,

Remove the Directory for vg12 & it will remove group file itself :-)

Regards
Sanjeev

Re: Regarding VG Error

Kavita Poonia — Thu, 02 Jul 2009 20:19:10 GMT

Oh ya Sanjeev.....thanks :)

Thanks Torsten and all. Its always a good experience interacting with you all here.

Regards,
Kavita