topic Re: lvm problem in Operating System - HP-UX

lvm problem

JOHN TURNER_2 — Tue, 20 Sep 2005 05:59:34 GMT

We have a problem relating to lvm on a hp 11.00 system, someone has managed to create two logical volumes on the same physical extentents, We have tried to remove one of the logical volumes which has worked but it now won't let us remove the second logical volume that was sharing it's extents.

can anyone advise

john

Re: lvm problem

Muthukumar_5 — Tue, 20 Sep 2005 06:04:51 GMT

umount the file system first.
lvremove -f

what it is saying.

hth.

Re: lvm problem

RAC_1 — Tue, 20 Sep 2005 06:06:30 GMT

What is error message?? How does lvdisplay and vgdisplay look like??

Re: lvm problem

Luk Vandenbussche — Tue, 20 Sep 2005 06:08:44 GMT

If it is the only volume in the volumegroup you can remove it with vgexport

vgchange -a n /dev/vgxx
vgexport /dev/vgxx

Re: lvm problem

JOHN TURNER_2 — Tue, 20 Sep 2005 06:26:05 GMT

the error that i get when i try to remove the logical volume is:

sn9c:/var/tmp# lvremove -f /dev/vg00/servicenode
lvremove: Couldn't delete logical volume "/dev/vg00/servicenode":
The specified logical volume is open, or
a sparing operation is in progress.
Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf

Re: lvm problem

Bharat Katkar — Tue, 20 Sep 2005 06:31:47 GMT

HI John,
Try doing:
# lvchnage -a n /dev/vg00/servicenode
# lvchnage -a y /dev/vg00/servicenode
# lvremove -f ...
See if that works.
Regards,

Re: lvm problem

JOHN TURNER_2 — Tue, 20 Sep 2005 06:40:36 GMT

when i try and lvchange the lvol, i get the following error msg

sn9c:/var/tmp# lvchange -a n /dev/vg00/debuglogs
lvchange: Logical volume "/dev/vg00/debuglogs" could not be changed:
The supplied lv number refers to a non-existent logical volume.

also when i lvdisplay the said volume group i get

LV Name /dev/vg00/debuglogs
LV Status available/syncd
LV Size (Mbytes) 0
Current LE 0
Allocated PE 0
Used PV 0

Re: lvm problem

Muthukumar_5 — Tue, 20 Sep 2005 06:44:39 GMT

For this,

# lvchnage -a y /dev/vg00/debuglogs
# lvremove -f /dev/vg00/debuglogs

hth.

Re: lvm problem

Mahesh Kumar Malik — Wed, 21 Sep 2005 02:08:03 GMT

Hi John

1. lvremove should remove volume.

2. If there is only one volume in VG then vgexoprt can also be used

Regards
Mahesh

Re: lvm problem

VIKAS AGRAWAL — Wed, 21 Sep 2005 02:35:00 GMT

hi John ,

if you don't mind please send us the full output of the following commands , attach in a file

1. vgdisplay -v /dev/vg00
2. lvdisplay -v /dev/vg00/debuglogs
3. cd /dev/vg00 , ls -il

vikas

Re: lvm problem

Devender Khatana — Wed, 21 Sep 2005 04:05:15 GMT

Hi John,

As of now your LV exists with Zero PE's. Only problem what you are having is that you are not able to remove the LV. It should be fine by creating another LV with some different name.

But apparently it apears as if your system is not patched properly. Are latest LVM patches applied ?

HTH,
Devender