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05-10-2012 01:53 AM
05-10-2012 01:53 AM
We update a number of systems Vpars and single Blade HP-UX systems .
From patch kit sept 2009 to sept 2011.
It seems in the past in 2009 upgraded a lot of volume groups from Version 1.0 to 2.1 (dynamic extend of a lun possible with this newer Version).
This seems to works fine for the past 2 ½ Year. periodical a vgcfgbackup was made of all Volume groups .
But now during Installing the patch bundle (sept 2011)after first reboot we encountered this problem ..for some volumegroups which were updated in the past , not all Volume-groups ..
vgchange -a y vg05PS1d1
vgchange: Couldn't activate volume group "vg05PS1d1":
On disk LVM metadata structures are corrupted.
I found in the Release Guide ,
After the migration of a volume group from version 1.0 to 2.x using vgversion, the volume
group activation fails with the following error message:
$vgchange –a y vgname
Coundn't activate volume group vgname
On disk, LVM metadata structure are corrupt.
Resolution notes: vgversion has been enhanced so that volume groups migrated using the
March 2012 version of vgversion will successfully activate. Volume groups migrated using
older unfixed versions of vgversion may continue to face this problem. See notes against
QXCR1001182973 under “Known issues” (page 6) for more details.
Defect ID: QXCR1001182973
2.x VG fails to activate with “On disk LVM metatdata structures are corrupted” error message
Problem: Volume groups that were migrated from 1.0 to 2.X using a version
of vgversion prior to the August 2011 web release or using the
September 2011 release may fail to activate, resulting with the error
message: “On disk LVM metadata structures are
corrupted”.
Corrective Action: To fix this problem, restore the volume group back to its 1.0 version
configuration using the vgcfgrestore command, and then migrate
to 2.x using the new enhanced vgversion command, first made
available in the August 2011 web release (after September 2011
release) and also provided in the March 2012 release.
This could be the issue .
the odd thing in this is that we do have this on only a few volume groups ( from resent about 10 systems updates , with each about 10 or more volume groups only had 3 Volume groups with this problem ).
while on regular base a vgcfgbackup is made , we do not have a config for these volume groups while they were V1.0 anymore , overwritten by vfgcfgbackup.
Our question / request : is there a way we can easily Check ( before we start the update ) which volume group could have this issue ?
Solved! Go to Solution.
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05-10-2012 03:17 AM
05-10-2012 03:17 AM
Re: after installing Patches 1109: On disk LVM metadata structures are corrupted.
Hi There
Don't know how you can check for this issue before convertion.
BUT, do you have directories named vgversion_* in /etc/lvmconf ?
These should contain conf files and restore script to go back to v 1
Just a thought,
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05-10-2012 06:10 AM
05-10-2012 06:10 AM
Solution
@Per Christensen_1 wrote:Hi There
Don't know how you can check for this issue before convertion.
BUT, do you have directories named vgversion_* in /etc/lvmconf ?
These should contain conf files and restore script to go back to v 1
Just a thought,
Thanks .
yes I know , but the update V1.0 to V2.1 is done on most Volumegroups in 2009 and 2010 , since then a lot of Volumegroups are extended , so the /etc/lvmconf/vgversion_vg132appl/vg132appl_1.0.conf will probably not valid to use anymore ....
any other idea's except terrabytes of recovery on dozens of systems :=( ..
kind regards Wim .