07-05-2012
hmm, the VGDA (volume group descriptor area) is also part of the aforementioned information on the disk, which is copied to and maintained in the ODM. Something seems to have gone wrong. Without exactly knowing the details it is hard to advise specifically, though. The following is as generic as possible.
First, make sure you get your ODM clean: disconnect the disk, run cfgmgr and (out of pure paranoia) a synclvodm. You can also reboot the system instead, if this is possible.
Reconnect the disk, run cfgmgr again and then try a recreatevg. If this doesn't work probably some accounting information on the disk is damaged. To rebuild a a damaged VGDA is possible in principle (there are two copies of it on every PV in the VG, so the chance of finding one working copy and distributing this is intact), but is not an easy task. There are several how-tos about this circulating in the net. It is probably easier to restore the data in question from some backup, though.
I hope this helps.
bakunin
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LEARN ABOUT REDHAT
vgdisplay
VGDISPLAY(8) System Manager's Manual VGDISPLAY(8)
NAME
vgdisplay - display attributes of volume groups
SYNOPSIS
vgdisplay [-A|--activevolumegroups] [-c|--colon] [-d|--debug] [-D|--disk] [-h|--help] [-s|--short] [-v[v]|--verbose [--verbose]] [--ver-
sion] [VolumeGroupName...]
DESCRIPTION
vgdisplay allows you to see the attributes of VolumeGroupName (or all volume groups if none is given) with it's physical and logical vol-
umes and their sizes etc.
OPTIONS
-A, --activevolumegroups
Only select the active volume groups.
-c, --colon
Generate colon seperated output for easier parsing in scripts or programs.
The values are:
1 volume group name
2 volume group access
3 volume group status
4 internal volume group number
5 maximum number of logical volumes
6 current number of logical volumes
7 open count of all logical volumes in this volume group
8 maximum logical volume size
9 maximum number of physical volumes
10 current number of physical volumes
11 actual number of physical volumes
12 size of volume group in kilobytes
13 physical extent size
14 total number of physical extents for this volume group
15 allocated number of physical extents for this volume group
16 free number of physical extents for this volume group
17 uuid of volume group
-d, --debug
Enables additional debugging output (if compiled with DEBUG).
-D, --disk
Show attributes from the volume group descriptor area on disk(s). Without this switch they are shown from the kernel. Useful if
the volume group isn't activated.
-h, --help
Print a usage message on standard output and exit successfully.
-s, --short
Give a short listing showing the existence of volume groups.
-v, --verbose
Display verbose information containing long listings of physical and logical volumes. If given twice, also display verbose runtime
information of vgdisplay's activities.
--version
Display version and exit successfully.
DIAGNOSTICS
vgdisplay returns an exit code of 0 for success and > 0 for error:
1 error reading VGDA
2 volume group doesn't exist
3 not all physical volumes of volume group online
4 volume group not found
5 no volume groups found at all
6 error reading VGDA from lvmtab
95 driver/module not in kernel
96 invalid I/O protocol version
97 error locking logical volume manager
98 invalid lvmtab (run vgscan(8))
99 invalid command line
SEE ALSO
lvm(8), pvcreate(8), vgcreate(8), lvcreate(8)
AUTHOR
Heinz Mauelshagen <Linux-LVM@Sistina.com>
Heinz Mauelshagen LVM TOOLS VGDISPLAY(8)