vgcfgbackup error

[Jannik]

The newly allocated mirrors are now being synchronized. This operation will
take some time. Please wait ....
Logical volume "/dev/vg00/lvol1" has been successfully extended.
vgcfgbackup: /etc/lvmtab is out of date with the running kernel:Kernel indicates 3 disks for "/dev/vg00"; /etc/lvmtab has 2 disks.
Cannot proceed with backup.

[Fabio Ettore]

Hi,

usually this error is due to some differenices between /etc/lvmtab and /etc/lvmconf/vgXX.conf (in this instance vg00.conf).
In order to solve this problem

# mv /etc/lvmtab /etc/lvmtab.old
# vgscan -v

and re-try the backup.

I hope this helps you.

Best regards,
Ettore

[Pete Randall]

vgdisplay -v vg00: how many disks does it show?
strings /etc/lvmtab: how many disk does it show for vg00?
mv /etc/lvmtab /etc/lvmtab.old
vgscan -a


Pete

[Jannik]

the kernel is the one having problems:
vgreduce -f /dev/vg00
would that solv the prob?

[Fabio Ettore · Accepted solution]

yes, you can do it too; the following steps should solve your problem:

# vgreduce -f /dev/vg00
# mv /etc/lvmtab /etc/lvmtab.old
# vgscan -v
# vgcfgbackup vg00

Best regards,
Ettore

[Jannik]

root@tm012[/] # vgreduce -f /dev/vg00
PV with key 1 sucessfully deleted from vg /dev/vg00
Repair done, please do the following steps.....:
1. save /etc/lvmtab to another file
2. remove /etc/lvmtab
3. use vgscan(1m) -v to re-create /etc/lvmtab
4. NOW use vgcfgbackup(1m) to save the LVM setup
root@tm012[/] # mv /etc/lvmtab /etc/lvmtab.old
root@tm012[/] # rm /etc/lvmtab
rm: /etc/lvmtab non-existent
root@tm012[/] # vgscan -v
Creating "/etc/lvmtab".
vgscan: Couldn't access the list of physical volumes for volume group "/dev/vg00".
Couldn't stat physical volume "/dev/dsk/c3t2d0":
Invalid argument


/dev/vg00
/dev/dsk/c1t2d0
/dev/dsk/c2t2d0


Scan of Physical Volumes Complete.
root@tm012[/] # vgcfgbackup -u /dev/vg00
vgcfgbackup: Configuration file "/etc/lvmconf/vg00.conf" not found or is corrupted

[Shahul]

Hi,

If your all PVs are connected and online, try

#vgdisplay -v /dev/vg00 verify CUR PVs and ACT PVs. If CUR PV is more than ACT PV, then you can give a try with vgreduce -f /dev/vg00. This will remove any missing PVs.

Keep a copy of /etc/lvmtab before doing all these.

Good luck
Shahul

[Fabio Ettore]

The reason of your problem is about the change of instance numbers for some disks.
To solve this problem try

# insf -e

and then

# vgscan -v

Best regards,
Ettore

[Jannik]

after insf -e and vgscan -v # which worked

root@tm012[/] # vgcfgbackup -u /dev/vg00
vgcfgbackup: Configuration file "/etc/lvmconf/vg00.conf" not found or is corrupted
root@tm012[/] #
root@tm012[/] # ll "/etc/lvmconf/vg00.conf"
/etc/lvmconf/vg00.conf not found

[Pete Randall]

Jannik,

The -u switch says to update the existing file. Try it without the -u.


Pete

[Jannik]

root@tm012[/] # vgcfgbackup /dev/vg00
Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf

TNX All