system backup vgcfgbackup

[Bachelier]

On HP 9000 10.20 A problem occurs when executing system backup error message:
vgfgbackup: unable to read the phisical volume: no such device or address.
vgfgbackup: invalid LVMREC on physical volume /dev/rdsk/c6t12d0.
Thank you for your help.

[Andy Monks]

looks like this disc doesn't have a valid lvm header. Is the disc being used?

What does pvdisplay show (if anything).

[R.Suresh · Accepted solution]

Hi,

DO

# strings /etc/lvmtab

Is this shows that disk,
If not,You are not using the disk in LVM

Cross check by
# pvdisplay /dev/dsk/cxtxdx

If it doesn't show any LVM Information,
use pvcreate to create the LVM header &
add this to an volume, then do
vgcfgbackup.

Thanks
R.Suresh.

[Cheryl Griffin]

Determine which volume group the disk belongs to:
# strings /etc/lvmtab

Is this disk supposed to be there?

Various things can cause this error message, such as removing a disk without first using vgchange to deactive the volume group.
# vgchange -a n /dev/vgXX

Look in /var/adm/syslog/syslog.log to see if there are any SCSI or disk type messages that might indicate a bad disk.

[Rick Garland]

Trying to backup a disk (VG) that is not present on the system. The system still thinks it has that VG present in its LVM structure. The disk may have gone bad or did someone remove the disk without vgreducing it out?