[linux-lvm] LV, VG, and PV information not available after vgcfgrestore
Smith, Troy (NIH/NCI) [C]
trsmith at mail.nih.gov
Mon Dec 17 15:42:42 UTC 2007
I recently migrated a logical volume from a failing host to a new host,
and although I am able to mount and access the volume, I cannot view any
of the LV information using lvdisplay, vgdisplay, or pvdisplay.
The physical volume is SAN mounted. The /etc/lvm/backup/file was copied
from the failing host to the new host, and using vgcfgrestore and
vgchange, the LV's are now mounted on the new host and completely
accessible. However, when I run any of the display or scan commands,
information regarding these volumes does not appear. I'm wondering if I
missed a step in recovery. Following are the steps I followed:
-on source host, unmounted the file system using the LV in question
-presented LUN the LV is on to the new host, and discovered
-coped /etc/lvm/backup/file from source to target
-on target host, vgcfgrestore on the copied backup file
-on target host, lvscan. The LV was recognized, but not active.
-vgchange to activate the LV
-another lvscan showed the LV active
-modifed target host:/etc/fstab
-mounted the LV on the target host without issue.
Is there another step or two (or more) that I should have executed prior
to mounting or even recovering the LV?
Any and all assistance is greatly appreciated.
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