How to repair metadata on physical volume online?

Solution Verified - Updated -

Issue

  • Need to repair metadata on physical volume online which is corrupted or zeroed.
  • Unable to recreate a PV label on an exiting device.
# pvcreate --uuid NgIQIH-irp3-ncrC-yNYg-hTsH-LF1c-6iUd7E --restorefile /etc/lvm/backup/testvg /dev/vdb -ff
  WARNING: Couldn't find device with uuid NgIQIH-irp3-ncrC-yNYg-hTsH-LF1c-6iUd7E.
  Can't open /dev/vdb exclusively.  Mounted filesystem?
  Can't open /dev/vdb exclusively.  Mounted filesystem?

Environment

  • Red Hat Enterprise Linux 8.2
    • lvm2-2.03.09-5.el8 or higher.

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