The volume naming convention prefixes logical volume names with
ceph-lv-, ceph-db-, or ceph-wal-. The code that was added recently
to remove orphaned DB and WAL volumes does a string replacement of
"db" or "wal" with "lv" when searching for corresponding data
volumes. This causes DB volumes to get identified incorrectly as
orphans and removed when "db" appears in the PV UUID portion of
the volume name.
Change-Id: I0c9477483b70c9ec844b37a6de10a50c0f2e1df8
b2c0028349