Using mirrored Clustered LVM, LVM metadata randomely get overwritten - Red Hat Customer Portal

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Issue

An environment using mirroring in Clustered LVM, LVM metadata randomely gets overwritten and causes LVM to throw Incorrect metadata area header checksum, unknown device or missing PVs errors, which results in LVM to be inaccessible to Physical Volumes / Logical Volumes.

  # lvs
   Incorrect metadata area header checksum

   # vgdisplay | egrep "missing|unknown"
    There are 1 physical volumes missing.
       PV Name               unknown device

Environment

Red Hat Enterprise Linux 5
Red Hat Cluster Suite
CLVMD and Mirrored Logical Volumes
Over 255 device-mapper devices (LVM, multipath, etc.)
cmirror version < cmirror-1.1.39-8.el5_5.1

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