Cannot activate a volume group after cluster failover on Red Hat Enterprise Linux 5

Solution Unverified - Updated -

Issue

  • Cluster suddenly goes down.
  • vgdisplay on my cluster nodes reports "Couldn't find device" and the volume group cannot be activated.

Environment

  • Red Hat Enterprise Linux Server 5 (with the High Availability Add on)
  • HA-LVM is used to manage shared storage between nodes
    • A shared volume group has multiple PV's
      • Some of the PV's are visible to one node but not to the other one

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