Boot from SAN system has missing non-boot LVM volumes

Solution Verified - Updated -

Issue

  • We have an issue with a production system which has appeared to have lost several LVM file systems. From a SAN-to-Server perspective, multipath looks correct - mpath devices and their underlying partitions exist.

Environment

  • Red Hat Enterprise Linux 5.8
  • Boot from SAN
  • Additional SAN volumes used for data, managed by LVM

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