Why doesn't my volume group activate at boot, but can be activated manually?

Solution Verified - Updated -

Issue

  • Volume Group comprised of multiple PV's attached via multipath from does not activate at boot
    After booting, the volume can be activated with vgchange -ay <VG>

Environment

  • Red Hat Enterprise Linux 5
  • SAN storage with paths aggregated by device-mapper-multipath
  • LVM with Physical Volumes on multiple SAN LUNs

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