RHV: Guest LV suddenly went missing

Solution In Progress - Updated -

Issue

  • After rebooting guests, it would fail to mount a LV from the fstab.
  • A VG is missing within the Guest
  • After migrating the Virtual Disk from one Storage Domain to another Guest LVM went missing.
  • After performing LVM changes within the Guest, LV/VG went missing.

Environment

  • Red Hat Virtualization 3.x
  • Red Hat Enterprise Linux 6 Hosts
  • Red Hat Virtualization 6 Hypervisors
  • Preallocated/RAW Disks with Guest PVs using the whole disks (not on partitions)

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