Node using iSCSI LUNs has reservation conflicts during VMware virtual machine snapshot

Solution Unverified - Updated -

Issue

  • Nodes fence each other repeatedly after snapshot backups start.
  • GFS2 withdrawals during snapshots
  • Cluster node has SCSI reservation conflicts during VMware virtual machine snapshot.
  • Virtual guest with iSCSI initiator hangs during snapshot.

Environment

  • Red Hat Enterprise Linux Server 7 (with the High Availability Add-on)
  • Red Hat Enterprise Linux Server 8 (with the High Availability Add-on)

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