KVM live migration fails out with error: Unsafe migration

Solution Verified - Updated -

Issue

Trying to live migrate a guest causes the following error:

# virsh migrate  --live guest01 qemu+ssh://host02/system
error: Unsafe migration: Migration may lead to data corruption if disks use cache != none

Using the '--unsafe' option for virsh works well for manual migration but 'clusvcadm -M' keeps failing.

Environment

  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 6
  • KVM

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