'Unknown response (63)' when listing fence devices via serial channel within virtual interface (fence_virt)

Solution Unverified - Updated -

Issue

Unknown response (63) when listing fence devices via serical channel within virtual interface. No fence device listing is provided as long as the virtual machine is started after fence_virt start. Instead, the following error occurs:

[root@vm1 ~]# fence_virt -D /dev/ttyS1 -o list;
Unknown response (63)

Environment

  • RHEL 6.3 High Availability
  • RHEL 6.3 KVM

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