Cluster "PROTECTED NETWORK" not failover error 1255

Question

During my failover tests, I found difficult problem.

When I create a new HA VM (doesn't matter on which node) and disconnect cables from the node this VM is moved to the second one. Good! :) Normal behavior using "Protected Network". When I restore network connection I can manually move this vm without any problem. The problem starts existing when I unplug cables and wait for failover the same machine next time. I get information: The operation did not complete on resource ... in detail information there is only "Cluster resource 'VM' in clustered role 'VMName' has received a critical state notification (EventID 1255). No auto failover. It still can be moved manually by clicking live migration.

When I delete VM from cluster role and bring as HA it can be failover again but only once.

Any advice ?

Regards

Beaumois

Answer 1

Hello

Thank you for your question and reaching out. I can understand you are having issues related to Failover clustering.

Sometimes, the upper version of BIOS, CPU firmware, different patches or processors of the same model, but at different stepping levels, may cause such issue.

Also , If you have any Firewall or Antivirus try to disable them for temporary

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Answer 2

Hello LimitlessTechnology-2700

Thanks you

It is a new install. Same server model, Bios and driver release.

Firewall is disable on 2 nodes

As it is a new install, antivirus is not installed yet

Cluster is working well : fast and live migrations are OK
Just an issue when production lan cable is disconnected -> live migration works only one time :-)

Regards
Cedric BEAUMOIS