HA leverages vCenter to retrieve information about the status of VMs and vCenter is also used to display the protection status of VMs.
If vCenter becomes unavailable it will not be possible to make changes to the configuration of the cluster, but HA will still responds to failures without vCenter.
Hi Naveen,
Yes HA works if vCenter down? Only thing is that you cannot make new changes to cluster/HA settings.
In a HA cluster, Master host will be monitoring the power state of all protected VMs, slave hosts contribute the virtual machines information to master, so in case of failures it is the duty of master host to identify the VMs to be restarted and orchestrate its placement using a local placement engine..
You can browse to any of the Datastores part of HA cluster and find a folder called .vSphere-HA. You know where all the FDM information along with the host and hb state, VM powered on or protected state information to act during the failure.
Regards,
Thanks
Thanks