Issues ater vsphere HA cluster configuration

I have 2 identical dell server hosts running esxi 6.5.  I have Vcenter installed on one of the windows server 2016 VMs running on host A.  I have the Vsphere essentials PLUS kit.  I have added my datacenter and my cluster. I turned on HA on the cluster and i can see that it is monitoring the master host and will change over to another host if I pull  the network cables from the master.  But my VMs appear not to be migrating to the other host.  I am running an iscsi NAS  for shared storage and added that as a new datastore to the cluster.  on the NAS i do see some small files created to show powered on host status.

where can i start to troubleshoot why the VMs are not available to the other host?
TechGuy_007Asked:
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
so the VM files actually have to be stored on the shared storage device?  

Yes.

not on the local datastores on the servers? correct?  i did get a sucessful failover but only after i moved the VM to the shared storage

That's correct - shared storage
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Okay, a quick test to check if HA is working, is remove power from the Host A when you have a test VM on it, if HA is working, after a few miniutes 1-2, it should restart on available hosts.

If VMware HA is enabled.

Hosts do NOT Migrate, they are restarted!
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TechGuy_007Author Commented:
so the VM files actually have to be stored on the shared storage device?  not on the local datastores on the servers? correct?  i did get a sucessful failover but only after i moved the VM to the shared storage
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TechGuy_007Author Commented:
i successfully got HA to failover and restart the VMs

thanks for the help
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