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vsphere HA Agent on this host is disabled in vCenter 6.x (Windows)

Posted on 2016-10-06
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Last Modified: 2016-10-12
I had to reinstall vSphere 6 Vcenter for windows today.
Prior to reinstall, I exported the DVswitch settings.

Then removed the previous vcenter

On reinstall, I choose to connect via MSSQL (which was the case before) but it saw there was already data in the database, so I choose to clean the database and proceed with install. No issue
MSSQL uses service account with logon as service -- added to local admin group
Using OBDC connections

Everything good thus far.

I re imported the Dvswitch and it squaked with a few errors.
I readded back host to dvswitch and migrated kernel ports for iSCSI, Heartbeat, and Vmotion back over to appropriate DVSwitch port groups.

Now no mater what I do, re-enabling HA does not work

Verified MGMT gateway / IP. / VLAN
I uncheck HA - then rechecked -- still getting error.
I verified Enable Host Monitoring was selected.
I made sure Scatch and Syslog were pointed to separate Folders on each node.
I disabled HA admission Control
I went into Configuration -- Security profile and saw vSphere HA Agent was stopped on 2.. I select to start and stop with the host and restarted service.  However on 2 other nodes. The vSphere HA Agent is no where to be found....

No mater what I do. Getting vSphere HA agent on this host is disabled. On all the nodes in the cluster under Summary.
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Question by:Indyrb
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by:Andrew Hancock (VMware vExpert / EE MVE)
Andrew Hancock (VMware vExpert / EE MVE) earned 250 total points
ID: 41832690
vCenter Server ONLY configures the FDM (Fault Domain Manager) Agent or what is called the HA Agent on the ESXi host.

When vCenter Server contacts/adds the host for the first time, it pushes out the HA Agent software to the host, installs it and then runs it.....

The answer to your issue lies in the LOGS on the ESXi Host.

Check the HA Logs (FDM logs) on the host, for the issue, it could be ESXi host space ?
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by:gheist
gheist earned 250 total points
ID: 41833737
If you disable admission control it means HA will not function at all. You could remove FDM/HA agent alltogether and stop worrying.
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Indyrb earned 0 total points
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So it appeared the HA agent was in a state of fluax,,, i removed host from maintenance mode -- and disabled HA -- it is now Unconfiguring nodes from HA --- I will go back and re-enable.. but I noticed that there was not a Datastore (master) and all nodes show they were disconnected from elected master... hmmm. wonder how the heck that happeneded. but its at 5% Unconfigutring nodes for HA agent... th
now its configuring ha 52%
ha- that did it
placing back in maintenance mode
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Author Closing Comment

by:Indyrb
ID: 41839786
So it appeared the HA agent was in a state of fluax,,, i removed host from maintenance mode -- and disabled HA -- it is now Unconfiguring nodes from HA --- I will go back and re-enable.. but I noticed that there was not a Datastore (master) and all nodes show they were disconnected from elected master... hmmm. wonder how the hell that happeneded. but its at 5% Unconfigutring nodes for HA agent... th
now its configuring ha 52%
ha- that did it
placing back in maintenance modehttps://www.experts-exchange.com/questions/28974893/vsphere-HA-Agent-on-this-host-is-disabled-in-vCenter-6-x-Windows.html#
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