VMWARE ESXi 5 error: unable to apply DRS resource settings on host not allowed in current state. DRS is not licensed and disabled

Hello All,

We have a problem with one of the hosts in the cluster showing a DRS error. The customer is not licensed for DRS and the feature is disabled anyway, I am not sure why all of the sudden it started showing DRS related errors?
I have included some screenshots, if any knows how to resolve this please let me know.
Nolan GustavoAsked:
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
I think the first thing we would do is the following:-

1. Restart Network Management Agents on this host that has issues.

2. Restart vCenter Server service ?
Hi Nolan Gustavo,

I would suggest the following:

1. Migrate all VMs from this host
2. Remove host from the VCenter
3. Gain console access to host
4. Reboot host - it will remove all memory resident configs - (vpxa)
5. Add host back to vcentre
6. Check to see if vcenter tries to configure HA.


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Nolan GustavoAuthor Commented:
I have already restarted the management agents however this did not make any difference. I will try restarting the vCenter service first, if service restart doesn't resolve this I will follow the rest of the suggestions. Will let you know how I get on shortly.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Do you have a Cluster ?
Nolan GustavoAuthor Commented:
Yes ESXi 5.0 3 host cluster
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Okay, DRS is not been configured by accident, it only takes a tick in the box ?
The setting in the picture supplied is for vCenter, not the host.

As far as I can see, the host is the actual problem. Let me know when you have tried my recommendations.
Nolan GustavoAuthor Commented:
Ok guys looks like POOLS.XML file was corrupt, I called VMWARE support in the end as this was production environment and they recreated the config file to resolve the issue.
Jo_Wickerman your solution is correct if I followed your steps by removing the host from vCenter rebooting and then re-adding back would have recreated this file anyway which would have resolved the problem.
VMware managed to recreate the file without having to reboot the server which helped.

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