Re: ESXi and vCenter Server 5 - "DRS cannot find a host to power on or migrate the virtual machine""

Cannoli wrote:

 

I'm getting the error in the title when I try to deploy View linked clone VM's to a newly configured cluster.  Some background (applies to all three servers):

 

* Three ESXi 5 servers, 12 physical cores (24 with HyperThreading) and 72GB RAM each (36 physical cores, 72 logical cores and 216GB RAM for the cluster)

* Each ESXi server has only two physical NIC's - One on vSwitch0 as management and the other in a DV switch, hosting 6 port groups

* The NIC in vSwitch0 is enabled for vMotion and management

* All ESXi hosts are attached to the same 4 NFS datastores

* Disabling DRS allows the linked clone pool to create and deploy VM's without issues

 

Is my DRS or my dvSwitch not configured? The cluster of three ESXi hosts only has 3 VM's at this time in separate VLAN's so I'm assuming my dvSwitch and port groups are working, at least for VM traffic. The VM's are a vCenter Server dedicated to View, View Connection Server and a Linux VM for users with the vCenter server allocated 16GB of RAM if that matters.

 

The VM's being deployed to from the linked clone pool has 2vCPU's and 4GB of RAM

 

Like I said, when I uncheck DSR under the cluster's properties, the VM's deploy fine.

 

One thing to note, the three ESXi servers being used were being managed by a separate vCenter server and part of a separate dvSwitch before migrating to this new configuration.  I didn't reboot the ESXi hosts, just reconfigured them from scratch to work with this new vCenter Server and View connection server.

Hi

please follow below steps

1. In Lab Manager Global Organization, click Resources, then click the Hosts tab.
2. If host spanning is enabled on the host, go to the host properties and disable it.
3. From the Resources/Hosts page, disable the host.
4. Either undeploy all virtual machines on the host or put the host into maintenance mode so that all of the virtual machines vMotion to another host.
5. When all of the virtual machines are off of the host, unprepare the host in Lab Manager.
6. Edit the cluster settings in VMware Infrastructure (VI) Client, and in the VMware DRS change the automation level to Manual.
7. Disconnect the host from the cluster.
8. When the host is disconnected from the cluster, remove the host from the cluster.
9. Re-add the host to the cluster and take it out of maintenance mode.
10. In Lab Manager, prepare the host on the Resources/Hosts page.
11. After completing this process for all ESX hosts in the cluster, set the DRS settings back to automated (if it was previously set to automated).

Yours,

Satya Image may be NSFW.
Clik here to view.