New Vcenter server and host add

Hello, we are planning to create a new server Vcenter.  Had a bunch of weird issues with Vcenter.  Vcenter 5.1 on Windows running.  have not decided if we will use the VCenter, or create a new virtual machine from Windows to Vcenter again but I don't think that will count for my question.

My plan is to turn off HA and DRS on the old server Vcenter, then remove a host from the old server Vcenter, and then add this host on the new Vcenter server.  Then just repeat the process for each host.

My question is, should I turn off any virtual machine running on the hosts before removing the old server vcenter?

If I remember correctly you have not, the virtual machine must remain in place and running, no connectivity should be lost and users should not not the difference.  We plan to do this off-peak hours, but there are always a couple of vm that are used 24/7.  It would be therefore rather not have to stop first.

Thank you

Hi defrogger

Yes, it's the right way to migrate a new vCenter ESX Server.

Disable HA/DRS and then disconnect the ESXi, vCenter server and plug them into the new vCenter.

By disabling the DRS, you will lose the Resource Pools. So its maybe you assign only manual DRS.

Another thing that many people forget are the options of the virtual machine on the cluster options. they have been set up again on the new cluster.

BTW. There is a guide of vmware:

VMware KB: Move a managed ESX ESXi host to a vCenter Server to a different Server vCenter

Tags: VMware

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