3 Replies Latest reply on Oct 9, 2019 3:49 PM by Amin Masoudifard

    vCenter position

    Passwd123 Novice

      Hello,

      today we decided to switch to HA, then double servers and vcenter for control.

      I doubt, the vcenter appliance is better to keep it inside a host that will be driven by vcenter itself or is it right to put it out of the HA environment and any cluster?

       

      Cluster1 [host + host] + external vcenter

      or

      Cluster1 [host + host(with vcenter vm)]

       

      Thanks

        • 1. Re: vCenter position
          scott28tt Champion
          Community WarriorsVMware EmployeesUser Moderators

          Moderator note: Moved to the Availability : HA & FT area

          • 2. Re: vCenter position
            Sureshkumar M Expert
            vExpert

            Basically , it can reside on same cluster . HA failover is not dependent on vCenter server. During any HA event , your vCenter server will also be restarted on other host like normal virtual machines. Only for setting up HA on a cluster you need vCenter server, not for failover which will be handled by the hosts in the cluster.

            1 person found this helpful
            • 3. Re: vCenter position
              Amin Masoudifard Hot Shot

              You can run VCSA (Appliance mode) inside the same cluster without any concern, but remember this important point: Although you configure the cluster services like HA & DRS from the vCenter management console, but their operations run by ESXi itself (actually HA agent inside the ESXi). Then if you have a failure about VCSA, it will be restarted in another healthy host and management operations of the vCenter will be continue after a safe restart ...

              However if you provide and dedicate another cluster for the vCenter, there is same availability requirements that you must consider, include load-balancing and failover needs and also a shared storage ... So in the 2nd cluster ( if you have) you will encounter with same physical and virtual disasters. So I think it's not a perfect solution for vCenter availability.

              As the last concept is the vCenter HA feature that is published after release of vSphere 6.5. you must consider VCHA is only available in appliance, however it needs at least to 3-nodes ( 3 hosts) for deploying vCenter Active, Passive and Witness nodes and you need to provide this physical requirement before enabling this availability feature.

              Please mark my comment as the Correct Answer if this solution resolved your problem