none
Add Hyper-V with existing VMs to new cluster

    Question

  • I have a handful of stand-alone Hyper-V hosts that are all running VMs on local storage.  Will be adding an iSCSI SAN for shared storage and would like to create a cluster for these hosts.  Is it OK to power off VMs that already exist on the host/local storage and add the host to the new cluster, then move the VM files from local to shared storage?  Or would I first need to evacuate all VMs off the host prior to adding it to the cluster?  Running Win 2016 on all servers.

    Thursday, April 6, 2017 12:27 AM

All replies

  • Hi,

    you actually don't need to power off the VMs. Just add your Hyper-V node to Hyper-V cluster, define and configure cluster shared storage (CSV) and than livemigrate VMs to CSV and finally add VMs as new resources to cluster.

    No outage

    Radek

    Thursday, April 6, 2017 6:37 AM
  • Hi Sir,

    In addition , after you added the shared disk to each cluster nodes , you may run cluster validation to check the cluster environment .

    Also , you may keep same switch configuration for each cluster node (include the name ).

    As for iSCSI network , we may configure it as "not allow cluster network commnication" :


    Best Regards,

    Elton


    Please remember to mark the replies as answers if they help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    Friday, April 7, 2017 2:22 AM
    Moderator
  • As already mentioned above there is no need to power off the virtual machines, however, it is possible that cluster validation wizard might disrupt network or disks connectivity.

    Also, this step-by-step guide https://www.starwindsoftware.com/starwind-virtual-san-hyper-converged-2-nodes-scenario-2-nodes-with-hyper-v-cluster describes Microsoft Failover Cluster setup based on iSCSI storage pretty good so might be helpful for you either (just disregard the VSAN part).


    Best regards,

    Taras Shved

    StarWind Software

    Blog:   Twitter:   LinkedIN:  

    Note: Posts are provided “AS IS” without warranty of any kind, either expressed or implied, including but not limited to the implied warranties of merchantability and/or fitness for a particular purpose.

    Friday, April 7, 2017 9:23 AM
  • Hi Sir,

    How are things going ?

    Best Regards,

    Elton


    Please remember to mark the replies as answers if they help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    Sunday, April 23, 2017 8:46 AM
    Moderator