Remove Hyper-V host from Nutanix cluster


Quick guide how to remove Hyper-V host from Nutanix cluster and from Microsoft failover cluster. Order is very important, as Nutanix AOS is very smart and will not let you remove Hyper-V node if it is part of Microsoft failover cluster.


Nutanix Prism error message


Detailed message from Prism

NOTE #1: do not remove more than one Hyper-V host from failover cluster. Removing Hyper-V node from cluster causes server reboot, which means – CVM is restarted as well
NOTE #2:
do not remove more than one host from cluster at same time (again AOS will not let you evict next host if another evict task is in progress)
NOTE #3: there is trick, to speed up node evict process, if you are interested open SR for Nutanix support and folks will help you out.

  1. Drain roles off Hyper-V host
  2. Stop CVM by loggin in over SSH to CVM and run  cvm_reboot_now  -P
  3. Enter Hyper-V host in maintenance mode
  4. Remove Hyper-V node from failover cluster in SCVMM
  5. Wait for Hyper-V host to restart and CVM boot up
  6. run cluster status – make sure all services are running – cluster status  | grep -v UP  – command
    [email protected]:$ cluster status | grep -v UP
    2016-10-04 11:58:36 INFO cluster:2115 Executing action status on SVMs,,
    The state of the cluster: start
    Lockdown mode: Disabled
            CVM: Up
            CVM: Up, ZeusLeader
            CVM: Up
    2016-10-04 11:58:39 INFO cluster:2226 Success!
    [email protected]:$

    if can see Up next to every CVM and no Apps DOWN (like on below example), proceed with next step.

    The state of the cluster: start
    Lockdown mode: Disabled
            CVM: Up
                                    Apps DOWN       []
            CVM: Up, ZeusLeader
                                    Apps DOWN       []
            CVM: Up
  7. Log in to Prism Element –> hardware tab –> table –> mark host –> Remove host

    Remove host from Nutanix cluster

    Remove host from Nutanix cluster

  8. Wait for Acropolis to complete node removal.
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Artur Krzywdzinski

Artur is Consulting Architect at Nutanix. He has been using, designing and deploying VMware based solutions since 2005 and Microsoft since 2012. He specialize in designing and implementing private and hybrid cloud solution based on VMware and Microsoft software stacks, datacenter migrations and transformation, disaster avoidance. Artur holds VMware Certified Design Expert certification (VCDX #077).

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