After vSphere vSphere Distributed Switch has been created and connected with all hosts, enable vSphere HA on the cluster. 

Procedure

  1. Log in to the Management vCenter Server by using the vSphere Web Client.
    1. Open a Web browser and go to https://mgmt01vc01.sfo01.rainpole.local/vsphere-client.
    2. Log in using the following credentials.

      Setting

      Value

      User name

      administrator@vsphere.local

      Password

      vsphere_admin_password

  2. In the Navigator, click Host and Clusters.
    1. Expand the mgmt01vc01.sfo01.rainpole.local inventory.
    2. Select the SFO01-Mgmt01 cluster.
  3. Click the Configure tab and click vSphere Availability.
  4. Click Edit.
  5. In the Edit Cluster Settings dialog box, select the Turn on vSphere HA check box.
  6. Under Virtual Machine Monitoring, under Failures and Responses, select the following values:

    Setting

    Value

    Enable Host Monitoring

    Selected

    Host Failure Response

    Restart VMs

    Response for Host Isolation

    Power off and restart VMs

    Datastore with PDL

    Disabled

    Datastore with APD

    Disabled

    VM Monitoring

    VM Monitoring Only

  7. Click Admission Control.
  8. Under Admission Control enter the following settings.

    Setting

    Value

    Host failures cluster tolerates

    1

    Define host failover capacity by

    Cluster resource percentage

    Override calculated failover capacity

    Deselected

    Performance degradation VMs tolerate

    100%

  9. Click OK.