In an environment with multiple availability zones, if a site failure in Region B occurs, the witness appliance in Region B becomes inaccessible. As a result, one fault domain becomes unavailable for the vSAN stretched cluster. To continue provisioning virtual machines in Region A, configure vSAN by using the vSAN default storage policy to force-provision these virtual machines although they will be non-compliant until the witness appliance rejoins Region A.You perform this operation only when multiple availability zones are configured in your environment.


  1. In a Web browser, log in to vCenter Server by using the vSphere Client.
    Setting Value
    URL https://sfo01m01vc01.sfo01.rainpole.local/ui
    User name administrator@vsphere.local
    Password vsphere_admin_password
  2. In the Policies and profile inventory, click VM storage policies.
  3. On the VM storage policies page, select the vSAN default storage policyfor management vCenter Server and click Edit settings.

    The Edit VM storage policy wizard opens.

  4. On the Name and description page, leave the default values and click Next.
  5. On the vSAN page, click the Advanced policy rules tab, turn on the Force provisioning toggle switch and click Next.
  6. On the Storage compatibility page, leave the default values and click Next.
  7. On the Review and finish page, click Finish.

    VM Storage Policy in Use dialog box appears.

  8. In the vSAN Storage Policy in Use dialog box, from the Reapply to VMs drop-down menu, select Manually later and click Yes.