Convert a Stretched Cluster to a Standard vSAN Cluster

You can decommission a stretched cluster and convert it to a standard vSAN cluster.

When you disable a stretched cluster, the witness host is removed, but the fault domain configuration remains. Because the witness host is not available, all witness components are missing for your virtual machines. To ensure full availability for your VMs, repair the cluster objects immediately.

Procedure

1. Navigate to the vSAN stretched cluster.
2. Click the Configure tab.
3. Under vSAN, click Fault Domains.
4. Disable the stretched cluster.

   Option	Description
   vSphere Client	Click Disable. The Remove Witness Host dialog opens. Click Remove to confirm.
   vSphere Web Client	Click the Stretched Cluster Configure button. The stretched cluster configuration wizard opens. Click Disable, and click Yes to confirm.

5. Remove the fault domain configuration.

   Option	Description
   vSphere Client	Select a fault domain, and choose menu Actions > Delete. Click Yes to confirm. Select the other fault domain, and choose menu Actions > Delete. Click Yes to confirm.
   vSphere Web Client	Select a fault domain and click the Remove selected fault domains icon. Click Yes to confirm. Select the other fault domain and click the Remove selected fault domains icon. Click Yes to confirm.

6. Repair the objects in the cluster.
   1. Click the Monitor tab.
   2. Under vSAN, click Health and click vSAN object health.
   3. Click Repair object immediately.
   vSAN recreates the witness components within the cluster.