You can replace or change the witness host for a vSAN stretched cluster.

Change the ESXi host used as a witness host for your vSAN stretched cluster.


Verify that the witness host is not in use by another cluster, has a VMkernel configured for vSAN traffic, and has no vSAN partitions on its disks.


  1. Navigate to the vSAN cluster.
  2. Click the Configure tab.
  3. Under vSAN, click Fault Domains.
  4. Click the Change button. The Change Witness Host wizard opens.
  5. Select a new host to use as a witness host, and click Next.
  6. Claim disks on the new witness host, and click Next.
  7. On the Ready to complete page, review the configuration, and click Finish.