• Renaming a virtual machine folder on vSAN (formerly known as Virtual SAN) Datastore using Datastore Browser does not work.
• The virtual machine is already unregistered from the vCenter Inventory.
• Rename task fails with error:
  
  Error caused by file [vsanDatastore] <VM Name>

To work around this issue, use one of these options:

1. Unregister virtual machine from the vCenter Server.
2. Connect to ESXi host via SSH and navigate to the vSAN datastore:
   
   For Example: $ cd /vmfs/volumes/vsan:526a4992690a4ca5-3bc96c7f056d7fd1
3. List the contents of the datastore and take note of Namespace UUID of the virtual machine.
   
   $ ls -l
   lrwxr-xr-x 1 root root 36 <DATE><time> TestVM -> cf9b6e55-422c-23ba-c7da-b8ca3af6a80e
   </time>Note: In the above example, the Namespace uuid is cf9b6e55-422c-23ba-c7da-b8ca3af6a80e.
4. Run the below command to create a new folder with the Namespace UUID.
   
   For the above example, run:
   $ /usr/lib/vmware/osfs/bin/objtool setAttr -u cf9b6e55-422c-23ba-c7da-b8ca3af6a80e -n "NewTestVM"
   Object set attribute succeeded
5. The old virtual machine folder (TestVM) would now be renamed to NewTestVM
   
   Note:
   Replace the Namespace UUID with the one in your setup.
   There might be a delay of few minutes in reflecting this change. To refresh immediately restart the vSAN OSFSD service from SSH by running the command /etc/init.d/osfsd restart
6. Register the virtual machine from the new folder using Datastore Browser.

1. Power-Off the virtual machine.
2. Un-register the virtual machine from vCenter Server Inventory.
3. Create a new directory on the vSAN Datastore with the name virtual machine has to be renamed.
4. Move or copy the virtual machine files to the new directory using the Datastore browser.
5. Re-register the virtual machine using the VMX file in the new virtual machine folder.