Remove VMFS datastore

You can remove a VMFS datastore from your ESXi host in two ways:

  • delete a VMFS datastore – destroys the pointers to the files on the datastore, so that the files disappear from all ESXi hosts that have access to the datastore.
  • unmount a VMFS datastore – preserves the files on the datastore, but makes the datastore inaccessible to the ESXi host.

Before deleting or unmounting a VMFS datastore, make sure that all virtual machines whose disks reside on the datastore are powered off. Before unmounting a VMFS datastore, make sure that the following prerequisites are met:

  • no virtual machines reside on the datastore.
  • the datastore is not part of a datastore cluster.
  • storage I/O control is disabled.
  • the datastore is not used for HA heartbeat or Storage DRS.

 

If you want to keep the data, back up the content of the datastore before you delete it.
Geek University 2021