We deleted a VM folder on a datastore but don't see the space the VM was taking up reflected in the free space of the datastore. The VM folder held a out-of-production VM that had not been used since 2016. It was 4TB. It may or may not have been removed from inventory back then. When deleting the files, delete from disk was chosen. The VM storage was not thin provisioned. It is iSCSI to an EMC 3250 SAN.
How can we reclaim the 4TB of storage?
Thanks a lot