An administrator has presented a thinly provisioned iSCSI LUN to your ESXi host. The administrator deleted data from the datastore in ESXi. No blocks have been freed on the LUN.
What are two of the steps the administrator should use to solve this problem? (Choose two.)
To solve the problem of no blocks being freed on the LUN after deleting data from the datastore in ESXi, the administrator should use the 'vmfs unmap' command, which reclaims unused blocks on the thinly provisioned LUN. Additionally, setting the space-allocation to enabled is crucial, as it allows the host to recognize and manage space allocation on the thinly provisioned LUNs effectively.
I don't think vmfs unmap (option A) is correct. Vmfs unmap should only be needed on older datastores that don't support automatic space reclamation and if unmap was being used then none of the other three would be needed. I think this question is referring to the steps for enabling space allocation on thin provisioned LUNs, which include the command to enable it (option D) and rescanning the storage from the host (option B). https://docs.netapp.com/us-en/ontap/san-admin/enable-space-allocation-scsi-thin-provisioned-luns-task.html "The space-allocation option is set to disabled by default, and you must take the LUN offline to enable space allocation. After you enable space allocation, you must perform discovery on the host before the host will recognize that space allocation has been enabled."