Windows 2019 reports 500 GB of free space on a disk; however, on the storage side, the LUN has 0 bytes free. When the host deletes files on the disk, auto re- claim on the thin-provisioned LUN does not occur.
In this scenario, which action should you take to enable space reclamation?
To enable space reclamation for a thin-provisioned LUN in Windows 2019, the space allocation option should be set to enable. This action allows the system to reclaim space automatically when the host deletes files on the disk.
Answer is A https://library.netapp.com/ecmdocs/ECMP1196784/html/GUID-6AD84908-041A-497D-95A7-BB6AFDD1B282.html