I have a LUN (thin) that was VMFS5 and grows to 9TB, but VMware only shows 5TB. Now, I formated (again) with VMFS6 but continue to show 9TB, I tried the command (esxcli storage vmfs unmap -l VM01), but Unisphere continue to show 9TB allocated, and VMware only shows 1TB.

May I have to destroy the LUN to recover the space?

Can reboot or OS upgrade solve the problem?

Thanks in advance