By default, versions below ESXi 6.5 do not support front-end data deletion, and the back-end ceph-iscsi LUN capacity is automatically released.
The command must be executed in the esxi shell terminal (any esxi connected to the ceph storage is fine)
[root@esxi1:~] esxcli storage vmfs unmap -l 存储器名称
It is normal for the command to execute for too long.
