Hi
I'm trying to reclaim free space at thin provisioned LUN using NMAP commands (vmkfstools -y). I am using a Netgear ReadyNAS 312 connected with ISCSI to my ESXi host.
Unfortunately, VAAI is not supported by my NAS:
esxcli storage core device vaai status get
naa
VAAI Plugin Name:
ATS Status: unsupported
Clone Status: unsupported
Zero Status: supported
Delete Status: unsupported
Since UNMAP is not supported (Devices backing volume [...] do not support UNMAP), are there other options to reclaim unused space?
Is the only option to solve this problem to make the LUN at the NAS a thick one instead of a thin one? Or do I need to make the VMDKs on the LUN thick?