Interesting... Here's my FreeNAS iSCSI datastore:
Code:
naa.6589cfc00000089ff66456f17342b39e
VAAI Plugin Name:
ATS Status: supported
Clone Status: supported
Zero Status: supported
Delete Status: supported
This is 6.0.0u3 + patches, with the "free" license. Meaning I'm registered with VMWare, but have not paid them any $$. Just ESXi, no vSphere, etc... Maybe they consider that "licensed" for VAAI purposes.
But that output seems to imply that the first three I listed are in use, or at least available to be used.