Pivot3 Acuitys iSCSI is fully qualified for all VMware vSphere VAAI-Block capabilities that include: Thin Provisioning, HW Assisted Locking, Full Copy, Block Zero, UNMAP.

There are some functionality exceptions:
- Boot from SAN is not supported.
- Gaps in LUN sequence is not supported.
- VAAI Thin Provisioning Space Reclamation is not supported.

VAAI = VMware vSphere APIs for Array Integration