How to determine if VAAI features are supported by ESX

To confirm whether the ESX operating system supports the VAAI features, you can check the vSphere Client or use any other means of accessing the host. ONTAP supports the SCSI commands by default.

You can check your ESX host advanced settings to determine whether VAAI features are enabled. The table indicates which SCSI commands correspond to ESX control names.
SCSI command ESX control name (VAAI feature)
EXTENDED_COPY HardwareAcceleratedMove
WRITE_SAME HardwareAcceleratedInit
COMPARE_AND_WRITE HardwareAcceleratedLocking