Use the esxcli command to query whether the block storage device provides the hardware acceleration support.


Install ESXCLI. See Getting Started with ESXCLI. For troubleshooting, run esxcli commands in the ESXi Shell.


  • Run the esxcli storage core device vaai status get -d=device_ID command.
    If a VAAI plug-in manages the device, the output shows the name of the plug-in attached to the device. The output also shows the support status for each T10 SCSI based primitive, if available. Output appears in the following example:
    # esxcli storage core device vaai status get -d naa.XXXXXXXXXXXX4c
     VAAI Plugin Name: VMW_VAAIP_SYMM
     ATS Status: supported
     Clone Status: supported
     Zero Status: supported
     Delete Status: unsupported