Use the esxcli command to query the block storage device about the hardware acceleration support the device provides.
In the procedure, --server=server_name specifies the target server. The specified target server prompts you for a user name and password. Other connection options, such as a configuration file or session file, are supported. For a list of connection options, see Getting Started with vSphere Command-Line Interfaces.
Install vCLI or deploy the vSphere Management Assistant (vMA) virtual machine. See Getting Started with vSphere Command-Line Interfaces. For troubleshooting, run esxcli commands in the ESXi Shell.
If the device is managed by a VAAI plug-in, 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 --server=server_name storage core device vaai status get -d naa.XXXXXXXXXXXX4c naa.XXXXXXXXXXXX4c VAAI Plugin Name: VMW_VAAIP_SYMM ATS Status: supported Clone Status: supported Zero Status: supported Delete Status: unsupported