On your host, the hardware acceleration for block storage devices is enabled by default. You can use the vSphere Client advanced settings to disable the hardware acceleration operations.

As with any advanced settings, before you disable the hardware acceleration, consult with the VMware support team.


  1. Navigate to the host.
  2. Click the Configure tab.
  3. Under System, click Advanced System Settings.
  4. Change the value for any of the options to 0 (disabled):
    • VMFS3.HardwareAcceleratedLocking
    • DataMover.HardwareAcceleratedMove
    • DataMover.HardwareAcceleratedInit