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.


Launch the vSphere Client and log in to a vCenter Server system.


  1. In the vSphere Client inventory panel, select the host.
  2. Click the Configuration tab, and click Advanced Settings under Software.
  3. Change the value for any of the options to 0 (disabled):
    • VMFS3.HardwareAcceleratedLocking
    • DataMover.HardwareAcceleratedMove
    • DataMover.HardwareAcceleratedInit