How do I know if VAAI is enabled on ESX/ESXi?

To determine if VAAI is enabled within ESX/ESXi:

  • In the vSphere Client inventory panel, select the host.
  • Click the Configuration tab, and click Advanced Settings under Software.
  • Check that these options are set to 1 (enabled):
DataMover/HardwareAcceleratedMove
DataMover/HardwareAcceleratedInit

VMFS3/HardwareAcceleratedLocking

Note: These options are enabled by default.

To determine if VAAI is enabled service console in ESX or the RCLI in ESXi, run the following commands and ensure that the value is 1:

# esxcfg-advcfg -g /DataMover/HardwareAcceleratedMove
# esxcfg-advcfg -g /DataMover/HardwareAcceleratedInit
# esxcfg-advcfg -g /VMFS3/HardwareAcceleratedLocking

Can I check the VAAI status from the command line?
To check VAAI status, run the command:

# esxcfg-scsidevs -l | egrep “Display Name:|VAAI Status:”

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