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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):


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:”

EVAPERF “Access to the host was NOT verified

Sometimes I get the “nice” message from EVAperf, when adding a new CV/EVA host to the access list:

c:\Program Files\Hewlett-Packerd\EVA Performance Monitor>evaperf fnh <username>
Access to the host was NOT verified
Host: not added to the list

This also goes when changing to localhost or the IP address of the host.

Turns out that the fqn of the host fixes this issue.