I needed a quick way to generate a report about VAAI status for all hosts in the vCenter Server. Hence wrote a PowerCLI oneliner to get the job done:

Get-VMHost  | %{ 
  Get-AdvancedSetting -Name DataMover.HardwareAcceleratedMove -Entity $_
  Get-AdvancedSetting -Name DataMover.HardwareAcceleratedInit -Entity $_
  Get-AdvancedSetting -Name VMFS3.HardwareAcceleratedLocking  -Entity $_
} | Select-Object `
        @{Name="Name"; Expression={$_.Entity}},`
        @{Name="PropertyName"; Expression={$_.Name}},`
        @{Name="Status"; Expression={ if($_.Value){"Enabled"} else{"Disabled"}}}

In case you are not aware of what VAAI is read about it here at KB#1021976.