Set Scratch Location

Hi Guys,

I need to change the scratch file location on a bunch of ESXi Hosts. A lot of Servers lately are coming with dedicated (small) hard disks for the O/S plus, disks for vSAN.

The Default location of the scratch files is, where the O/S is installed. this is causing problems so, i want to move the Scratch files to a vSAN datastore (there may not be a VMFS datastore)

I've pieced the following together but would like any input on it before running it on a Production Environment

# login to vCenter

$table = @()

$prefix = ".scratch_"

$datastore = Get-Datastore | where {$_.Type -eq "VSAN"}

foreach ($ds in $datastore) {

    New-PSDrive -Location $ds -Name PSD -PSProvider VimDatastore -Root '' | Out-Null

    foreach ($h in ($ds | Get-VMHost)){

        $fqdn = $h.Name

        $hostName = $fqdn.Split(".")[0].TrimStart("{")

        $hostDS = $h | Get-Datastore | where {$_.Type -eq "VSAN"}

        $scratchFolder = "$($prefix)$($hostName)"

        $tableProp=[ordered]@{

            'Host FQDN'=$fqdn

            'Host Name'=$hostName

            'VSAN DS'= $hostDS

            }

        # Check to see if a scratch folder for the Host exists on the vSAN DS and create it if needed

        $scratchFolderPath = "/vmfs/volumes/$($hostDS.Name)/$scratchFolder"

        $scratchFolderPathExists = Test-Path -Path $scratchFolderPath | Out-Null

        if (-not ($scratchFolderPathExists)){

            New-Item -Path "PSD:\$scratchFolder" -ItemType Directory | Out-Null

            }

        # identify current Scratch Folder Settings

        $configuredScratch = $h | Get-AdvancedSetting -Name "ScratchConfig.ConfiguredScratchLocation"

        $configuredScratchValue = $configuredScratch.Value

        $currentScratch = $h | Get-AdvancedSetting -Name "ScratchConfig.CurrentScratchLocation"

        $currentScratchValue = $currentScratch.Value

        $tableProp.Add('Current Scratch Value', $currentScratchValue)

        # set new Scratch location

        $configuredScratch | Set-AdvancedSetting -Value $scratchFolderPath -Confirm:$false | Out-Null

        $tableProp.Add('New Scratch Location',$scratchFolderPath)

        # Place Host in Maintenance mode, reboot, exit Maintenance Mode, move to next Host

        Set-VMHost $h -State Maintenance -Evacuate

        Restart-VMHost $h

        Start-Sleep -Seconds 900

        $connectionState = Get-VMHost $h.ConnectionState

        while ($connectionState -eq "Maintenance") {

           Set-VMHost $h -state Connected

           }

        $table += New-Object -TypeName psobject -Property $tableProp

    }

    Remove-PSDrive -Name PSD -Confirm:$false

}

$table | Sort-Object -Property "Host FQDN" | ft -AutoSize