DRS Rule Export \ Import

As the title says, this is a Powershell Method for exporting all of your DRS rules to a .txt file that can later be used to import the rules back into a cluster.

It is great for cases where you wish to keep a back of your rules or are looking to migrate to a new vCenter server and do not wish to manually create all your DRS rules again.

Export: 

$outfile = "C:\rules.txt"
$rules = get-cluster | Get-DrsRule

foreach($rule in $rules){
  $line = (Get-View -Id $rule.ClusterId).Name
  $line += ("," + $rule.Name + "," + $rule.Enabled + "," + $rule.KeepTogether)
  foreach($vmId in $rule.VMIds){
    $line += ("," + (Get-View -Id $vmId).Name)
  }
  $line | Out-File -Append $outfile
}

Import: (Assumes your export was written to c:\rules.txt)

$file = "C:\rules.txt"
$rules = Get-Content $file

foreach($rule in $rules){
  $ruleArr = $rule.Split(",")
  if($ruleArr[2] -eq "True"){$rEnabled = $true} else {$rEnabled = $false}
  if($ruleArr[3] -eq "True"){$rTogether = $true} else {$rTogether = $false}
  get-cluster $ruleArr[0] | `
    New-DrsRule -Name $ruleArr[1] -Enabled $rEnabled -KeepTogether $rTogether\
    -VM (Get-VM -Name ($ruleArr[4..($ruleArr.Count - 1)]))
}