Parallel Azure VM Script

gistfile1.ps1

$vms = Get-azurevm | ?{ $_.Status -eq "StoppedDeallocated"} 
$jobs = @()
foreach ($vm in $vms)
{
    $params = @($vm.Name, $vm.ServiceName)
    $job = Start-Job -ScriptBlock {
        param($ComputerName, $ServiceName)
        start-Azurevm -Name $ComputerName -ServiceName $ServiceName
    } -ArgumentList $params 
    $jobs = $jobs + $job
}

# Wait for it all to complete
Wait-Job -Job $jobs

# Getting the information back from the jobs
Get-Job | Receive-Job

Updated - @stuartleeks pointed out that I can used the Wait-Job Cmdlet instead of the nasty loop, great tip! Also I now pass in the specific list of jobs so won't affect other things using ps jobs on the machine.