I need to restart the services on hundreds sometimes less depending on if backup jobs failed on the remote machine with
$services = "winmgmt", "cryptsvc", "vss"
$computers = get-content "${env:\userprofile}\servers.txt"
foreach ($srv in $ computers) {
get-service -computername $srv $services | restart-service -force
}
while this works, it does not do it asynchronously, only one at a time, is there a way I can send the job out to all the machines at once?
You can use Invoke-Command to run the command as a Job, you can then wait for all the jobs to complete, something like this should do it.
$computers = get-content "${env:\userprofile}\servers.txt"
$sb = {
$services = "winmgmt", "cryptsvc", "vss"
get-service -Name $services | Restart-Service -PassThru | Get-Service
}
Invoke-Command -ComputerName $computers -ScriptBlock $sb
Invoke-Command also accepts multiple computer names at once, so you could do Invoke-Command -ComputerName $computers -ScriptBlock $sb -AsJob |Wait-Job |Receive-Job
Demo of invoke-command running in parallel:
# elevated prompt
measure-command {
invoke-command localhost,localhost,localhost { sleep 5 } } |
% seconds
5
