[SOLVED] restart-computer with logs or result

restart-computer with logs or result

I need to restart 5 or 6 computers at the same time. It works nice with the command restart-computer. But I want to add -wait to be sure each server has restarted.

So, of course, I can do something like this:

foreach ($VMs in $Servers){
    restart-computer $Servers -force -wait
    Write-Output "$vms has been rebooted"
}

I tried with -asjob, but I don't really understand how it works and how I can have a result. Also, it means I can't use -wait anymore.

Is there a way to export the result of restart-computer to a log or an array?
How can I know if one of the server could not restart, and will the script will continue to run if it's the case?

Solution

Restart-Computer gives no output of its own.
That said, you can simply do something like

# Creates string list to collect the logs
$RestartLog = [System.Collections.Generic.List[object]]@()

foreach ($VM in $VMList) {
    # restarts $VM, by force, waits for Powershell to be available, checks every 2 seconds for a total of 300 seconds(5minutes) 
    # if you do not set -Timeout, it will wait forever
    # if the computer doesn't answer before the Timeout is reached, the command goes on.
    Restart-Computer $VM -Force -Wait -For PowerShell -Timeout 300 -Delay 2 -WhatIf

    # Prepares Log line
    $RestartLine = 'Computer {0} has been restarted at {1}' -f $VM, (Get-Date)

    # add string to list
    $RestartLog.Add($RestartLine)

    # optional: write it to the screen
    Write-Host $RestartLine
}

# append list to log file
$RestartLog | Out-File -FilePath $FileLog -Append