Looking for a Powershell Script which can put the scom servers in maintenance mode

Question

Looking for a Powershell Script which can put the scom servers in maintenance mode so that SCOM should not send an alert during planned task.
Rahul

Answer 1

1. Provide list of servers line-by-line in C:\ServerList.txt, make sure you provide limited no. of servers, do not exceed 20 - 25 per batch
2. Save the script with suitable name (test.ps1)
3. Open PowerShell cmd prompt
4. Script accepts 3 params - TimeInMinutes, Reason and Comment
**** Please note, this script will work for SCOM 2012 R2
param([int32]$TimeMin, [string]$Reason, [string]$Comment)
try
$api = new-object -comObject 'MOM.ScriptAPI'
Import-Module operationsmanager
New-SCOMManagementGroupConnection
$Servers = Get-Content "C:\ServerList.txt"
$Time = (Get-Date).Addminutes($TimeMin)
Foreach ($Server in $Servers)
#Get Computer instance
$ComputerClass = Get-SCOMClass -Name Microsoft.Windows.Computer
$ComputerClassInstance = Get-SCOMClassInstance  -Class $ComputerClass | Where {$_.DisplayName -eq $Server}
If ($ComputerClassInstance -ne $Null)
$HealthServiceWatcherClass = Get-SCOMClass -name:Microsoft.SystemCenter.HealthServiceWatcher
#Get Health Service Watcher Class instance of the server
$HSWClass = Get-SCOMClass -Name Microsoft.SystemCenter.HealthServiceWatcher
$HSWClassIns = Get-SCOMClassInstance  -Class $HSWClass | Where {$_.DisplayName -eq $Server}
#Starting the maintenance mode
Start-SCOMMaintenanceMode -Instance $HSWClassIns -EndTime $Time -Reason $Reason -Comment $Comment
Start-SCOMMaintenanceMode -Instance $ComputerClassInstance -EndTime $Time  -Reason $Reason -Comment $Comment
Write-Host "Health Service Watcher and Agent server "$Server " kept in maintenance mode"  -foregroundcolor "green"
$api.LogScriptEvent('MaintenanceModeScript.ps1', 200, 0, "$Server kept in maintenance mode for $TimeMin minutes")
Else
Write-Host $Server" not found " -foregroundcolor "red"
$api.LogScriptEvent('MaintenanceModeScript.ps1', 201, 1, "$Server could not be found in domain")
Catch [system.exception]
$api.LogScriptEvent('MaintenanceModeScript.ps1', 201, 1, $_.Exception.Message)
Faizan