Showing posts with label Servers. Show all posts
Showing posts with label Servers. Show all posts

Wednesday, October 5, 2016

Put Scom Agents and Cluster Servers in Maintenance mode and reboot

Here is a script to put your scom agents including clusters in maintenance mode and rebooting them at a specified time. First you will have to create a task and a management pack in SCOM for rebooting the servers. Link on how to create the management pack is here. https://technet.microsoft.com/en-us/library/hh563486%28v=sc.12%29.aspx?f=255&MSPPError=-2147217396.
Works on System Center Operations Manager 2012 R2.

Create the input files and output files on the locations that you prefer. I have created them in C:\Reboots folder. Add your server names in the input file. Then the script given below can be put in a scheduled task and run at specified times or on demand. You can also run the script manually. Make sure that you modify the maintenance window.

I have not yet added any code to verify and alert if the rebooted servers are not back up.

Will probably do so at a later time. Till then feel free to use this one and modify any way that you like.

#################Script Start ####################################

$RootMS = "RMSName"
$Minutes =  90
$Comment = "Unknown"
#Setting up SCOM connection

Import-Module OperationsManager
$null = New-ScomManagementGroupConnection -ComputerName $RootMS
Add-PSSnapin "Microsoft.EnterpriseManagement.OperationsManager.Client" -ErrorAction SilentlyContinue

$eventLog = New-Object System.Diagnostics.EventLog("Operations Manager")
$eventLog.Source = "Maintenance Mode"

$Servers = GC "C:\Reboots\input.txt"
Function Out($output)
{
Out-File -Filepath "C:\Reboots\output.txt" -InputObject $output -Append
}

Out "###############  Starting Script at $(Get-Date)  ##########################"
foreach($Server in $Servers)
{

$output = "Starting for $Server on $(Get-date)"
Out $output

###Putting the agent and cluster in maintenance mode###########
$agent = Get-ScomAgent | Where-Object { $_.DisplayName –eq $Server -or $_.ComputerName -eq $Server -or $_.PrincipalName -eq $Server }
if(!$agent) { Write-Host "ERROR: $Server is not a monitored system in SCOM." -ForeGroundColor Red; Set-Location $originalPath; return }
$Server = $agent.PrincipalName
$startTime = (Get-Date).ToUniversalTime()
$endTime = $startTime.AddMinutes($Minutes)
if(($clusters = $agent.GetRemotelyManagedComputers())) {
$clusterNodeClass = Get-SCOMClass -Name Microsoft.Windows.Cluster.Node
foreach($cluster in $clusters) {
#$clusterObj = Get-SCOMClass -Name Microsoft.Windows.Cluster | Get-ScomMonitoringObject -Criteria "Name='$($cluster.ComputerName)'"
$clusterobj = Get-SCOMClass -Name Microsoft.Windows.Cluster | Get-SCOMClassInstance | ?{$_.displayname -eq $cluster.ComputerName}
if($clusterObj) {
$clusterObj.ScheduleMaintenanceMode($startTime,$endTime,"PlannedOther",$Comment,"Recursive")
$nodes = $clusterObj.GetRelatedMonitoringObjects($clusterNodeClass)
if($nodes) {
foreach($node in $nodes) {
Out "Putting $node into maintenance mode."
$eventLog.MachineName = $node.Name
$eventLog.WriteEntry("The server entered into maintenance mode $(if($Server -notcontains $node.Name){"on behalf of $Server"}).`r`n`r`nDuration:`t$Minutes minutes`r`nReason:`t$Comment","Information",42)
}
}
}
Out "Putting $($cluster.Computer) into maintenance mode."
New-MaintenanceWindow -StartTime $startTime -EndTime $endTime -MonitoringObject $cluster.Computer -Reason PlannedOther -Comment $Comment
}
}
else {
Out "Putting $Server into maintenance mode."
$eventLog.WriteEntry("The server entered into maintenance mode.`r`n`r`nDuration:`t$Minutes minutes`r`nReason:`t$Comment","Information",42)
New-MaintenanceWindow -StartTime $startTime -EndTime $endTime -MonitoringObject $agent.HostComputer -Reason PlannedOther -Comment $Comment
}
#####Sending commands to the server###########

$Task = Get-SCOMTask -DisplayName "Reboot Computer"
$Overrides = @{Arguments = '"$Target/Property[Type="MicrosoftWindowsLibrary7585010!Microsoft.Windows.Computer"]/PrincipalName$" "true"'}
$Instance = Get-SCOMClassInstance | ?{$_.Name -eq $agent.name}
Out "Starting task to reboot $($Instance.Displayname) at $(Get-Date)"
Start-SCOMTask -Task $Task -Override $Overrides -Instance $Instance

}

Out "###############  Script Complete at $(Get-Date) #########################"

#################Script End ####################################


I don't take credit for all the scripts that I written. Whenever I can credit the original creators, I do.  If I don't at times please do inform me so that I can include them in the page.