# Nagios Exchange 2010 DAG Replication Monitoring Script
# Author: Andy Grogan
# Version 1.0
# www.telnetport25.com
# ----------------------------------------
# Compatibility:
# ----------------------------------------
# Nagios Version: 3.x
# Exchange Version: 2010
# Powershell Version: 2.0
# NSClient++ Version: 3.x
# ----------------------------------------
Add-PSSnapin Microsoft.Exchange.Management.PowerShell.E2010
$DagMembers = Get-DatabaseAvailabilityGroup | select Servers
[array]$Servers = $DagMembers.Servers 

foreach($Entry in $Servers){
	$replHealthResult = Test-ReplicationHealth $Entry.Name
	foreach($element in $replHealthResult){	
		if($element.Result.toString() -ne "Passed"){
			$ReturnCode = $element.Result.toString()
			$ReturnError = $element.Error.toString()
			$Output += "CRITICAL: " + $Entry.Name + " " + $ReturnCode + " " + $ReturnError
		$statFlag = 1
	}else{
		$Res = "OK: Replication " + $Entry.Name
		$Output += $Res + " "
	}
	}
}

Write-Host $Output
if($statFlag -eq 1){
	exit 2
}else{
	exit 0
}