# Check available size on datastores on VMWare ESX
# 
# Revision History
# 2014-03-10	Willion van Es - Netdata [w.vanes@netdata.nl]	1.0 code initial created
# 2014-03-10	Robin Smit - Netdata [ r.smit@netdata.nl / info@robinsmit.nl ]
# To execute from within NSClient++
#
#[NRPE Handlers]
#check_exchange_dag_indexstate_health=cmd /c echo C:\Scripts\NagiosMonitoring_ExchangeContentIndexStateHealth.ps1 | PowerShell.exe -Command -
#
# On the check_nrpe command include the -t 20, since it takes some time to load
# the vSphere cmdlet's.

if ( (Get-PSSnapin -Name VMware.VimAutomation.Core -ErrorAction:SilentlyContinue) -eq $null)
{
    add-pssnapin VMware.VimAutomation.Core
}
$connect = connect-viserver ip.ad.dr.es -user administrator -password *******  -WarningAction SilentlyContinue 
$NagiosStatus = "0"
$NagiosDescription = ""
$datastorecheck = "SYN-SATA-1"


$datastores = get-datastore $datastorecheck | select-object Name,FreespaceGB | Sort Name

 ForEach ($datastore in $datastores) 
{ 
	$datastorename = $datastore | select-object -ExpandProperty Name
	$datastoresize = $datastore | Select-Object  -ExpandProperty FreespaceGB
	$comment = "GB available"
	
	if ($NagiosDescription -ne "") 
		{
			# Format the output for Nagios
			$NagiosDescription = "" 
		}
	if ($datastoresize -lt 50)
		{
			if ($datastoresize -lt 30)
				{
					#minder als 30GB vrij
					$NagiosDescription = $NagiosDescription + $datastorename + " = " + $datastoresize + $comment
					# Set the status to Critical.
					$NagiosStatus = "2"
					#echo 	$datastorename $datastoresize " lt 30"
				}
			else
				{
	
					$NagiosDescription = $NagiosDescription + $datastorename + " = " + $datastoresize + $comment
		           		# Set the status to Warning.
					$NagiosStatus = "1"
					#echo 	$datastorename $datastoresize " lt 50"
				}
		}
	if ($datastoresize -gt 50)
		{
				#meer als 50GB vrij
				$NagiosDescription = $NagiosDescription + $datastorename + " = " + $datastoresize + $comment
				# Set the status to failed.
				$NagiosStatus = "0"
				#echo 	$datastorename $datastoresize " bg 50"
		}	

if ($NagiosStatus -eq "2") 
{
	Write-Host "CRITICAL:" $NagiosDescription
    #$NagiosStatus = "0"
    #$NagiosDescription = ""

} 	
if ($NagiosStatus -eq "1")
{
	Write-Host "Warning:" $NagiosDescription 
    #$NagiosStatus = "0"
    #$NagiosDescription = ""

} 
if ($NagiosStatus -eq "0") 
{	
Write-Host "OK:" Datastore $datastorename has enough space available

}
		

exit $NagiosStatus		
		
		
		
} #end foreach