ARR状态监控脚本

#####################################################################################
# THIS IS SAMPLE CODE AND IS ENTIRELY UNSUPPORTED. THIS CODE AND INFORMATION        #
# IS PROVIDED "AS-IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED,    #
# INCLUDING BUT NOT LIMITED TO AN IMPLIED WARRANTY OF MERCHANTABILITY AND/OR        #
# FITNESS FOR A PARTICULAR PURPOSE.                                                 #
#####################################################################################

# First add a reference to the MWA dll
$dll=[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.Web.Administration")

#Get the manager and config object
$mgr = new-object Microsoft.Web.Administration.ServerManager
$conf = $mgr.GetApplicationHostConfiguration()

#Get the webFarms section
$section = $conf.GetSection("webFarms")
$webFarms = $section.GetCollection()


foreach ($webFarm in $webFarms)
{
    $Name= $webFarm.GetAttributeValue("name");
    #Get the servers in the farm
    $servers = $webFarm.GetCollection()
    Write-Host  "Farm Name: " $Name
    foreach($server in $servers)
    {
         $ip= $server.GetAttributeValue("address")
         #Get the ARR section
         $arr = $server.GetChildElement("applicationRequestRouting")
         $counters = $arr.GetChildElement("counters")
         $isHealthy=$counters.GetAttributeValue("isHealthy")
         $state= $counters.GetAttributeValue("state")
         switch ($state)
         {
                0 {$state= "Available"}
                1 {$state= "Drain"}
                2 {$state= "Unavailable"}
                default {$state= "Non determinato"}
         }

        if( $isHealthy)
        {
            $isHealthy="Healthy"
        }
        else
        {
            $isHealthy="Not Healthy"
        }
         Write-Host -NoNewLine $ip  " " $state " " $isHealthy
         #NEW LINE
         Write-Host
    }
    #NEW LINE
    Write-Host
}

Output shows all web farms installed on your server plus the status of each application server.

From：http://blogs.msdn.com/b/carmelop/archive/2013/04/29/how-to-monitor-application-request-routing-via-powershell.aspx