Discovery all your controllers and retrieve a specific piece of info from each one.

[#1]

So my lab has a good number of controllers and my Boss walked in and wanted to know specifically where the FlexCache Cards we installed at located. Can I write a quick and dirty script to discover all the controllers in the lab, log onto each one using one of two default passwords, then find out if a FlexCache controller exists in each one.

An hour later this emerged. Its pretty rough, but it works well. I put in code to make sure the login was successful, as well as modified the output colors to make sure its fast to read the output.

function FindFlashDevice
   {    if (get-naflashdevice -erroraction silentlycontinue)
        {     $size=(get-naflashdevice).capacity/1024/1024/1024
              Write-host "Found a Flash Device of size "$size"GB." -foregroundcolor green
        }
       else
       {      write-host " - - No Flash Device Found" -foregroundcolor gray
       }
}

function ScanSubnet($IPAddr, $SubNetMask)
{     Write-host "Scanning Subnet "$IPAddr" with mask "$SubNetMask
      foreach($controller in find-nacontroller $IPAddr $SubNetMask)
      {     write-host " - Found Controller "$Controller.name
            if (Connect-NAController ($controller.address).ipaddresstostring –cred $cred1 -erroraction silentlycontinue)
           {      write-host " - - Connected using First Credentials" -foregroundcolor gray
                 FindFlashDevice
            }
           else
           {     if (Connect-NAController ($controller.address).ipaddresstostring –cred $cred2 -erroraction silentlycontinue)
                 {        write-host " - - Connected using second credentials" -foregroundcolor gray
                          FindFlashDevice
                 }
                 else
                {        write-host "Unable to connect to controller" -foregroundcolor red
                }
         }
    }
}

$pass1=ConvertTo-SecureString “secretpassword” –AsPlainText –Force
$pass2=ConvertTo-SecureString “othersecretpassword” –AsPlainText –Force
$cred1=New-Object –TypeName System.Management.Automation.PSCredential –Argumentlist “root”,$pass1
$cred2=New-Object –TypeName System.Management.Automation.PSCredential –Argumentlist “root”,$pass2

Write-host "---------------"
Write-host "Starting Script"
Write-host "---------------"

ScanSubnet "10.50.88.0" "255.255.255.0"
ScanSubnet "10.60.92.0" "255.255.252.0"
ScanSubnet "10.70.99.0" "255.255.255.0"

The output of the script looks like this.

I am sure I could do much more complex tasks, but this script shows how you can scan a farm of NetApp controllers.

Chris Lionetti