Directory

Exactly what I needed. I am running Server 2012 so there were some tweaks needed. Listed here to help others in the same situation:

The 2012 version of HP array Configuration Utility will not work with this. Instead, Install the HP Smart Storage Administrator (cp019294.exe) and the HP Smart Storage Administrator CLI (cp019296.exe).

Now edit the check_smartarray.ps1 file:
- Change Line 195 to point to hpssacli.exe (in my case it is C:Program Fileshphpssacliinhpssacli.exe)

Copy the check_smartarray.ps1 file into the "scripts" subfolder within the installation path of the nsclient on each server you want to monitor.

Now edit the NSC.ini on each HP Server you wish to monitor (found in the NSClient Folder):
Add the following:
check_raid=cmd /c echo scripts/check_smartarray.ps1; exit $LastExitCode | powershell.exe -Command -

(that was all one line)

Enable Powershell Script Execution on each server you want to monitor:

Run Powershell as Administrator
Type - Set-ExecutionPolicy Remote-Signed
Agree to the prompt

Now Restart the NSClient Service

After doing this it would work correctly.