setup SRM with NetApp SAN


We just got SRM and want to get our NetApp 8.3 Data on Tap, Cluster Mode integrated into SRM.  When we go to run the Wizard and select Netapp On Command Unified Manager for Clustered Data on Tap, it says that SRM would communicate with The OnCommand Manager / Operations Manager / DFM Server.  although we have Data On Tap in Clustered mode, we do on have the OnCommand Manager.  Is there another way that we can get information into SRM without having the Oncommand Manager running.  Would be have to use the NetApp Filer option to do direct polling?

BTW, Forgive me, I am not a storage guy. so I hope my explanation makes sense.