OMi 10.10 - upgrade wizard - database connection


When running the upgrade wizard (in a side by side BSM 9.25 upgrade) to which database should we connect in the following step "Specify administrative database access credentials"? 

I believe that we should specify the credentials do connect to the OMi 10 database, but the screen shot is showing the BSM database SID so this is confusing me. To which database instance should we connect in this step? OMi 10 or BSM 9.25 ?

Thank you

Bruno Bispo