Access SAP after restoration of backup db2

Hello personnel,

I would like help from you to solve a problem.

SAP was installed on a server QAS, then made the restoration of another backup server "PRD" on the machine, "QAS", the database used and db2 v 9.1

The database has been successfully restored.

The problem in that when we raise the SAP SAP Managem occurs in the following error db_comnnect.

Suspect who is a user of the bank or the system.

Can anyone tell me if there is some procedure after the db2 restore this backup in another served?

Thanks.

Borges.