Hi,
thanks for your help.... I am not really sure so I tried it once more and now I got at the same phase this error:
An error occurred while processing option SAP NetWeaver 7.0 including Enhancement Package 2 > SAP Application Server ABAP > MaxDB > Central System > Central System( Last error reported by the step :Error during execution of command identifier 'DB_CREATE' : com.sap.sdb.sllib.api.exceptions.ToolException: Error during command: C:\sapdb\programs\pgm\dbmcli.exe -R "C:\sapdb\NSP\db" db_create NSP *,* ERR -24953,ERR_DBEXIST: Database instance NSP already exists).