I am getting following errro when executing:

DBCC REBUILD_LOG('dbname,'dbname_Log.LDF')

ERROR:

Server: Msg 5030, Level 16, State 1, Line 1

The database could not be exclusively locked to perform the operation.

DBCC execution completed. If DBCC...

1. Install IBM iSeries Access for windows ODBC Driver. This driver comes with IBM's AS/400 software.
2. Create a Data Source selecting the...