1-Shutdown the DB
2-copy all .DBF .LOG to the new location. Do not copy the .CTL files at this step.
3-startup mount
3-alter data~base rename file 'old location' to 'new location' ; ... for all .DBF and .LOG files
Oracle finds them in the new location
4-alter system set control_file=[list of CTL files in new location] scope=spfile
5-alter system set core_dump_dest=[new empty location for cdump] scope=spfile
6-alter system set user_dump_dest=[new empty location for udump] scope=spfile
7-alter system set background_dump_dest=[new empty location for bdump] scope=spfile
(CTL are still in old location but contain information about the new location)
8-shutdown
9-copy all .CTL files to the new location
10-startup
