Hi. Size of the cold backup is the sum(bytes) from v$datafile. For datapump you can use estimate_only parameter. 2010/5/26 KRISHNA MOORTHY <krish33moorthy@xxxxxxxxx> > Hi All. > > We have an 40 GB testing database(10G) running in linux with noarchive log > mode.That machine has less free space. > > The database used space (dba_segment size -32 GB). If i take rman backup in > > noarchivelog mode ,what would be the size of backup (32GB) or less. > > If we use datapump (full database) approxi.. how much dump size would > be.(40 > GB?) > > Regards > Krishna >