Hi Alessandro, I often run several instances/databases on a host, with DG PSB databases at anotherhost, both test and production. I've never bothered about these two paramaters, no problem at all. Best regards, Carel-Jan Engel === If you think education is expensive, try ignorance. (Derek Bok) === On Sat, 2006-11-04 at 16:37 +0100, Alessandro Vercelli wrote: > Hi everybody, > I've configured a couple of primary/standby (physical) databases on two > separated hosts, 10.1.0.5, RHEL ES3. > > I've read DG Concepts and Administration manual, but I'm a little confused > about some parameters: > > Q1. DB_UNIQUE_NAME: is it mandatory to have them different when DG is on > separated hosts? > > Q2. INSTANCE_NAME: the same as Q1 + can be omitted? > > Thanks for your help, > > Alessandro > > > > > ------------------------------------------------------ > BANCA MEDIOLANUM cerca Family Banker. Invia il CV a www.familybanker.it > http://click.libero.it/mediolanum4nov > > > -- > //www.freelists.org/webpage/oracle-l > >