the OSs isnt an issue even in 9i. we are backing AIX and sun with our catalog is on a sun server. ithink the only requirement is the catalog database version must be the version of the highest database you are backing up Fred Smith <fred_fred_1@xxxxxxxxxxx> wrote: Hello, I have an RMAN catalog database on SunOS 5.8 backing up 3 target databases on SunOS 5.8. I have 2 other production databases in HP-UX ... is it possible to backup the HP-UX databases via the same catalog database?? All database versions: 9.2.0.3 If not possible, is it possible in 10g? Thank you! _________________________________________________________________ FREE pop-up blocking with the new MSN Toolbar ? get it now! http://toolbar.msn.click-url.com/go/onm00200415ave/direct/01/ -- //www.freelists.org/webpage/oracle-l