Can you also try to see where you actually writing ? *This is from 11gR2* SYS@ORACOS> oradebug setmypid Statement processed. SYS@ORACOS> alter database backup controlfile to trace; Database altered. SYS@ORACOS> oradebug tracefile_name; /u01/app/oracle/*diag/rdbms/*oracos/ORACOS*/trace/*ORACOS_ora_1422.trc *This is from 10gR2* * * * SYS@SOLARAC> oradebug setmypid Statement processed. SYS@SOLARAC> alter database backup controlfile to trace; Database altered. SYS@SOLARAC> oradebug tracefile_name; /u01/app/oracle/admin/SOLARAC/udump/solarac1_ora_24493.trc Regards -- Coskan GUNDOGAR Oracle DBA Email: gundogar@xxxxxxxxx Blog: http://coskan.wordpress.com Twitter: http://www.twitter.com/coskan Linkedin: http://uk.linkedin.com/in/coskan * On 19 March 2010 14:20, Roger Xu <wellmetus@xxxxxxxxx> wrote: > Oracle user has permission to write and plenty of free space but I > could not find it in either udump or bdump... still scrating my head > ... > > On Fri, Mar 19, 2010 at 4:12 AM, Dunbar, Norman > <norman.dunbar@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > > Morning, > > > >>> SQL> show parameter user_dump_dest > >>> /qadon/oradata/qadon/udump > > > > Does the oracle user on the server have permissions to write to the > > above location? I have had occasions where oracle couldn't even write to > > the bdump because the Unix guys hadn't set up the server permissions > > correctly! > > > > > > Cheers, > > Norm. > > > > > > Norman Dunbar > > Contract Senior Oracle DBA > > CIS Engineering Services > > Internal : 7 28 2051 > > External : 0113 231 2051 > > > -- > //www.freelists.org/webpage/oracle-l > > >