Hello list, We have a standby database for one of bank critical database. Unfortunately, when we added a datafile to the production database, there was no space left on standby database server and oracle couldn't create the file on standby server and alter log says the following: == File #194 added to control file as 'UNNAMED00194'. Originally created as: '/u2camm1/oradata/SYMP/SYMPperfstat03.dbf' Recovery was unable to create the file as: '/u2camm1/oradata/SYMP/SYMPperfstat03.dbf' Sun Aug 28 09:42:21 2005 MRP0: Background Media Recovery terminated with error 1274 Sun Aug 28 09:42:22 2005 Errors in file /u2camm1/oradba/admin/SYMP/bdump/symp_mrp0_598062.trc: ORA-01274: cannot add datafile '/u2camm1/oradata/SYMP/SYMPperfstat03.dbf' - file could not be created ORA-19502: write error on file "/u2camm1/oradata/SYMP/SYMPperfstat03.dbf", blockno 19969 (blocksize=8192) ORA-27063: skgfospo: number of bytes read/written is incorrect IBM AIX RISC System/6000 Error: 28: No space left on device Additional information: -1 Additional information: 1048576 ORA-19502: write error on file "/u2camm1/oradata/SYMP/SYMPperfstat03.dbf", blockno 19713 (blocksize=8192) ORA-27063: skgfospo: number of bytes read/written is incorrect IBM AIX RISC System/6000 Error: 28: No space left on device Additional information: -1 Additional information: 1048576 Some recovered datafiles maybe left media fuzzy Media recovery may continue but open resetlogs may fail MRP0: Background Media Recovery process shutdown Sun Aug 28 10:07:11 2005 === I try to stop and start the standby database, the MRP background process dies and not able to apply archived to the stand database. -- Best Regards, Syed Jaffar Hussain OCP 8i & 9i DBA, ---------------------------------------------------------------------------------------- "It is your atittude, not your aptitude that determins your altitude." -- //www.freelists.org/webpage/oracle-l