ORA-01274 issues with Oracle standby Libraries

ORA-01274 problem of Oracle standby database in standby database, initialization parameter STANDBY_FILE_MANAGEMENT is set to MANUAL environment, when the master database creates a data file, it MRP process stop, background media recovery failed. This is because the standby database cannot automatically create new files, which is determined by the parameter configuration. In alert. log, the log information is as follows: Thu Apr 11 16:44:37 2013 Primary database is in maximum performance modeRFS [4]: Successfully opened standby log 51: '+ VG1/lbesup/put' Thu Apr 11 16:44:40 2013 Media Recovery Log + VG1/lbesupg/archivelog/logs #12 added to control file as 'unnamed00012' becausethe parameter STANDBY_FILE_MANAGEMENT is set to MANUALThe file sho Could be manually created to continue. errors with log + VG1/lbesupg/archivelog/2013_04_11/thread_eclipseq_16122.1412.812479477mrp0: background Media Recovery terminated with error 1274Thu Apr 11 16:44:41 2013 Errors in file/u01/app/oracle/admin/lbesup/bdump/lbesup_mrp0_10220.trc: ORA-01274: cannot add datafile '+ VG1/lbesup/lb_78820.data01.dbf'-file cocould not be createdSome recovered datafiles maybe left Media fuzzyMedia recovery may continue but open resetlogs may failThu Apr 11 16:44:43 2013 Errors in file/u01/app/oracle/admin/lbesup/bdump/lbesup_mrp0_10220.trc: ORA-01274: cannot add datafile '+ VG1/lbesup/lb_78820.data01.dbf'-file cocould not be createdThu Apr 11 16:44:43 2013MRP0: Background Media Recovery process shutdown (lbesup) solution is simple and simple. SQL> alter database create datafile '/u01/app/oracle/product/10.2.0/db/dbs/UNNAMED00012' as '+ VG1/lbesup/lb_78820.data01.dbf'; Database altered. enable the recovery process and solve the problem.