1，dbca建库后台报错问题描述
[root@companydb1 rpms]# find / -name *alert*log
/mnt/resource/app/Oracle/diag/rdbms/strora/strora/trace/alert_strora.log
/mnt/resource/app/oracle/product/11.2.0/dbhome_1/log/diag/rdbms/dbua0/DBUA0/trace/alert_DBUA0.log
/mnt/resource/app/oracle/product/11.2.0/dbhome_1/oc4j/j2ee/oc4j_applications/applications/em/em/database/instance/alertlog
[root@companydb1 rpms]# tail -f /mnt/resource/app/oracle/diag/rdbms/strora/strora/trace/alert_strora.log
3. Add disk space and increase db_recovery_file_dest_size parameter to
reflect the new space.
4. Delete unnecessary files using RMAN DELETE command. If an operating
system command was used to delete files, then use RMAN CROSSCHECK and
DELETE EXPIRED commands.
************************************************************************
Errors in file /oracle/app/oracle/diag/rdbms/strora/strora/trace/strora_arc0_17846.trc:
ORA-19809: limit exceeded for recovery files
ORA-19804: cannot reclaim 15883776 bytes disk space from 5218762752 limit
ARC0: Error 19809 Creating archive log file to '/oracle/app/oracle/flash_recovery_area/strora/archivelog/2015_10_21/o1_mf_1_280_%u_.arc'
^C
[root@companydb1 rpms]#
2，解决方案之一rman删除旧归档
进入rman删除旧的归档日志
RMAN> delete archivelog all;
RMAN> crosscheck archivelog all;
3，解决方案之二扩大归档空间限制
首先找到archive文件的位置
SQL> show parameter background_dump_dest;
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
background_dump_dest string /oracle/app/oracle/diag/rdbms/
strora/strora/trace
SQL>
SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence 280
Next log sequence to archive 280
Current log sequence 282
SQL>
可以看到归档日志的位置是DB_RECOVERY_FILE_DEST，精确路径也可以查到
查看空间使用情况：
SQL> SELECT * FROM V$RECOVERY_FILE_DEST;
NAME
--------------------------------------------------------------------------------
SPACE_LIMIT SPACE_USED SPACE_RECLAIMABLE NUMBER_OF_FILES
----------- ---------- ----------------- ---------------
/oracle/app/oracle/flash_recovery_area
5218762752 5208036352 0 143
SQL>
然后就可以增加db_recovery_file_dest_size
SQL> alter system set db_recovery_file_dest_size=16G;
System altered.
：