SQL> startup

　　ORACLE 例程已经启动。

　　Total System Global Area 289406976 bytes

　　Fixed Size                  1248576 bytes

　　Variable Size              83886784 bytes

　　Database Buffers          197132288 bytes

　　Redo Buffers                7139328 bytes

　　数据库装载完毕。

　　ORA-16038: 日志 2 序列号 44 无法归档

　　ORA-19809: 超出了恢复文件数的限制

　　ORA-00312: 联机日志 2 线程 1:

　　'D:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\REDO02.LOG'

　　2、查看$ORACLE_HOME\admin\SID\bdump\alert_SID.log日志

　　Thu Feb 19 09:45:33 2009

　　Errors in file d:\oracle\product\10.2.0\admin\orcl\bdump\orcl_arc1_660.trc:

　　ORA-19815: WARNING: db_recovery_file_dest_size of 2147483648 bytes is 99.95% used, and has 1129472 remaining bytes available.

　　Thu Feb 19 09:45:33 2009

　　Errors in file d:\oracle\product\10.2.0\admin\orcl\udump\orcl_ora_4708.trc:

　　ORA-19815: 警告: db_recovery_file_dest_size 字节 (共 2147483648 字节) 已使用 99.95%, 尚有 1129472 字节可用。

　　Thu Feb 19 09:45:33 2009

　　************************************************************************

　　You have following choices to free up space from flash recovery area:

　　1. Consider changing RMAN RETENTION POLICY. If you are using Data Guard,

　　Thu Feb 19 09:45:33 2009

　　************************************************************************

　　then consider changing RMAN ARCHIVELOG DELETION POLICY.

　　2. Back up files to tertiary device such as tape using RMAN

　　You have following choices to free up space from flash recovery area:

　　BACKUP RECOVERY AREA command.

　　3. Add disk space and increase db_recovery_file_dest_size parameter to

　　1. Consider changing RMAN RETENTION POLICY. If you are using Data Guard,

　　reflect the new space.

　　then consider changing RMAN ARCHIVELOG DELETION POLICY.

　　4. Delete unnecessary files using RMAN DELETE command. If an operating

　　system command was used to delete files, then use RMAN CROSSCHECK and

　　2. Back up files to tertiary device such as tape using RMAN

　　DELETE EXPIRED commands.

　　************************************************************************

　　BACKUP RECOVERY AREA command.

　　Thu Feb 19 09:45:34 2009

　　Errors in file d:\oracle\product\10.2.0\admin\orcl\bdump\orcl_arc1_660.trc:

　　ORA-19809: limit exceeded for recovery files

　　ORA-19804: cannot reclaim 44217856 bytes disk space from 2147483648 limit

　　从上面信息知道是flash recovery area闪回恢复空间中默认2G的空间被归档日志占满了，没有空间进行存放归档日志。