ORA-03113: end-of-file on communication channel

今天打开自己电脑上的RHEL6.5单机11.2.0.4的数据库时报错：

SQL> startup
ORACLE instance started.

Total System Global Area  413372416 bytes
Fixed Size                  2253784 bytes
Variable Size             327158824 bytes
Database Buffers           79691776 bytes
Redo Buffers                4268032 bytes
Database mounted.
ORA-03113: end-of-file on communication channel
Process ID: 2420
Session ID: 1 Serial number: 5

OK，开始解决：

查看alert日志：

Errors in file /u01/app/oracle/diag/rdbms/single1/single1/trace/single1_ora_2669
.trc:
ORA-19815: WARNING: db_recovery_file_dest_size of 2116026368 bytes is 100.00% us
ed, and has 0 remaining bytes available.

同时，alert日志中还有解决建议：

************************************************************************
You have following choices to free up space from recovery area:
1. Consider changing RMAN RETENTION POLICY. If you are using Data Guard,
   then consider changing RMAN ARCHIVELOG DELETION POLICY.
2. Back up files to tertiary device such as tape using RMAN
   BACKUP RECOVERY AREA command.
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.
************************************************************************

那就解决：

SQL> conn / as sysdba
Connected to an idle instance.
SQL> startup nomount
ORACLE instance started.

Total System Global Area  413372416 bytes
Fixed Size                  2253784 bytes
Variable Size             327158824 bytes
Database Buffers           79691776 bytes
Redo Buffers                4268032 bytes
SQL> alter database mount;

Database altered.

操作系统删掉了归档（注意备份软件对于归档的应用）

rman下crosscheck然后delete。

SQL> alter database open;

Database altered.

搞定！！