【ora-err】ORA-03113: end-of-file on communication channel

oracle 版本 11.2.0

SQL> startup

ORACLE instance started.
Total System Global Area  422670336 bytes
Fixed Size                  1336960 bytes
Variable Size             356518272 bytes
Database Buffers           58720256 bytes
Redo Buffers                6094848 bytes
Database mounted.
ORA-03113: end-of-file on communication channel
Process ID: 4545
Session ID: 1 Serial number: 5

----------------------------------------------------------------
1：查看trace文件 （位置：http://blog.csdn.net/yfb8530/article/details/8997374）

/u01/app/oracle/diag/rdbms/orcl/ORCL

2：按trace记录的原因操作

[oracle@rhel flashback]$ rman target /

Recovery Manager: Release 11.2.0.1.0 - Production on Fri May 31 00:12:52 2013
Copyright (c) 1982, 2009, Oracle and/or its affiliates.  All rights reserved.
connected to target database (not started)

RMAN> startup mount 
Oracle instance started
database mounted
Total System Global Area     422670336 bytes
Fixed Size                     1336960 bytes
Variable Size                356518272 bytes
Database Buffers              58720256 bytes
Redo Buffers                   6094848 bytes

RMAN> crosscheck archivelog all;

RMAN> delete expired archivelog all;

RMAN> alter database open;

database opened