ORA-27041: unable to open file
Linux Error: 2: No such file or directory
Additional information: 3
关闭数据库：
BYS@ bys3>conn / as sysdbaConnected.
SYS@ bys3>shutdown immediate;
Database closed.
ORA-03113: end-of-file on communication channel
Process ID: 15566
Session ID: 51 Serial number: 223
关库时日志：
ALTER DATABASE DISMOUNTShutting down archive processes
Archiving is disabled
********************* ATTENTION: ********************
The controlfile header block returned by the OS
has a sequence number that is too old.
The controlfile might be corrupted.
PLEASE DO NOT ATTEMPT TO START UP THE INSTANCE
without following the steps below.
RE-STARTING THE INSTANCE CAN CAUSE SERIOUS DAMAGE
TO THE DATABASE, if the controlfile is truly corrupted.
In order to re-start the instance safely,
please do the following:
(1) Save all copies of the controlfile for later
analysis and contact your OS vendor and Oracle support.
(2) Mount the instance and issue:
ALTER DATABASE BACKUP CONTROLFILE TO TRACE;
(3) Unmount the instance.
(4) Use the script in the trace file to
打开数据库：
[oracle@bys3 ~]$ sqlplus / as sysdbaSQL*Plus: Release 11.2.0.4.0 Production on Fri Mar 7 12:16:10 2014
Copyright (c) 1982, 2013, Oracle. All rights reserved.
Connected to an idle instance.
SYS@ bys3>startup
ORACLE instance started.
Total System Global Area 225996800 bytes
Fixed Size 1363692 bytes
Variable Size 150995220 bytes
Database Buffers 67108864 bytes
Redo Buffers 6529024 bytes
Database mounted.
Database opened.
打开库时的日志
ALTER DATABASE MOUNT
Fri Mar 07 12:16:21 2014
Sweep [inc][246535]: completed
……………………………………
Sweep [inc2][246423]: completed
Sweep [inc2][246415]: completed
Sweep [inc2][246407]: completed
Successful mount of redo thread 1, with mount id 3368434514
Database mounted in Exclusive Mode
Lost write protection disabled
Completed: ALTER DATABASE MOUNT