Oracle控制文件的恢复（一） Oracle控制文件如何恢复？

1、单个文件丢失

场景模拟：
[oracle@oracle dbs]$ rm /disk2/lx02/oradata/control03.ctl
[oracle@oracle dbs]$ sqlplus '/as sysdba'
SQL*Plus: Release 10.2.0.1.0 - Production on Mon Aug 1 06:14:54 2011
Copyright (c) 1982, 2005, Oracle.  All rights reserved.
Connected to an idle instance.
06:14:54 SQL> startup
ORACLE instance started.
Total System Global Area  176160768 bytes
Fixed Size                  1218364 bytes
Variable Size              88082628 bytes
Database Buffers           83886080 bytes
Redo Buffers                2973696 bytes
ORA-00205: error in identifying control file, check alert log for more info
通过告警日志获得信息：
ALTER DATABASE   MOUNT
Mon Aug  1 06:14:57 2011
ORA-00202: control file: '/disk2/lx02/oradata/control03.ctl'
ORA-27037: unable to obtain file status
Linux Error: 2: No such file or directory
Additional information: 3

恢复步骤：
06:14:57 SQL> shutdown
ORA-01507: database not mounted
ORACLE instance shut down.
06:15:14 SQL> !
[oracle@oracle dbs]$ cp /disk1/lx02/oradata/control02.ctl /disk2/lx02/oradata/control03.ctl
[oracle@oracle dbs]$ sqlplus '/as sysdba'
SQL*Plus: Release 10.2.0.1.0 - Production on Mon Aug 1 06:15:36 2011
Copyright (c) 1982, 2005, Oracle.  All rights reserved.
Connected to an idle instance.
06:15:37 SQL> startup
ORACLE instance started.
Total System Global Area  176160768 bytes
Fixed Size                  1218364 bytes
Variable Size              88082628 bytes
Database Buffers           83886080 bytes
Redo Buffers                2973696 bytes
Database mounted.
Database opened.
06:15:47 SQL> select name from v$controlfile;
NAME
-----------------------------------------------
/u01/app/oracle/oradata/lx02/control01.ctl
/disk1/lx02/oradata/control02.ctl
/disk2/lx02/oradata/control03.ctl

CUUG

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