Oracle控制文件损坏恢复

Oracle控制文件损坏恢复，SQLgt; alter database backup controlfile to trace; mdash;mdash;将控制文件备份到trace文件

一、使用trace文件恢复

SQL> alter database backup controlfile to trace; ——将控制文件备份到trace文件

Database altered.

SQL> @gettrace --得到trace文件的路径

TRACE_FILE_NAME
--------------------------------------------------------------------------------
/Oracle/app/admin/ora10g/udump/ora10g_ora_31270.trc

SQL> !
[oracle@ ~]$ more /oracle/app/admin/ora10g/udump/ora10g_ora_31270.trc

/oracle/app/admin/ora10g/udump/ora10g_ora_31270.trc
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options
ORACLE_HOME = /oracle/app/oracle/product/10.2.0/db_1
System name: Linux
Node name:
Release: 2.6.18-164.el5
.
.
.

-- ALTER DATABASE SET STANDBY DATABASE TO MAXIMIZE PERFORMANCE
STARTUP NOMOUNT
CREATE CONTROLFILE REUSE DATABASE "ORA10G" NORESETLOGS ARCHIVELOG
MAXLOGFILES 16
MAXLOGMEMBERS 3
MAXDATAFILES 100
MAXINSTANCES 8
MAXLOGHISTORY 292
LOGFILE
GROUP 1 '/oradata/ora10g/redo01.log' SIZE 50M,
GROUP 2 '/oradata/ora10g/redo02.log' SIZE 50M,
GROUP 3 '/oradata/ora10g/redo03.log' SIZE 50M
-- STANDBY LOGFILE
DATAFILE
'/oradata/ora10g/system01.dbf',
'/oradata/ora10g/undotbs01.dbf',
.
.
.

ALTER TABLESPACE TEMP ADD TEMPFILE '/oradata/ora10g/temp01.dbf'
SIZE 20971520 REUSE AUTOEXTEND ON NEXT 655360 MAXSIZE 32767M;
-- End of tempfile additions.
--

[oracle@ udump]$ cd
[oracle@ ~]$ vim recontro.sql ——拷贝trace文件中有用的语句重建控制文件。如果在之前没有备份的trace文件，，我们可以从init{SID}.ora文件中得到数据文件、日志文件、数据库表空间等信息，把init{SID}.ora文件中的内容按以下格式创建重构控制文件脚本

STARTUP NOMOUNT
CREATE CONTROLFILE REUSE DATABASE "ORA10G" NORESETLOGS ARCHIVELOG
MAXLOGFILES 16
MAXLOGMEMBERS 3
MAXDATAFILES 100
MAXINSTANCES 8
MAXLOGHISTORY 292
LOGFILE
GROUP 1 '/oradata/ora10g/redo01.log' SIZE 50M,
GROUP 2 '/oradata/ora10g/redo02.log' SIZE 50M,
GROUP 3 '/oradata/ora10g/redo03.log' SIZE 50M
DATAFILE
'/oradata/ora10g/system01.dbf',
'/oradata/ora10g/undotbs01.dbf',
'/oradata/ora10g/sysaux01.dbf',
'/oradata/ora10g/users01.dbf'
CHARACTER SET ZHS16GBK
;
VARIABLE RECNO NUMBER;
EXECUTE :RECNO := SYS.DBMS_BACKUP_RESTORE.SETCONFIG('CONTROLFILE AUTOBACKUP','OFF');
RECOVER DATABASE
ALTER SYSTEM ARCHIVE LOG ALL;
ALTER DATABASE OPEN;
SIZE 20971520 REUSE AUTOEXTEND ON NEXT 655360 MAXSIZE 32767M;
STARTUP NOMOUNT
CREATE CONTROLFILE REUSE DATABASE "ORA10G" RESETLOGS ARCHIVELOG
MAXLOGFILES 16
MAXLOGMEMBERS 3
MAXDATAFILES 100
MAXINSTANCES 8
MAXLOGHISTORY 292
LOGFILE
GROUP 1 '/oradata/ora10g/redo01.log' SIZE 50M,
GROUP 2 '/oradata/ora10g/redo02.log' SIZE 50M,
GROUP 3 '/oradata/ora10g/redo03.log' SIZE 50M
DATAFILE
'/oradata/ora10g/system01.dbf',
'/oradata/ora10g/undotbs01.dbf',
'/oradata/ora10g/sysaux01.dbf',
'/oradata/ora10g/users01.dbf'
CHARACTER SET ZHS16GBK
;
VARIABLE RECNO NUMBER;
EXECUTE :RECNO := SYS.DBMS_BACKUP_RESTORE.SETCONFIG('CONTROLFILE AUTOBACKUP','OFF');
RECOVER DATABASE USING BACKUP CONTROLFILE
ALTER DATABASE OPEN RESETLOGS;
SIZE 20971520 REUSE AUTOEXTEND ON NEXT 655360 MAXSIZE 32767M;
"recontro.sql" 49L, 1641C 已写入
[oracle@ ~]$ sqlplus / as sysdba

SQL*Plus: Release 10.2.0.1.0 - Production on Tue Jul 19 03:30:34 2011

Copyright (c) 1982, 2005, Oracle. All rights reserved.


Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options

SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> set echo on ——打开显示输出
SQL> @recontro ——使用刚建立的重构控制文件的脚本重建控制文件
SQL> STARTUP NOMOUNT
ORACLE instance started.

Total System Global Area 209715200 bytes
Fixed Size 1218556 bytes
Variable Size 75499524 bytes
Database Buffers 130023424 bytes
Redo Buffers 2973696 bytes
SQL> CREATE CONTROLFILE REUSE DATABASE "ORA10G" NORESETLOGS ARCHIVELOG
2 MAXLOGFILES 16
3 MAXLOGMEMBERS 3
4 MAXDATAFILES 100
5 MAXINSTANCES 8
6 MAXLOGHISTORY 292
7 LOGFILE
8 GROUP 1 '/oradata/ora10g/redo01.log' SIZE 50M,
9 GROUP 2 '/oradata/ora10g/redo02.log' SIZE 50M,
10 GROUP 3 '/oradata/ora10g/redo03.log' SIZE 50M
11 DATAFILE
12 '/oradata/ora10g/system01.dbf',
13 '/oradata/ora10g/undotbs01.dbf',
14 '/oradata/ora10g/sysaux01.dbf',
15 '/oradata/ora10g/users01.dbf'
16 CHARACTER SET ZHS16GBK
17 ;

Control file created.

SQL> VARIABLE RECNO NUMBER;
SQL> EXECUTE :RECNO := SYS.DBMS_BACKUP_RESTORE.SETCONFIG('CONTROLFILE AUTOBACKUP','OFF');

PL/SQL procedure successfully completed.

SQL> RECOVER DATABASE

SQL> ALTER SYSTEM ARCHIVE LOG ALL;

System altered.

SQL> ALTER DATABASE OPEN;

Database altered.

SQL> ALTER TABLESPACE TEMP ADD TEMPFILE '/oradata/ora10g/temp01.dbf'
2 SIZE 20971520 REUSE AUTOEXTEND ON NEXT 655360 MAXSIZE 32767M;

Tablespace altered.

SQL> STARTUP NOMOUNT
ORA-01081: cannot start already-running ORACLE - shut it down first
SQL> CREATE CONTROLFILE REUSE DATABASE "ORA10G" RESETLOGS ARCHIVELOG
2 MAXLOGFILES 16
3 MAXLOGMEMBERS 3
4 MAXDATAFILES 100
5 MAXINSTANCES 8
6 MAXLOGHISTORY 292
7 LOGFILE
8 GROUP 1 '/oradata/ora10g/redo01.log' SIZE 50M,
9 GROUP 2 '/oradata/ora10g/redo02.log' SIZE 50M,
10 GROUP 3 '/oradata/ora10g/redo03.log' SIZE 50M
11 DATAFILE
12 '/oradata/ora10g/system01.dbf',
13 '/oradata/ora10g/undotbs01.dbf',
14 '/oradata/ora10g/sysaux01.dbf',
15 '/oradata/ora10g/users01.dbf'
16 CHARACTER SET ZHS16GBK
17 ;
CREATE CONTROLFILE REUSE DATABASE "ORA10G" RESETLOGS ARCHIVELOG

SQL> VARIABLE RECNO NUMBER;
SQL> EXECUTE :RECNO := SYS.DBMS_BACKUP_RESTORE.SETCONFIG('CONTROLFILE AUTOBACKUP','OFF');

PL/SQL procedure successfully completed.

SQL> RECOVER DATABASE USING BACKUP CONTROLFILE

SQL> ALTER DATABASE OPEN RESETLOGS;

SQL> ALTER TABLESPACE TEMP ADD TEMPFILE '/oradata/ora10g/temp01.dbf'
2 SIZE 20971520 REUSE AUTOEXTEND ON NEXT 655360 MAXSIZE 32767M;
ALTER TABLESPACE TEMP ADD TEMPFILE '/oradata/ora10g/temp01.dbf'

Tablespace altered.
SQL> select open_mode from v$database;

OPEN_MODE
----------
READ WRITE