前些天在做Oracle数据库恢复测试时，因为一些异常操作导致控制文件出了问题，数据库无法正常使用，这里记录一下重建控制文件的操作
一、使用sysdba用户登入数据库
此时普通用户已无法链接数据库
二、启动数据库到mount状态
此时可以看出异常来源：由于控制文件中的实例名与实例本身实例名不一致导致数据库实例无法正常启用
三、获取创建控制文件的脚本格式
在Oracle中我们可以通过 alter database backup controlfile to trace; 命令获取控制文件的创建方法，但由于此时实例ORCL上的控制文件已经出现异常，我们无法在这个实例上获取.trc文件；不过我们可以使用这条命令在其他正常的实例上获取此文件，并根据实际情况创建重建控制文件的脚本。一下是具体方法：
获取文件，重命名并保存到/tmp目录下，方便查看
1 [oracle@node00 ~]$ sqlplus / as sysdba 2 3 4 5 SQL*Plus: Release 11.2.0.4.0 Production on 星期四 3月 9 16:45:50 2017 6 7 8 9 Copyright (c) 1982, 2013, Oracle. All rights reserved. 10 11 12 13 14 15 Connected to: 16 17 Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production 18 19 With the Partitioning, OLAP, Data Mining and Real Application Testing options 20 21 22 23 SQL> alter database backup controlfile to trace as '/tmp/control_rebuild.trc' 24 25 2 ; 26 27 28 29 Database altered.
查看重建控制文件的格式
[oracle@node00 ~]$ more /tmp/control_rebuild.trc
-- The following are current System-scope REDO Log Archival related -- parameters and can be included in the database initialization file. -- -- LOG_ARCHIVE_DEST='' -- LOG_ARCHIVE_DUPLEX_DEST='' -- -- LOG_ARCHIVE_FORMAT=%t_%s_%r.dbf -- -- DB_UNIQUE_NAME="node00" -- -- LOG_ARCHIVE_CONFIG='SEND, RECEIVE, NODG_CONFIG' -- LOG_ARCHIVE_MAX_PROCESSES=4 -- STANDBY_FILE_MANAGEMENT=MANUAL -- STANDBY_ARCHIVE_DEST=?/dbs/arch -- FAL_CLIENT='' -- FAL_SERVER='' -- -- LOG_ARCHIVE_DEST_1='LOCATION=USE_DB_RECOVERY_FILE_DEST' -- LOG_ARCHIVE_DEST_1='MANDATORY NOREOPEN NODELAY' -- LOG_ARCHIVE_DEST_1='ARCH NOAFFIRM EXPEDITE NOVERIFY SYNC' -- LOG_ARCHIVE_DEST_1='NOREGISTER NOALTERNATE NODEPENDENCY' -- LOG_ARCHIVE_DEST_1='NOMAX_FAILURE NOQUOTA_SIZE NOQUOTA_USED NODB_UNIQUE_NAME' -- LOG_ARCHIVE_DEST_1='VALID_FOR=(PRIMARY_ROLE,ONLINE_LOGFILES)' -- LOG_ARCHIVE_DEST_STATE_1=ENABLE -- -- Below are two sets of SQL statements, each of which creates a new -- control file and uses it to open the database. The first set opens -- the database with the NORESETLOGS option and should be used only if -- the current versions of all online logs are available. The second -- set opens the database with the RESETLOGS option and should be used -- if online logs are unavailable. -- The appropriate set of statements can be copied from the trace into -- a script file, edited as necessary, and executed when there is a -- need to re-create the control file. -- -- Set #1. NORESETLOGS case -- -- The following commands will create a new control file and use it -- to open the database. -- Data used by Recovery Manager will be lost. -- Additional logs may be required for media recovery of offline -- Use this only if the current versions of all online logs are -- available. -- After mounting the created controlfile, the following SQL -- statement will place the database in the appropriate -- protection mode: -- ALTER DATABASE SET STANDBY DATABASE TO MAXIMIZE PERFORMANCE STARTUP NOMOUNT CREATE CONTROLFILE REUSE DATABASE "NODE00" NORESETLOGS ARCHIVELOG MAXLOGFILES 16 MAXLOGMEMBERS 3 MAXDATAFILES 100 MAXINSTANCES 8 MAXLOGHISTORY 292 LOGFILE GROUP 1 '/u01/app/oracle/oradata/node00/redo01.log' SIZE 50M BLOCKSIZE 512, GROUP 2 '/u01/app/oracle/oradata/node00/redo02.log' SIZE 50M BLOCKSIZE 512, GROUP 3 '/u01/app/oracle/oradata/node00/redo03.log' SIZE 50M BLOCKSIZE 512 -- STANDBY LOGFILE DATAFILE '/u01/app/oracle/oradata/node00/system01.dbf', '/u01/app/oracle/oradata/node00/sysaux01.dbf', '/u01/app/oracle/oradata/node00/undotbs01.dbf', '/u01/app/oracle/oradata/node00/users01.dbf', '/u01/app/oracle/oradata/test001.dbf' CHARACTER SET AL32UTF8 ; -- Configure RMAN configuration record 1 VARIABLE RECNO NUMBER; EXECUTE :RECNO := SYS.DBMS_BACKUP_RESTORE.SETCONFIG('CONTROLFILE AUTOBACKUP','ON'); -- Commands to re-create incarnation table -- Below log names MUST be changed to existing filenames on -- disk. Any one log file from each branch can be used to -- re-create incarnation records. -- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/fast_recovery_area/NODE00/archivelog/2017_03_09/o1_mf_1_1_%u_.arc'; -- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/fast_recovery_area/NODE00/archivelog/2017_03_09/o1_mf_1_1_%u_.arc'; -- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/fast_recovery_area/NODE00/archivelog/2017_03_09/o1_mf_1_1_%u_.arc'; -- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/fast_recovery_area/NODE00/archivelog/2017_03_09/o1_mf_1_1_%u_.arc'; -- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/fast_recovery_area/NODE00/archivelog/2017_03_09/o1_mf_1_1_%u_.arc'; -- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/fast_recovery_area/NODE00/archivelog/2017_03_09/o1_mf_1_1_%u_.arc'; -- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/fast_recovery_area/NODE00/archivelog/2017_03_09/o1_mf_1_1_%u_.arc'; -- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/fast_recovery_area/NODE00/archivelog/2017_03_09/o1_mf_1_1_%u_.arc'; -- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/fast_recovery_area/NODE00/archivelog/2017_03_09/o1_mf_1_1_%u_.arc'; -- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/fast_recovery_area/NODE00/archivelog/2017_03_09/o1_mf_1_1_%u_.arc'; -- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/fast_recovery_area/NODE00/archivelog/2017_03_09/o1_mf_1_1_%u_.arc'; -- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/fast_recovery_area/NODE00/archivelog/2017_03_09/o1_mf_1_1_%u_.arc'; -- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/fast_recovery_area/NODE00/archivelog/2017_03_09/o1_mf_1_1_%u_.arc'; -- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/fast_recovery_area/NODE00/archivelog/2017_03_09/o1_mf_1_1_%u_.arc'; -- Recovery is required if any of the datafiles are restored backups, -- or if the last shutdown was not normal or immediate. RECOVER DATABASE -- All logs need archiving and a log switch is needed. ALTER SYSTEM ARCHIVE LOG ALL; -- Database can now be opened normally. ALTER DATABASE OPEN; -- Commands to add tempfiles to temporary tablespaces. -- Online tempfiles have complete space information. -- Other tempfiles may require adjustment. ALTER TABLESPACE TEMP ADD TEMPFILE '/u01/app/oracle/oradata/node00/temp01.dbf' SIZE 61865984 REUSE AUTOEXTEND ON NEXT 655360 MAXSIZE 32767M; ALTER TABLESPACE TEMP001 ADD TEMPFILE '/u01/app/oracle/oradata/temp001.dbf' SIZE 209715200 REUSE AUTOEXTEND ON NEXT 33554432 MAXSIZE 2048M; -- End of tempfile additions. -- -- Set #2. RESETLOGS case -- -- The following commands will create a new control file and use it -- to open the database. -- Data used by Recovery Manager will be lost. -- The contents of online logs will be lost and all backups will -- be invalidated. Use this only if online logs are damaged. -- After mounting the created controlfile, the following SQL -- statement will place the database in the appropriate -- protection mode: -- ALTER DATABASE SET STANDBY DATABASE TO MAXIMIZE PERFORMANCE STARTUP NOMOUNT CREATE CONTROLFILE REUSE DATABASE "NODE00" RESETLOGS ARCHIVELOG MAXLOGFILES 16 MAXLOGMEMBERS 3 MAXDATAFILES 100 MAXINSTANCES 8 MAXLOGHISTORY 292 LOGFILE GROUP 1 '/u01/app/oracle/oradata/node00/redo01.log' SIZE 50M BLOCKSIZE 512, GROUP 2 '/u01/app/oracle/oradata/node00/redo02.log' SIZE 50M BLOCKSIZE 512, GROUP 3 '/u01/app/oracle/oradata/node00/redo03.log' SIZE 50M BLOCKSIZE 512 -- STANDBY LOGFILE DATAFILE '/u01/app/oracle/oradata/node00/system01.dbf', '/u01/app/oracle/oradata/node00/sysaux01.dbf', '/u01/app/oracle/oradata/node00/undotbs01.dbf', '/u01/app/oracle/oradata/node00/users01.dbf', '/u01/app/oracle/oradata/test001.dbf' CHARACTER SET AL32UTF8 ; -- Configure RMAN configuration record 1 VARIABLE RECNO NUMBER; EXECUTE :RECNO := SYS.DBMS_BACKUP_RESTORE.SETCONFIG('CONTROLFILE AUTOBACKUP','ON'); -- Commands to re-create incarnation table -- Below log names MUST be changed to existing filenames on -- disk. Any one log file from each branch can be used to -- re-create incarnation records. -- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/fast_recovery_area/NODE00/archivelog/2017_03_09/o1_mf_1_1_%u_.arc'; -- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/fast_recovery_area/NODE00/archivelog/2017_03_09/o1_mf_1_1_%u_.arc'; -- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/fast_recovery_area/NODE00/archivelog/2017_03_09/o1_mf_1_1_%u_.arc'; -- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/fast_recovery_area/NODE00/archivelog/2017_03_09/o1_mf_1_1_%u_.arc'; -- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/fast_recovery_area/NODE00/archivelog/2017_03_09/o1_mf_1_1_%u_.arc'; -- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/fast_recovery_area/NODE00/archivelog/2017_03_09/o1_mf_1_1_%u_.arc'; -- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/fast_recovery_area/NODE00/archivelog/2017_03_09/o1_mf_1_1_%u_.arc'; -- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/fast_recovery_area/NODE00/archivelog/2017_03_09/o1_mf_1_1_%u_.arc'; -- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/fast_recovery_area/NODE00/archivelog/2017_03_09/o1_mf_1_1_%u_.arc'; -- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/fast_recovery_area/NODE00/archivelog/2017_03_09/o1_mf_1_1_%u_.arc'; -- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/fast_recovery_area/NODE00/archivelog/2017_03_09/o1_mf_1_1_%u_.arc'; -- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/fast_recovery_area/NODE00/archivelog/2017_03_09/o1_mf_1_1_%u_.arc'; -- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/fast_recovery_area/NODE00/archivelog/2017_03_09/o1_mf_1_1_%u_.arc'; -- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/fast_recovery_area/NODE00/archivelog/2017_03_09/o1_mf_1_1_%u_.arc'; -- Recovery is required if any of the datafiles are restored backups, -- or if the last shutdown was not normal or immediate. RECOVER DATABASE USING BACKUP CONTROLFILE -- Database can now be opened zeroing the online logs. ALTER DATABASE OPEN RESETLOGS; -- Commands to add tempfiles to temporary tablespaces. -- Online tempfiles have complete space information. -- Other tempfiles may require adjustment. ALTER TABLESPACE TEMP ADD TEMPFILE '/u01/app/oracle/oradata/node00/temp01.dbf' SIZE 61865984 REUSE AUTOEXTEND ON NEXT 655360 MAXSIZE 32767M; ALTER TABLESPACE TEMP001 ADD TEMPFILE '/u01/app/oracle/oradata/temp001.dbf' SIZE 209715200 REUSE AUTOEXTEND ON NEXT 33554432 MAXSIZE 2048M; -- End of tempfile additions. --
由于我们这里不需要重做重做日志，所以选择第一种方法。然后根据ORCL实例的重做日志和表空间路径，写出重建控制文件的脚本。
STARTUP NOMOUNT CREATE CONTROLFILE REUSE DATABASE "ORCL" NORESETLOGS ARCHIVELOG MAXLOGFILES 16 MAXLOGMEMBERS 3 MAXDATAFILES 100 MAXINSTANCES 8 MAXLOGHISTORY 292 LOGFILE GROUP 1 '/u01/app/oracle/oradata/orcl/redo01.log' SIZE 50M , GROUP 2 '/u01/app/oracle/oradata/orcl/redo02.log' SIZE 50M , GROUP 3 '/u01/app/oracle/oradata/orcl/redo03.log' SIZE 50M DATAFILE '/u01/app/oracle/oradata/orcl/system01.dbf', '/u01/app/oracle/oradata/orcl/sysaux01.dbf', '/u01/app/oracle/oradata/orcl/undotbs01.dbf', '/u01/app/oracle/oradata/orcl/users01.dbf', '/u01/app/oracle/oradata/orcl/test01.dbf', '/u01/app/oracle/oradata/test001.dbf', '/u01/app/oracle/oradata/test1.dbf', '/u01/app/oracle/oradata/test2.dbf', CHARACTER SET AL32UTF8 ; VARIABLE RECNO NUMBER; RECOVER DATABASE ALTER SYSTEM ARCHIVE LOG ALL; ALTER DATABASE OPEN; ALTER TABLESPACE TEMP ADD TEMPFILE '/u01/app/oracle/oradata/orcl/temp01.dbf' SIZE 61865984 REUSE AUTOEXTEND ON NEXT 655360 MAXSIZE 32767M;
注意：控制文件中不包含临时表空间
四、运行脚本
[oracle@node0 orcl]$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.4.0 Production on Thu Mar 9 17:41:24 2017 Copyright (c) 1982, 2013, Oracle. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options SQL> shutdown immediate; ORA-01507: database not mounted ORACLE instance shut down. SQL> set echo on SQL> @rebuild SQL> STARTUP NOMOUNT ORACLE instance started. Total System Global Area 839282688 bytes Fixed Size 2257880 bytes Variable Size 507513896 bytes Database Buffers 327155712 bytes Redo Buffers 2355200 bytes SQL> CREATE CONTROLFILE REUSE DATABASE "ORCL" NORESETLOGS ARCHIVELOG 2 MAXLOGFILES 16 3 MAXLOGMEMBERS 3 4 MAXDATAFILES 100 5 MAXINSTANCES 8 6 MAXLOGHISTORY 292 7 LOGFILE 8 GROUP 1 '/u01/app/oracle/oradata/orcl/redo01.log' SIZE 50M , 9 GROUP 2 '/u01/app/oracle/oradata/orcl/redo02.log' SIZE 50M , 10 GROUP 3 '/u01/app/oracle/oradata/orcl/redo03.log' SIZE 50M 11 DATAFILE 12 '/u01/app/oracle/oradata/orcl/system01.dbf', 13 '/u01/app/oracle/oradata/orcl/sysaux01.dbf', 14 '/u01/app/oracle/oradata/orcl/undotbs01.dbf', 15 '/u01/app/oracle/oradata/orcl/users01.dbf', 16 '/u01/app/oracle/oradata/orcl/test01.dbf', 17 '/u01/app/oracle/oradata/test001.dbf', 18 '/u01/app/oracle/oradata/test1.dbf', 19 '/u01/app/oracle/oradata/test2.dbf', 20 CHARACTER SET AL32UTF8 21 ; CHARACTER SET AL32UTF8 * ERROR at line 20: ORA-02236: invalid file name
出错了，貌似是这里不能设置字符集（数据库版本是11.2.0.4），删除这条命令后就没有影响了。（知道具体原因的请赐教）
[oracle@node0 orcl]$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.4.0 Production on Thu Mar 9 18:29:43 2017 Copyright (c) 1982, 2013, Oracle. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options SQL> @rebuild SQL> SHUTDOWN ABORT; ORACLE instance shut down. SQL> STARTUP NOMOUNT; ORACLE instance started. Total System Global Area 839282688 bytes Fixed Size 2257880 bytes Variable Size 507513896 bytes Database Buffers 327155712 bytes Redo Buffers 2355200 bytes SQL> CREATE CONTROLFILE REUSE DATABASE "ORCL" NORESETLOGS ARCHIVELOG 2 MAXLOGFILES 16 3 MAXLOGMEMBERS 3 4 MAXDATAFILES 100 5 MAXINSTANCES 8 6 MAXLOGHISTORY 292 7 LOGFILE 8 GROUP 1 '/u01/app/oracle/oradata/orcl/redo01.log' SIZE 50M , 9 GROUP 2 '/u01/app/oracle/oradata/orcl/redo02.log' SIZE 50M , 10 GROUP 3 '/u01/app/oracle/oradata/orcl/redo03.log' SIZE 50M 11 DATAFILE 12 '/u01/app/oracle/oradata/orcl/system01.dbf', 13 '/u01/app/oracle/oradata/orcl/sysaux01.dbf', 14 '/u01/app/oracle/oradata/orcl/undotbs01.dbf', 15 '/u01/app/oracle/oradata/orcl/users01.dbf', 16 '/u01/app/oracle/oradata/orcl/test01.dbf', 17 '/u01/app/oracle/oradata/test001.dbf', 18 '/u01/app/oracle/oradata/test1.dbf', 19 '/u01/app/oracle/oradata/test2.dbf'; Control file created. SQL> VARIABLE RECNO NUMBER; SQL> RECOVER DATABASE ORA-00283: recovery session canceled due to errors ORA-00264: no recovery required SQL> ALTER SYSTEM ARCHIVE LOG ALL; System altered. SQL> ALTER DATABASE OPEN; Database altered. SQL> ALTER TABLESPACE TEMP ADD TEMPFILE '/u01/app/oracle/oradata/orcl/temp01.dbf' 2 SIZE 61865984 REUSE AUTOEXTEND ON NEXT 655360 MAXSIZE 32767M; Tablespace altered. SQL> conn test001/shuyi123 Connected.
至此，数据库恢复正常。
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最后优化一下脚本
SET ECHO ON SHUTDOWN ABORT; STARTUP NOMOUNT; CREATE CONTROLFILE REUSE DATABASE "ORCL" NORESETLOGS ARCHIVELOG MAXLOGFILES 16 MAXLOGMEMBERS 3 MAXDATAFILES 100 MAXINSTANCES 8 MAXLOGHISTORY 292 LOGFILE GROUP 1 '/u01/app/oracle/oradata/orcl/redo01.log' SIZE 50M , GROUP 2 '/u01/app/oracle/oradata/orcl/redo02.log' SIZE 50M , GROUP 3 '/u01/app/oracle/oradata/orcl/redo03.log' SIZE 50M DATAFILE '/u01/app/oracle/oradata/orcl/system01.dbf', '/u01/app/oracle/oradata/orcl/sysaux01.dbf', '/u01/app/oracle/oradata/orcl/undotbs01.dbf', '/u01/app/oracle/oradata/orcl/users01.dbf', '/u01/app/oracle/oradata/orcl/test01.dbf', '/u01/app/oracle/oradata/test001.dbf', '/u01/app/oracle/oradata/test1.dbf', '/u01/app/oracle/oradata/test2.dbf'; VARIABLE RECNO NUMBER; ALTER SYSTEM ARCHIVE LOG ALL; ALTER DATABASE OPEN; ALTER TABLESPACE TEMP ADD TEMPFILE '/u01/app/oracle/oradata/orcl/temp01.dbf' SIZE 61865984 REUSE AUTOEXTEND ON NEXT 655360 MAXSIZE 32767M;
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参考文档：http://www.eygle.com/archives/2004/10/backup_and_recreate_controlfile.html