Oracle Study之--Oracle RAC重建控制文件

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系统环境：
操作系统： AIX5.3

Cluster：  Oracle 10gR2 CRS
Oracle：   Oracle 10gR2

  在RAC环境下重建控制文件和在单实例上类似，只是有些步骤需要注意：

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[oracle@aix211 ~]$cat mkln.sh ln -s /dev/rsystem           /u01/app/oracle/oradata/prod/system01.dbf ln -s /dev/rsysaux           /u01/app/oracle/oradata/prod/sysaux01.dbf ln -s /dev/rusers            /u01/app/oracle/oradata/prod/users01.dbf ln -s /dev/rundotbs1         /u01/app/oracle/oradata/prod/undotbs01.dbf ln -s /dev/rundotbs2         /u01/app/oracle/oradata/prod/undotbs02.dbf ln -s /dev/rtemp             /u01/app/oracle/oradata/prod/temp01.dbf ln -s /dev/rcontrol1_1         /u01/app/oracle/oradata/prod/control01.ctl ln -s /dev/rcontrol2_2         /u01/app/oracle/oradata/prod/control02.ctl ln -s /dev/rcontrol3_3         /u01/app/oracle/oradata/prod/control03.ctl ln -s /dev/rredo1_1          /u01/app/oracle/oradata/prod/log11.log ln -s /dev/rredo1_2          /u01/app/oracle/oradata/prod/log12.log ln -s /dev/rredo2_1          /u01/app/oracle/oradata/prod/log21.log ln -s /dev/rredo2_2          /u01/app/oracle/oradata/prod/log22.log ln -s /dev/rindex            /u01/app/oracle/oradata/prod/index01.dbf ln -s /dev/rspfile           /u01/app/oracle/oradata/prod/spfile01 ln -s /dev/rexample          /u01/app/oracle/oradata/prod/example01.dbf

   Database存储在在RAW上。


1、首先在一个节点备份controlfile

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[oracle@aix201 ~]$sqlplus '/as sysdba' SQL*Plus: Release 10.2.0.1.0 - Production on Mon Mar 23 16:16:07 2015 Copyright (c) 1982, 2005, Oracle.  All rights reserved. Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bit Production With the Partitioning, Real Application Clusters, OLAP and Data Mining options SQL> select status from v$instance; STATUS ------------ OPEN SQL> alter database backup controlfile to trace; Database altered.

2、查看控制文件的trace备份（udump）

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CREATE CONTROLFILE REUSE DATABASE "PROD" NORESETLOGS  NOARCHIVELOG     MAXLOGFILES 192     MAXLOGMEMBERS 3     MAXDATAFILES 1024     MAXINSTANCES 32     MAXLOGHISTORY 292 LOGFILE   GROUP 1 '/u01/app/oracle/oradata/prod/log11.log'  SIZE 50M,   GROUP 2 '/u01/app/oracle/oradata/prod/log12.log'  SIZE 50M,   GROUP 3 '/u01/app/oracle/oradata/prod/log21.log'  SIZE 50M,   GROUP 4 '/u01/app/oracle/oradata/prod/log22.log'  SIZE 50M -- STANDBY LOGFILE DATAFILE   '/u01/app/oracle/oradata/prod/system01.dbf',   '/u01/app/oracle/oradata/prod/undotbs01.dbf',   '/u01/app/oracle/oradata/prod/sysaux01.dbf',   '/u01/app/oracle/oradata/prod/users01.dbf',   '/u01/app/oracle/oradata/prod/example01.dbf',   '/u01/app/oracle/oradata/prod/undotbs02.dbf' CHARACTER SET ZHS16GBK ;

3、关闭database，启动其中一个instance到弄mount

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SQL> startup nomount; ORACLE instance started. Total System Global Area  612368384 bytes Fixed Size                  2022832 bytes Variable Size             184549968 bytes Database Buffers          423624704 bytes Redo Buffers                2170880 bytes SQL> @/home/oracle/cr_ctr.sql CREATE CONTROLFILE REUSE DATABASE "PROD" NORESETLOGS  NOARCHIVELOG * ERROR at line 1: ORA-01503: CREATE CONTROLFILE failed ORA-12720: operation requires database is in EXCLUSIVE mode SQL> show parameter cluster NAME                                 TYPE        VALUE ------------------------------------ ----------- ------------------------------ cluster_database                     boolean     TRUE cluster_database_instances           integer     2 cluster_interconnects                string ---创建失败，原因是在RAC下控制文件时处于共享（share）模式，需启动到独立（exclusive）模式，才能重建；修改cluster_database 为false，然后重建

重新建立控制文件：

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SQL> alter system set cluster_database =false scope=spfile; System altered. SQL> startup nomount ORACLE instance started. Total System Global Area  612368384 bytes Fixed Size                  2022832 bytes Variable Size             184549968 bytes Database Buffers          423624704 bytes Redo Buffers                2170880 bytes SQL> show parameter cluster NAME                                 TYPE        VALUE ------------------------------------ ----------- ------------------------------ cluster_database                     boolean     FALSE cluster_database_instances           integer     1 cluster_interconnects                string SQL> @/home/oracle/cr_ctr.sql Control file created. 告警日志： alter.log: Mon Mar 23 16:41:00 2015 CREATE CONTROLFILE REUSE DATABASE "PROD" NORESETLOGS  NOARCHIVELOG     MAXLOGFILES 192     MAXLOGMEMBERS 3     MAXDATAFILES 1024     MAXINSTANCES 32     MAXLOGHISTORY 292 LOGFILE   GROUP 1 '/u01/app/oracle/oradata/prod/log11.log'  SIZE 50M,   GROUP 2 '/u01/app/oracle/oradata/prod/log12.log'  SIZE 50M,   GROUP 3 '/u01/app/oracle/oradata/prod/log21.log'  SIZE 50M,   GROUP 4 '/u01/app/oracle/oradata/prod/log22.log'  SIZE 50M -- STANDBY LOGFILE DATAFILE   '/u01/app/oracle/oradata/prod/system01.dbf',   '/u01/app/oracle/oradata/prod/undotbs01.dbf',   '/u01/app/oracle/oradata/prod/sysaux01.dbf',   '/u01/app/oracle/oradata/prod/users01.dbf',   '/u01/app/oracle/oradata/prod/example01.dbf',   '/u01/app/oracle/oradata/prod/undotbs02.dbf' CHARACTER SET ZHS16GBK Mon Mar 23 16:41:00 2015 WARNING: Default Temporary Tablespace not specified in CREATE DATABASE command Default Temporary Tablespace will be necessary for a locally managed database in future release WARNING: You are creating/reusing datafile /u01/app/oracle/oradata/prod/control01.ctl. WARNING: Oracle recommends creating new datafiles on devices with zero offset. The command "/usr/sbin/mklv -y LVname -T O -w n -s n -r n VGname NumPPs" can be used. Please contact Oracle customer support for more details. WARNING: You are creating/reusing datafile /u01/app/oracle/oradata/prod/control01.ctl. WARNING: Oracle recommends creating new datafiles on devices with zero offset. The command "/usr/sbin/mklv -y LVname -T O -w n -s n -r n VGname NumPPs" can be used. Please contact Oracle customer support for more details. WARNING: You are creating/reusing datafile /u01/app/oracle/oradata/prod/control02.ctl. WARNING: Oracle recommends creating new datafiles on devices with zero offset. The command "/usr/sbin/mklv -y LVname -T O -w n -s n -r n VGname NumPPs" can be used. Please contact Oracle customer support for more details. WARNING: You are creating/reusing datafile /u01/app/oracle/oradata/prod/control02.ctl. WARNING: Oracle recommends creating new datafiles on devices with zero offset. The command "/usr/sbin/mklv -y LVname -T O -w n -s n -r n VGname NumPPs" can be used. Please contact Oracle customer support for more details. Setting recovery target incarnation to 1 Mon Mar 23 16:41:05 2015 Successful mount of redo thread 1, with mount id 286981148 Mon Mar 23 16:41:05 2015 Completed: CREATE CONTROLFILE REUSE DATABASE "PROD" NORESETLOGS  NOARCHIVELOG     MAXLOGFILES 192     MAXLOGMEMBERS 3     MAXDATAFILES 1024     MAXINSTANCES 32     MAXLOGHISTORY 292 LOGFILE   GROUP 1 '/u01/app/oracle/oradata/prod/log11.log'  SIZE 50M,   GROUP 2 '/u01/app/oracle/oradata/prod/log12.log'  SIZE 50M,   GROUP 3 '/u01/app/oracle/oradata/prod/log21.log'  SIZE 50M,   GROUP 4 '/u01/app/oracle/oradata/prod/log22.log'  SIZE 50M -- STANDBY LOGFILE DATAFILE   '/u01/app/oracle/oradata/prod/system01.dbf',   '/u01/app/oracle/oradata/prod/undotbs01.dbf',   '/u01/app/oracle/oradata/prod/sysaux01.dbf',   '/u01/app/oracle/oradata/prod/users01.dbf',   '/u01/app/oracle/oradata/prod/example01.dbf',   '/u01/app/oracle/oradata/prod/undotbs02.dbf' CHARACTER SET ZHS16GBK

4、重建成功，启动到open

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SQL> select status from v$instance; STATUS ------------ MOUNTED SQL> alter database open; Database altered. 添加临时表空间数据文件： SQL> select name from v$tempfile; no rows selected SQL> select tablespace_name from dba_tablespaces; TABLESPACE_NAME ------------------------------ SYSTEM UNDOTBS1 SYSAUX TEMP USERS UNDOTBS2 EXAMPLE 7 rows selected. SQL> alter tablespace temp add   2  tempfile '/u01/app/oracle/oradata/prod/temp01.dbf' size 100m reuse; Tablespace altered. SQL>  select name from v$tempfile; NAME -------------------------------------------------------------------------------- /u01/app/oracle/oradata/prod/temp01.dbf

5、修改cluster_database参数，启动所有instance

1 2	SQL> alter system set cluster_database =true scope=spfile; System altered.

启动所有Instance，如果所有instance启动成功，则controlfile重建成功。