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OracleStudy之--OracleRAC重建控制文件

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Freigeben： 2016-06-07 14:55:54
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Oracle Study之--Oracle RAC重建控制文件 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： [oracle@aix211~]$catmkln.shln-s/dev/rsystem/u01/app/oracle

Oracle Study之--Oracle RAC重建控制文件

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：

[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
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Database存储在在RAW上。

1、首先在一个节点备份controlfile

[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.
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2、查看控制文件的trace备份（udump）

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
;
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3、关闭database，启动其中一个instance到弄mount

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
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重新建立控制文件：

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
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4、重建成功，启动到open

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
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5、修改cluster_database参数，启动所有instance

SQL> alter system set cluster_database =true scope=spfile;
System altered.
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启动所有Instance，如果所有instance启动成功，则controlfile重建成功。


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