ORACLE 11gR2 RAC添加控制文件

版本

SQL> select * from v$version;

BANNER
--------------------------------------------------------------------------------
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
PL/SQL Release 11.2.0.4.0 - Production
CORE    11.2.0.4.0  Production
TNS for Linux: Version 11.2.0.4.0 - Production
NLSRTL Version 11.2.0.4.0 - Production


SQL> show parameter cluster;

NAME                     TYPE    VALUE
------------------------------------ ----------- ------------------------------
cluster_database             boolean     TRUE
cluster_database_instances       integer     2
cluster_interconnects            string

11.2.0.4部署在centos6.5的2节点oracle rac。默认情况下，数据库仅有一组control file文件，需要添加一组，保证一组文件损坏或者丢失导致数据库宕机。

SQL> show parameter control;

NAME                     TYPE    VALUE
------------------------------------ ----------- ------------------------------
control_file_record_keep_time        integer     30
control_files                string  +CRS/orcl/controlfile/current.
                         260.931276463
control_management_pack_access       string  DIAGNOSTIC+TUNING

操作

---

1、关闭两个节点

[grid@db-foc-node01 oracle]$ srvctl stop database -d orcl

2、在其中一个节点上启动rman

[oracle@db-foc-node01 ~]$ rman target /

Recovery Manager: Release 11.2.0.4.0 - Production on Tue Dec 27 16:59:10 2016

Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.

connected to target database (not started)

3、将数据库启动到nomount状态下

RMAN> startup nomount;

Oracle instance started

Total System Global Area    4275781632 bytes

Fixed Size                     2260088 bytes
Variable Size                989856648 bytes
Database Buffers            3271557120 bytes
Redo Buffers                  12107776 bytes

4、采用restore拷贝一份controlfile到新路径

RMAN> restore controlfile to '+DATA/ORCL/CONTROLFILE/Current.261.931276464' from '+CRS/ORCL/CONTROLFILE/Current.260.931276463';

Starting restore at 27-DEC-16
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=50 instance=orcl1 device type=DISK

channel ORA_DISK_1: copied control file copy
Finished restore at 27-DEC-16

注：’+DATA/ORCL/CONTROLFILE/Current.261.931276464’是拷贝的新的控制文件，如果asm自动管理的，可能名字不会按照你的命名，需要确定下新的文件名字。

ASMCMD> pwd
+DATA/ORCL/CONTROLFILE
ASMCMD> ls
current.299.931771447

果然不一样。
5、修改spfile文件

SQL> show parameter spfile;

NAME                     TYPE    VALUE
------------------------------------ ----------- ------------------------------
spfile                   string  +CRS/orcl/spfileorcl.ora

SQL> shutdown immediate;
ORA-01507: database not mounted


ORACLE instance shut down.
SQL> create pfile='/oracle/init.ora' from spfile='+CRS/orcl/spfileorcl.ora';

File created.

vi /oracle/init.ora
--修改
*.control_files='+CRS/orcl/controlfile/current.260.931276463','+DATA/ORCL/CONTROLFILE/current.299.931771447'

SQL> create spfile='+CRS/orcl/spfileorcl.ora' from pfile='/oracle/init.ora';

File created.

6、启动数据库

[grid@db-foc-node01 oracle]$ srvctl start database -d orcl

7、验证

SQL> show parameter control;

NAME                     TYPE    VALUE
------------------------------------ ----------- ------------------------------
control_file_record_keep_time        integer     30
control_files                string  +CRS/orcl/controlfile/current.
                         260.931276463, +DATA/orcl/cont
                         rolfile/current.299.931771447
control_management_pack_access       string  DIAGNOSTIC+TUNING