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Oracle RAC 更改instance name完整步骤

WBOY
WBOYOriginal
2016-06-07 17:27:141375browse

单实例的数据库修改SID比较简单,只需要修改pfile相关参数,就可以挂载数据库。 RAC环境其实一样,只不过除了修改pfile,还需要修

下面是更改的部分步骤,但是启动问题还是存在,求达人完整。

单实例的数据库修改SID比较简单,,只需要修改pfile相关参数,就可以挂载数据库。 RAC环境其实一样,只不过除了修改pfile,还需要修改 OCR信息。

首先来看看RAC的状态:
[root@rac1 tmp]# /u01/app/crs/bin/crs_stat -t
Name          Type          Target    State    Host       
------------------------------------------------------------
ora.orcl.db    application    ONLINE    ONLINE    rac1       
ora....l1.inst application    ONLINE    ONLINE    rac1       
ora....l2.inst application    ONLINE    ONLINE    rac2       
ora....SM1.asm application    ONLINE    ONLINE    rac1       
ora....C1.lsnr application    ONLINE    ONLINE    rac1       
ora.rac1.gsd  application    ONLINE    ONLINE    rac1       
ora.rac1.ons  application    ONLINE    ONLINE    rac1       
ora.rac1.vip  application    ONLINE    ONLINE    rac1       
ora....SM2.asm application    ONLINE    ONLINE    rac2       
ora....C2.lsnr application    ONLINE    ONLINE    rac2       
ora.rac2.gsd  application    ONLINE    ONLINE    rac2       
ora.rac2.ons  application    ONLINE    ONLINE    rac2       
ora.rac2.vip  application    ONLINE    ONLINE    rac2

现在RAC状态一切正常,所有服务已经启动。下面来试下如何修改2台RAC机器的SID,分别修改为:orcl3, orcl4

1.        创建pfile,然后把orcl1--->orcl3  orcl2--->orcl4,并传输给另外一个节点,其他参数不任何变更
SQL> conn /as sysdba
Connected.
SQL> create pfile='/tmp/pfile' from spfile;

File created.

[Oracle@rac1 companion]$ scp /tmp/pfile  192.168.18.9:/tmp
pfile                                                            100% 1290    1.3KB/s  00:00

[oracle@rac1 companion]$ cat /tmp/pfile
orcl4.__db_cache_size=75497472
orcl3.__db_cache_size=58720256
orcl3.__java_pool_size=4194304
orcl4.__java_pool_size=4194304
orcl3.__large_pool_size=4194304
orcl4.__large_pool_size=4194304
orcl4.__shared_pool_size=79691776
orcl3.__shared_pool_size=96468992
orcl3.__streams_pool_size=0
orcl4.__streams_pool_size=0
*.audit_file_dest='/u01/app/oracle/admin/orcl/adump'
*.background_dump_dest='/u01/app/oracle/admin/orcl/bdump'
*.cluster_database_instances=2
*.cluster_database=true
*.compatible='10.2.0.1.0'
*.control_files='+DATA1/orcl/controlfile/current.260.696461787'
*.core_dump_dest='/u01/app/oracle/admin/orcl/cdump'
*.db_block_size=8192
*.db_create_file_dest='+DATA1'
*.db_domain='oracle.com'
*.db_file_multiblock_read_count=16
*.db_name='orcl'
*.dispatchers='(PROTOCOL=TCP) (SERVICE=orclXDB)'
orcl4.instance_number=2
orcl3.instance_number=1
*.job_queue_processes=10
*.log_archive_dest_1='LOCATION=+DATA1/orcl/'
*.log_archive_format='%t_%s_%r.dbf'
*.open_cursors=300
*.pga_aggregate_target=16777216
*.processes=150
*.remote_listener='LISTENERS_ORCL'
*.remote_login_passwordfile='exclusive'
*.sga_target=167772160
orcl4.thread=2
orcl3.thread=1
*.undo_management='AUTO'
orcl3.undo_tablespace='UNDOTBS1'
orcl4.undo_tablespace='UNDOTBS2'
*.user_dump_dest='/u01/app/oracle/admin/orcl/udump'

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