--------------------------------------------------------------------------------------------------------

创新互联主打移动网站、网站设计制作、网站设计、网站改版、网络推广、网站维护、域名申请、等互联网信息服务，为各行业提供服务。在技术实力的保障下，我们为客户承诺稳定，放心的服务，根据网站的内容与功能再决定采用什么样的设计。最后，要实现符合网站需求的内容、功能与设计，我们还会规划稳定安全的技术方案做保障。

# 1. 生成数据文件重命名脚本

--------------------------------------------------------------------------------------------------------

---------------------------------------

--1.1 日志文件路径替换

---------------------------------------

SQL > select 'ALTER DATABASE RENAME FILE '''||MEMBER||''' TO '''||REPLACE(MEMBER,'+ARCH_DG','+helloWorldARCH')||'''; ' FROM v$logfile where member like '%ARCH_DG%';

ALTER DATABASE RENAME FILE '+ARCH_DG/helloWorlddb/onlinelog/group_1.257.946749259' TO '+helloWorldARCH/helloWorlddb/onlinelog/group_1.257.946749259';

......

---------------------------------------

--1.2 日志文件路径替换

---------------------------------------

SQL > select 'ALTER DATABASE RENAME FILE '''||MEMBER||''' TO '''||REPLACE(MEMBER,'+DATA01_DG','+helloWorldDATA1')||'''; ' FROM v$logfile where member like '%DATA01_DG%';

ALTER DATABASE RENAME FILE '+DATA01_DG/helloWorlddb/onlinelog/group_1.257.946749257' TO '+helloWorldDATA1/helloWorlddb/onlinelog/group_1.257.946749257';

......

---------------------------------------

--1.3 数据文件路径替换

---------------------------------------

SQL > select 'ALTER DATABASE RENAME FILE '''||NAME||''' TO '''||REPLACE(NAME,'+DATA01_DG','+helloWorldDATA1')||'''; ' FROM v$datafile;

ALTER DATABASE RENAME FILE '+DATA01_DG/helloWorlddb/datafile/system.267.946748147' TO '+helloWorldDATA1/helloWorlddb/datafile/system.267.946748147';

......

---------------------------------------

--1.4 临时文件路径替换

---------------------------------------

SQL > select 'ALTER DATABASE RENAME FILE '''||NAME||''' TO '''||REPLACE(NAME,'+DATA01_DG','+helloWorldDATA1')||'''; ' FROM v$tempfile;

ALTER DATABASE RENAME FILE '+DATA01_DG/helloWorlddb/tempfile/temp.264.946748289' TO '+helloWorldDATA1/helloWorlddb/tempfile/temp.264.946748289';

......

---------------------------------------

--1.5 备份参数文件

---------------------------------------

SQL> create pfile='/home/oracle/helloWorld.pfile' from spfile;

--------------------------------------------------------------------------------------------------------

# 2. 停数据库

--------------------------------------------------------------------------------------------------------

oracle@helloWorlddb1:[/home/oracle]srvctl config database -d helloWorlddb

oracle@helloWorlddb1:[/home/oracle]srvctl stop database -d helloWorlddb

--------------------------------------------------------------------------------------------------------

# 3. 重命名DG (grid用户操作)

--------------------------------------------------------------------------------------------------------

---------------------------------------

--3.1 查看DG信息

---------------------------------------

grid@helloWorlddb1:[/home/grid]kfod a='/dev/rdisk/*' disks=all ds=true o=all 

grid@helloWorlddb1:[/home/grid]crsctl stat res -t

---------------------------------------

--3.2 删除旧DG信息

---------------------------------------

grid@helloWorlddb1:[/home/grid]srvctl stop diskgroup -g ARCH_DG -n helloWorlddb1,helloWorlddb2  

grid@helloWorlddb1:[/home/grid]srvctl stop diskgroup -g DATA01_DG -n helloWorlddb1,helloWorlddb2  

grid@helloWorlddb1:[/home/grid]srvctl remove diskgroup -g ARCH_DG -f

grid@helloWorlddb1:[/home/grid]srvctl remove diskgroup -g DATA01_DG -f

---------------------------------------

--3.3 重命名DG

---------------------------------------

grid@helloWorlddb1:[/home/grid]renamedg dgname=DATA01_DG newdgname=helloWorldDATA1 asm_diskstring='/dev/rdisk/disk*' verbose=true

grid@helloWorlddb1:[/home/grid]renamedg dgname=ARCH_DG newdgname=helloWorldARCH asm_diskstring='/dev/rdisk/disk*' verbose=true

---------------------------------------

--3.4 查看新DG信息

---------------------------------------

grid@helloWorlddb1:[/home/grid]kfod a='/dev/rdisk/*' disks=all ds=true o=all 

---------------------------------------

--3.5 挂载新DG

---------------------------------------

grid@helloWorlddb1:[/home/grid]sqlplus / as sysasm

SQL> alter diskgroup helloWorldDATA1 mount;

SQL> alter diskgroup helloWorldARCH mount;

---------------------------------------

--3.6 检查ASM实例中参数信息

---------------------------------------

SQL> show parameter asm_diskgroups;

--如果有需要，手工调整参数所对应的磁盘组信息

SQL> alter system set asm_diskgroups=helloWorldDATA1,helloWorldARCH sid='+ASM1';

SQL> alter system set asm_diskgroups=helloWorldDATA1,helloWorldARCH sid='+ASM2';

---------------------------------------

--3.7 检查crs资源信息

---------------------------------------

grid@helloWorlddb1:[/home/grid]crsctl stat res -t

--------------------------------------------------------------------------------------------------------

# 4. 修改数据库相关DG路径 (oracle用户)

--------------------------------------------------------------------------------------------------------

---------------------------------------

--4.1 修改数据库参数文件路径 (两个节点)

---------------------------------------

oracle@helloWorlddb1:[/home/oracle]cd $ORACLE_HOME/dbs

oracle@helloWorlddb1:[/oracle/app/oracle/11.2.0.4/db_1/dbs]vi inithelloWorlddb1.ora

oracle@helloWorlddb2:[/oracle/app/oracle/11.2.0.4/db_1/dbs]vi inithelloWorlddb2.ora

:%s/DATA01_DG/helloWorldDATA1/g

---------------------------------------

--4.2 修改crs中记录的参数文件与DG信息

---------------------------------------

oracle@helloWorlddb1:[/home/oracle]srvctl modify database -d helloWorlddb -p +helloWorldDATA1/helloWorlddb/spfilehelloWorlddb.ora -a helloWorldDATA1,helloWorldARCH

---------------------------------------

--4.3 启动数据库到nomount状态

---------------------------------------

oracle@helloWorlddb1:[/home/oracle]sqlplus / as sysdba

SQL> startup nomount;

---------------------------------------

--4.4 修改与DG名称相关的数据库参数

---------------------------------------

oracle@helloWorlddb1:[/home/oracle]grep DATA01_DG helloWorld.pfile  

oracle@helloWorlddb1:[/home/oracle]grep ARCH_DG helloWorld.pfile

oracle@helloWorlddb1:[/home/oracle]sqlplus / as sysdba

alter system set control_files='+helloWorldDATA1/helloWorlddb/controlfile/current.265.946748283', '+helloWorldARCH/helloWorlddb/controlfile/current.256.946748283' scope=spfile;

alter system set db_create_file_dest='+helloWorldDATA1' scope=spfile;

alter system set db_create_online_log_dest_1='+helloWorldDATA1' scope=spfile;

alter system set db_create_online_log_dest_2='+helloWorldARCH' scope=spfile;

---------------------------------------

--4.5 重新启动并挂载数据库

---------------------------------------

SQL> shutdown immediate;

SQL> startup mount;

---------------------------------------

--4.6 执行步骤1中生成的数据库重命名脚本

---------------------------------------

---------------------------------------

--4.7 打开数据库

---------------------------------------

SQL> alter database open;

---------------------------------------

--4.8 重启集群进行验证

---------------------------------------

本文名称：修改RAC环境中的ASMDG名称
URL链接：http://csdahua.cn/article/jhegjg.html