——————————————————————————————————–

# 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

—————————————