asm数据文件迁移(os–>asm)

--添加测试表空间

SQL> create tablespace xff datafile '/u01/oradata/xifenfei.dbf' size 10m autoextend on maxsize 100m;

 

Tablespace created.

 

--查看数据文件位置

SQL> select name from v$datafile;

 

NAME

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

+DATA/tasm/system01.dbf

+DATA/tasm/undotbs01.dbf

+DATA/tasm/sysaux01.dbf

+DATA/tasm/users01.dbf

+DATA/tasm/example01.dbf

/u01/oradata/xifenfei.dbf

 

6 rows selected.

 

--创建测试表

SQL> create table hr.a tablespace xff

  2  as

  3  select * from dba_tables;

 

Table created.

 

SQL> select count(*) from hr.a;

 

  COUNT(*)

----------

      1580

--转移数据文件位置

[oracle@localhost oradata]$ rman target /

 

Recovery Manager: Release 10.2.0.3.0 - Production on Mon Jun 27 04:30:22 2011

 

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

 

connected to target database: TASM (DBID=3032096031)

 

RMAN> sql 'alter tablespace xff offline';

 

using target database control file instead of recovery catalog

sql statement: alter tablespace xff offline

 

RMAN> backup as copy tablespace xff format '+DATA';

 

Starting backup at 27-JUN-11

allocated channel: ORA_DISK_1

channel ORA_DISK_1: sid=132 devtype=DISK

channel ORA_DISK_1: starting datafile copy

input datafile fno=00006 name=/u01/oradata/xifenfei.dbf

output filename=+DATA/tasm/datafile/xff.269.754893121 tag=TAG20110627T043200 recid=2 stamp=754893123

channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:03

Finished backup at 27-JUN-11

 

RMAN> switch tablespace xff to copy;

 

datafile 6 switched to datafile copy "+DATA/tasm/datafile/xff.269.754893121"

 

RMAN> sql 'alter tablespace xff online';

 

sql statement: alter tablespace xff online

 

--查看转移后的数据文件位置

SQL> select name from v$datafile;

 

NAME

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

+DATA/tasm/system01.dbf

+DATA/tasm/undotbs01.dbf

+DATA/tasm/sysaux01.dbf

+DATA/tasm/users01.dbf

+DATA/tasm/example01.dbf

+DATA/tasm/datafile/xff.269.754893121

 

6 rows selected.

 

--测试其中数据是否存在

SQL> select count(*) from hr.a;

 

  COUNT(*)

----------

      1580

 

--创建asm中文件别名

ASMCMD> mkalias  +DATA/tasm/datafile/xff.269.754893121 +DATA/tasm/xff01.dbf

 

--文件重命名

SQL> alter tablespace xff offline;

 

Tablespace altered.

 

SQL> alter database rename file '+DATA/tasm/datafile/xff.269.754893121' to '+DATA/tasm/xff01.dbf';

 

Database altered.

 

SQL> alter tablespace xff online;

 

Tablespace altered.

 

SQL> select name from v$datafile;

 

NAME

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

+DATA/tasm/system01.dbf

+DATA/tasm/undotbs01.dbf

+DATA/tasm/sysaux01.dbf

+DATA/tasm/users01.dbf

+DATA/tasm/example01.dbf

+DATA/tasm/xff01.dbf

 

6 rows selected.

 

--手工删除原来数据

[oracle@localhost oradata]$ rm xifenfei.dbf

说明：可以在rman移植数据文件位置的时候，同时处理好别名，然后对表空间重命名，实现只需要表空间离线一次

转:http://www.xifenfei.com/2011/08/%e9%9d%9easm%e6%95%b0%e6%8d%ae%e6%96%87%e4%bb%b6%e7%a7%bb%e6%a4%8d%e5%88%b0asm.html