« Oracle HowTo:如何Shrink Undo表空间,释放过度占用的空间 | Blog首页 | 我的DBA飞走了 »
Oracle HowTo:如何通过RMAN进行裸设备和文件系统之间的数据文件迁移
作者：eygle | 【转载请注出处】|【云和恩墨 领先的zData数据库一体机 | zCloud PaaS云管平台 | SQM SQL审核平台 | ZDBM 数据库备份一体机】
链接：https://www.eygle.com/archives/2005/12/oracle_howto_move_datafile_raw.html
因为一个朋友问起，做个范例简单介绍如何使用Rman进行数据文件的裸设备和文件系统转换。链接：https://www.eygle.com/archives/2005/12/oracle_howto_move_datafile_raw.html
1.使用裸设备建立EYGLE测试表空间
[oracle@danaly ~]$ sqlplus "/ as sysdba"
SQL*Plus: Release 10.2.0.1.0 - Production on Wed Nov 30 14:41:53 2005
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, Oracle Label Security, OLAP and Data Mining Scoring Engine options
SQL> create tablespace eygle
2 datafile '/dev/cciss/c0d0p11' size 10M;
Tablespace created.
SQL> create table eygle tablespace eygle as select * from dba_objects;
Table created.
SQL> select count(*) from eygle;
COUNT(*)
----------
50420
SQL> alter tablespace eygle offline;
Tablespace altered.
SQL> exit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, Oracle Label Security, OLAP and Data Mining Scoring Engine options
|
2.使用RMAN的COPY功能备份裸设备文件为文件系统文件
[oracle@danaly ~]$ rman target / Recovery Manager: Release 10.2.0.1.0 - Production on Wed Nov 30 16:00:42 2005 Copyright (c) 1982, 2005, Oracle. All rights reserved. connected to target database: DANALY (DBID=3965153484) RMAN> copy datafile '/dev/cciss/c0d0p11' to '/opt/oracle/eygle01.dbf'; Starting backup at 30-NOV-05 using target database control file instead of recovery catalog allocated channel: ORA_DISK_1 channel ORA_DISK_1: sid=137 devtype=DISK channel ORA_DISK_1: starting datafile copy input datafile fno=00002 name=/dev/cciss/c0d0p11 output filename=/opt/oracle/eygle01.dbf tag=TAG20051130T160137 recid=2 stamp=575740898 channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:02 Finished backup at 30-NOV-05 RMAN> exit Recovery Manager complete. |
3.通过rename修改文件位置
[oracle@danaly ~]$ sqlplus "/ as sysdba" SQL*Plus: Release 10.2.0.1.0 - Production on Wed Nov 30 16:01:54 2005 Copyright (c) 1982, 2005, Oracle. All rights reserved. Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production With the Partitioning, Oracle Label Security, OLAP and Data Mining Scoring Engine options SQL> alter database rename file '/dev/cciss/c0d0p11' to '/opt/oracle/eygle01.dbf'; Database altered. SQL> alter tablespace eygle online; Tablespace altered. SQL> select file_name from dba_data_files where tablespace_name='EYGLE'; FILE_NAME -------------------------------------------------------------------------------- /opt/oracle/eygle01.dbf |
4.进行数据修改
SQL> insert into eygle as select * from eygle;
insert into eygle as select * from eygle
*
ERROR at line 1:
ORA-00926: missing VALUES keyword
SQL> insert into eygle select * from eygle;
insert into eygle select * from eygle
*
ERROR at line 1:
ORA-01653: unable to extend table SYS.EYGLE by 128 in tablespace EYGLE
SQL> alter database datafile '/opt/oracle/eygle01.dbf' resize 20m;
Database altered.
SQL> insert into eygle select * from eygle;
50420 rows created.
SQL> commit;
Commit complete.
SQL> alter tablespace eygle offline;
Tablespace altered.
SQL> exit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, Oracle Label Security, OLAP and Data Mining Scoring Engine options
|
5.从文件系统迁移文件至裸设备
rman使得对于裸设备的操作大大简化。
历史上的今天...
>> 2016-12-01文章:
>> 2011-12-01文章:
>> 2009-12-01文章:
>> 2008-12-01文章:
>> 2007-12-01文章:
>> 2006-12-01文章:
[oracle@danaly ~]$ rman target /
Recovery Manager: Release 10.2.0.1.0 - Production on Wed Nov 30 16:08:51 2005
Copyright (c) 1982, 2005, Oracle. All rights reserved.
connected to target database: DANALY (DBID=3965153484)
RMAN> copy datafile '/opt/oracle/eygle01.dbf' to '/dev/cciss/c0d0p11';
Starting backup at 30-NOV-05
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=135 devtype=DISK
channel ORA_DISK_1: starting datafile copy
input datafile fno=00002 name=/opt/oracle/eygle01.dbf
output filename=/dev/cciss/c0d0p11 tag=TAG20051130T160935 recid=3 stamp=575741376
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:01
Finished backup at 30-NOV-05
RMAN> exit
Recovery Manager complete.
[oracle@danaly ~]$ sqlplus "/ as sysdba"
SQL*Plus: Release 10.2.0.1.0 - Production on Wed Nov 30 16:09:48 2005
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, Oracle Label Security, OLAP and Data Mining Scoring Engine options
SQL> alter database rename file '/opt/oracle/eygle01.dbf' to '/dev/cciss/c0d0p11';
Database altered.
SQL> alter tablespace eygle online;
Tablespace altered.
SQL> select count(*) from eygle;
COUNT(*)
----------
100840
SQL>
|
rman使得对于裸设备的操作大大简化。
历史上的今天...
>> 2016-12-01文章:
>> 2011-12-01文章:
>> 2009-12-01文章:
>> 2008-12-01文章:
>> 2007-12-01文章:
>> 2006-12-01文章:
By eygle on 2005-12-01 07:01 | Comments (3) | HowTo | 553 |
真是太酷了，以前没用过RAW DEVICE，RMAN功能真神奇
看过eygle的不少文章，比较注重操作步骤，缺少综合性的方法概述
表空间不需要offline，copy完直接offline 数据文件 做recover就可以了。这样可以在线做。