一般来讲，在ASM实例和文件系统之间传输文件，可以采用dbms_transfer_file包和rman实现外，或者FTP方式，FTP方式需要XML DB支持，目前还没有学会，因而先记录下前面三种方式…
1:使用dbms_file_transfer在文件系统和asm实例间传输文件，同样适用于10g
SQL> desc dbms_file_transfer;
PROCEDURE COPY_FILE
Argument Name Type In/Out Default?
------------------------------ ----------------------- ------ --------
SOURCE_DIRECTORY_OBJECT VARCHAR2 IN
SOURCE_FILE_NAME VARCHAR2 IN
DESTINATION_DIRECTORY_OBJECT VARCHAR2 IN
DESTINATION_FILE_NAME VARCHAR2 IN
PROCEDURE GET_FILE
Argument Name Type In/Out Default?
------------------------------ ----------------------- ------ --------
SOURCE_DIRECTORY_OBJECT VARCHAR2 IN
SOURCE_FILE_NAME VARCHAR2 IN
SOURCE_DATABASE VARCHAR2 IN
DESTINATION_DIRECTORY_OBJECT VARCHAR2 IN
DESTINATION_FILE_NAME VARCHAR2 IN
PROCEDURE PUT_FILE
Argument Name Type In/Out Default?
------------------------------ ----------------------- ------ --------
SOURCE_DIRECTORY_OBJECT VARCHAR2 IN
SOURCE_FILE_NAME VARCHAR2 IN
DESTINATION_DIRECTORY_OBJECT VARCHAR2 IN
DESTINATION_FILE_NAME VARCHAR2 IN
DESTINATION_DATABASE VARCHAR2 IN
SQL> select file_name from dba_data_files;
FILE_NAME
--------------------------------------------
+DATA/ogg1/datafile/users.259.773712985
+DATA/ogg1/datafile/undotbs1.258.773712985
+DATA/ogg1/datafile/sysaux.257.773712985
+DATA/ogg1/datafile/system.256.773712985
+DATA/ogg1/datafile/example.265.773713189
SQL> create user transfer_test default tablespace transfer_test identified by 123456 account unlock;
User created.
SQL> create tablespace transfer_test datafile '/u01/app/oracle/oradata/ogg1/transfer_test01.dbf' size 100M;
Tablespace created.
SQL> create directory asm_dir as '+DATA/ogg1/datafile';
Directory created.
SQL> create directory file_dir as '/u01/app/oracle/oradata/ogg1';
Directory created.
SQL> grant connect,resource to transfer_test;
Grant succeeded.
SQL> create table transfer_test.t1 as select * from dba_source;
Table created.
SQL> analyze table transfer_test.t1 compute statistics;
Table analyzed.
SQL> select count(*) from transfer_test.t1;
COUNT(*)
----------
633054
SQL> alter tablespace transfer_test offline;
Tablespace altered.
SQL> begin
2 dbms_file_transfer.copy_file('file_dir','transfer_test01.dbf','asm_dir','transfer_test01.dbf');
3 end;
4 /
PL/SQL procedure successfully completed.
[root@oel1 ~]# su - grid
[grid@oel1 ~]$ asmcmd
ASMCMD> cd +data/ogg1/datafile
ASMCMD> ls -l
Type Redund Striped Time Sys Name
DATAFILE UNPROT COARSE MAR 01 20:00:00 Y COPY_FILE.267.776809311
DATAFILE UNPROT COARSE MAR 01 20:00:00 Y EXAMPLE.265.773713189
DATAFILE UNPROT COARSE MAR 01 20:00:00 Y SYSAUX.257.773712985
DATAFILE UNPROT COARSE MAR 01 20:00:00 Y SYSTEM.256.773712985
DATAFILE UNPROT COARSE MAR 01 20:00:00 Y UNDOTBS1.258.773712985
DATAFILE UNPROT COARSE MAR 01 20:00:00 Y USERS.259.773712985
N transfer_test01.dbf =>
+DATA/OGG1/DATAFILE/COPY_FILE.267.776809311
SQL> alter database rename file '/u01/app/oracle/oradata/ogg1/transfer_test01.dbf' to
'+data/ogg1/datafile/transfer_test01.dbf';
Database altered.
SQL> alter tablespace transfer_test online;
Tablespace altered.
QL> select file_name from dba_data_files;
FILE_NAME
--------------------------------------------------------------------------------
+DATA/ogg1/datafile/users.259.773712985
+DATA/ogg1/datafile/undotbs1.258.773712985
+DATA/ogg1/datafile/sysaux.257.773712985
+DATA/ogg1/datafile/system.256.773712985
+DATA/ogg1/datafile/example.265.773713189
+DATA/ogg1/datafile/transfer_test01.dbf
6 rows selected.
SQL> select count(*) from transfer_test.t1;
COUNT(*)
----------
633054
2: 11g的asm实例可以直接使用cp命令来实现，从asm实例的cp帮助信息上看，已经可以直接从本地数据库直接cp到远端数据库了！
ASMCMD> cp /u01/app/oracle/oradata/ogg1/transfer_test01.dbf +data/ogg1/datafile/test01.dbf
copying /u01/app/oracle/oradata/ogg1/transfer_test01.dbf -> +data/ogg1/datafile/test01.dbf
ASMCMD> pwd
+data/ogg1/datafile
ASMCMD> ls -l
Type Redund Striped Time Sys Name
DATAFILE UNPROT COARSE MAR 01 20:00:00 Y COPY_FILE.267.776809311
DATAFILE UNPROT COARSE MAR 01 20:00:00 Y EXAMPLE.265.773713189
DATAFILE UNPROT COARSE MAR 01 20:00:00 Y SYSAUX.257.773712985
DATAFILE UNPROT COARSE MAR 01 20:00:00 Y SYSTEM.256.773712985
DATAFILE UNPROT COARSE MAR 01 20:00:00 Y UNDOTBS1.258.773712985
DATAFILE UNPROT COARSE MAR 01 20:00:00 Y USERS.259.773712985
N test01.dbf => +DATA/ASM/DATAFILE/test01.dbf.268.776809913
N transfer_test01.dbf =>
+DATA/OGG1/DATAFILE/COPY_FILE.267.776809311
3:使用rman的convert命令来实现，同样适用于10g
[oracle@oel1 ~]$ rman target /
Recovery Manager: Release 11.2.0.3.0 - Production on Thu Mar 1 20:44:22 2012
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
connected to target database: OGG1 (DBID=3952830770)
RMAN> convert datafile '+data/ogg1/datafile/SYSTEM.256.773712985' format
'/u01/app/oracle/oradata/ogg1/system01.dbf';
Starting conversion at target at 2012-03-01-20:47:08
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile conversion
input file name=+DATA/ogg1/datafile/system.256.773712985
converted datafile=/u01/app/oracle/oradata/ogg1/system01.dbf
channel ORA_DISK_1: datafile conversion complete, elapsed time: 00:01:56
Finished conversion at target at 2012-03-01-20:49:07
RMAN> host "ls -lh /u01/app/oracle/oradata/ogg1/";
total 821M
-rw-r----- 1 oracle asmadmin 721M Mar 1 20:49 system01.dbf
-rw-r----- 1 oracle asmadmin 101M Mar 1 20:17 transfer_test01.dbf
host command complete
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