rman的conver方法拷贝ASM文件

rman中的conver命令主要用户跨平台传输表空间，也可以完成从ASM何本地文件系统中拷贝文件，比用dbms_file_transfer方法要简单

从ASM拷贝到文件系统：

拷贝表空间

在拷贝表空间的时候，必须首先将表空间设置为只读，否则会出错，如下：

RMAN> convert tablespace kel format '/home/oracle/kel1_%U.dbf';

Starting backup at 10-JUL-14
using channel ORA_DISK_1
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of backup command at 07/10/2014 23:45:00
RMAN-06599: tablespace KEL is not read-only

将表空间设置为只读：

SQL> alter tablespace kel read only;

Tablespace altered.

拷贝表空间：

RMAN> convert tablespace kel format '/home/oracle/kel1_%U.dbf';

Starting backup at 10-JUL-14
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile conversion
input datafile fno=00005 name=+RECOVER/omf/datafile/kel.dbf
converted datafile=/home/oracle/kel1_data_D-OMF_I-680034237_TS-KEL_FNO-5_05pd33mi.dbf
channel ORA_DISK_1: datafile conversion complete, elapsed time: 00:00:25
Finished backup at 10-JUL-14

拷贝数据文件

拷贝数据文件的文件的时候，直接进行拷贝即可：

RMAN> convert datafile '+recover/omf/datafile/CONVERT.274.852579119' format '/home/oracle/con_%U.dbf';

Starting backup at 10-JUL-14
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile conversion
input filename=+RECOVER/omf/datafile/convert.274.852579119
converted datafile=/home/oracle/con_data_D-OMF_I-680034237_TS-CONVERT_FNO-6_06pd33s7.dbf
channel ORA_DISK_1: datafile conversion complete, elapsed time: 00:00:16
Finished backup at 10-JUL-14

从文件系统拷贝到ASM中

RMAN> convert datafile '/home/oracle/kel.dbf' format '+recover';

Starting backup at 10-JUL-14
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile conversion
input filename=/home/oracle/kel.dbf
converted datafile=+RECOVER/omf/datafile/kel.276.852594751
channel ORA_DISK_1: datafile conversion complete, elapsed time: 00:00:25
Finished backup at 10-JUL-14

在从文件系统拷贝到ASM之后，可以将数据文件先offline

SQL> alter database datafile '+RECOVER/omf/datafile/kel.dbf' offline;

Database altered.

然后将数据库文件进行更名

SQL> alter database rename file '+RECOVER/omf/datafile/kel.dbf' to '+RECOVER/omf/datafile/KEL.276.852594751';

Database altered.

在online的时候报错：

SQL> alter database datafile '+RECOVER/omf/datafile/KEL.276.852594751' online;
alter database datafile '+RECOVER/omf/datafile/KEL.276.852594751' online
*
ERROR at line 1:
ORA-01113: file 5 needs media recovery
ORA-01110: data file 5: '+RECOVER/omf/datafile/kel.276.852594751'

对数据文件进行恢复;

RMAN> recover datafile 5;

Starting recover at 11-JUL-14
using channel ORA_DISK_1

starting media recovery
media recovery complete, elapsed time: 00:00:05

Finished recover at 11-JUL-14

然后将数据文件online：

SQL> alter database datafile '+RECOVER/omf/datafile/KEL.276.852594751' online;

Database altered.