1.在auxiliary 服务器上安装oracle 软件，（不要创建数据库）

2.从target 数据库上得到pfile ,拷贝到auxiliary 相对应的位置，（修改想应的参数）

3.auxiliary服务器：根据pfile 和需要创建相应的目录。

4.创建网络配制文件listener.ora　sqlnet.ora  tnsnames.ora　使能连上target 数据库

5.备份target 数据库，并且与archive log 一起　拷贝到auxiliary 服务器上相同的目录

6.设置sys密码文体：

orapwd file=/u01/oracle/product/10.2.0/db_1/dbs/orapwhanmi password=hanmihanmi  entries=4

7.auxiliary服务器启动到nomount 状态。

8.连接两个数据库，clone数据库：

[oracle@oracle ~]$ rman target sys/nnnt@test auxiliary sys/aaa

rman> run{

allocate channel chan1 type disk;

allocate channel chan2 type disk;

ALLOCATE AUXILIARY CHANNEL aux1 DEVICE TYPE DISK;

ALLOCATE AUXILIARY CHANNEL aux2 DEVICE TYPE DISK;

DUPLICATE TARGET DATABASE TO dupdb

# specify client-side parameter file (on same host as RMAN client) for

# auxiliary instance if necessary

PFILE = /dup/oracle/dbs/initDUPDB.ora

NOFILENAMECHECK;   (目录结构相同)

}

目录结构不同用下面的脚本：

RUN

{

# set new filenames for the datafiles

allocate channel chan1 type disk;

allocate channel chan2 type disk;

ALLOCATE AUXILIARY CHANNEL aux1 DEVICE TYPE DISK;

ALLOCATE AUXILIARY CHANNEL aux2 DEVICE TYPE DISK;

set newname for datafile 1 to '/u01/oracle/oradata/hanmi/system01.dbf';

set newname for datafile 2 to '/u01/oracle/oradata/hanmi/undotbs01.dbf';

set newname for datafile 3 to '/u01/oracle/oradata/hanmi/sysaux01.dbf';

set newname for datafile 4 to '/u01/oracle/oradata/hanmi/users01.dbf';

duplicate target DATABASE TO hanmi LOGFILE

'/u01/oracle/oradata/redo01' size 200m,

'/u01/oracle/oradata/redo02' size 200m,

'/u01/oracle/oradata/redo03' size 200m;

}