使用rman复制数据库
原数据库sid orcl 复制新的数据库sid为 nylg
1.创建复制备份数据库的参数文件
在原数据库创建pfile
create pfile from spfile;
然后复制pfile参数文件
[oracle@Nagiostest dbs]$ pwd
/u01/app/oracle/product/11.2/dbs
[oracle@Nagiostest dbs]$ cp initorcl.ora initnylg.ora
修改orcl数据库名改为nylg
vi initnylg.ora 修改如下：
:%s/orcl/nylg/g
在这里注意，修改参数文件后，在最后行添加两行转换参数，指定新数据文件存放路径
db_file_name_convert = (‘/u01/app/oracle/oradata/orcl‘,‘/u01/app/oracle/oradata/nylg‘)
log_file_name_convert = (‘/u01/app/oracle/oradata/orcl‘,‘/u01/app/oracle/oradata/nylg‘)
2.创建相对应的目录，启动复制数据库的辅助实例
mkdir -p $ORACLE_BASE/admin/nylg/{a,b,c,u}dump
mkdir -p /u01/app/oracle/oradata/nylg
orapwd file=$ORACLE_HOME/dbs/orapwnylg password=yuanlei force=y
[oracle@Nagiostest ~]$ export ORACLE_SID=nylg
使用pfile启动辅助实例到nomount
startup nomount pfile=?/dbs/initnylg.ora
如下：
[oracle@Nagiostest ~]$ export ORACLE_SID=nylg
[oracle@Nagiostest ~]$ sqlplus /nolog
SQL*Plus: Release 11.2.0.1.0 Production on Wed Aug 13 10:27:25 2014
Copyright (c) 1982, 2009, Oracle. All rights reserved.
SQL> conn / as sysdba
Connected to an idle instance.
SQL> startup nomount pfile=?/dbs/initnylg.ora
ORACLE instance started.
Total System Global Area 413372416 bytes
Fixed Size 2213896 bytes
Variable Size 314574840 bytes
Database Buffers 92274688 bytes
Redo Buffers 4308992 bytes
3.在新的会话中（ORACLE_SID=orcl）对原数据库做rman全备
export ORACLE_SID=orcl
rman target /
run {
sql ‘alter system archive log current‘;
backup database format=‘/u01/rmanbak/%d_%s.dbf‘
plus archivelog format=‘/u01/rmanbak/%d_%s.arc‘;
sql ‘alter system archive log current‘;
}
4.配置复制库监听（就是本机的监听文件），服务名采用静态注册，启动监听，这步很重要
不要有错误
[oracle@Nagiostest admin]$ vim listener.ora
# listener.ora Network Configuration File: /u01/app/oracle/product/11.2/network/admin/listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /u01/app/oracle/product/11.2)
(PROGRAM = extproc)
)
(SID_DESC =
(SID_NAME = nylg)
(ORACLE_HOME = /u01/app/oracle/product/11.2)
(GLOBAL_DBNAME = NYLG)
)
)
ADR_BASE_LISTENER = /u01/app/oracle
[oracle@Nagiostest admin]$ vim tnsnames.ora
# tnsnames.ora Network Configuration File: /u01/app/oracle/product/11.2/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.
NYLG =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.210)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = nylg)
)
)
lsnrctl start
5.用rman连接到主库实例和辅助实例，运行复制命令
[oracle@Nagiostest dbs]$ rman target /
Recovery Manager: Release 11.2.0.1.0 - Production on Wed Aug 13 11:01:56 2014
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
connected to target database: ORCL (DBID=1382226447)
RMAN> connect auxiliary sys/yuanlei@nylg
connected to auxiliary database: NYLG (not mounted)
这里如果遇到
RMAN-04006: error from auxiliary database: ORA-01031: insufficient privileges
请检查你的监听配置和口令文件是否正确，一般就这两个原因（我做的时候是把监听sid大写小弄错）
然后继续
RMAN> duplicate target database to nylg;
其它配置没问题话的，这里等一会就完成了
Starting Duplicate Db at 2014/08/13 11:02:38
using target database control file instead of recovery catalog
.
.
.复制过程
.
.
contents of Memory Script:
{
Alter clone database open resetlogs;
}
executing Memory Script
database opened
Finished Duplicate Db at 2014/08/13 11:07:26
此时新的数据库已经处于open状态了！
[oracle@Nagiostest ~]$ echo $ORACLE_SID
nylg
[oracle@Nagiostest ~]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.1.0 Production on Wed Aug 13 11:08:49 2014
Copyright (c) 1982, 2009, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> select status from v$instance;
STATUS
------------
OPEN
OK!
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