Oracle11gR2使用RMAN duplicate复制数据库――active database d

11gR2的RMAN duplicate个人感觉比10g的先进了很多，10G需要在rman备份的基础上进行复制，使用RMAN duplicate创建一个数据完全相同但DBID不同的数据库。而11g的RMAN duplicate可以通过Active database duplicate和Backup-based duplicate两种方法实现。这里的测试使用的是Active database duplicate，因为Active database duplicate功能强大，不需要先把目标数据库进行rman备份，只要目标数据库处于归档模式下即可直接通过网络对数据库进行copy，且copy完成后自动open数据库。这对于大数据特别是T级别的数据库来说优点非常明显，复制前不需要进行备份，减少了备份和传送备份的时间，同时节省备份空间。下面来进行具体的duplicate操作。

应用场景：

1、旧库可以使用并且网络顺畅

实验环境：

target db：

ip 192.168.56.10

oracle_sid=mydb

oracle_version=11.2.0.3

auxiliary db：

ip 192.168.56.150

oracle_sid=oradu

1、在新库创建参数文件并启动实例到nomount状态

--auxiliary db上执行

[oracle@localhost ~]$ cat initoradu.ora

db_name=oradu

db_block_size=8192

db_file_name_convert=('/u01/app/oracle/oradata/mydb/','/u01/app/oracle/oradata/oradu/')

log_file_name_convert=('/u01/app/oracle/oradata/mydb/','/u01/app/oracle/oradata/oradu/')

--由于这里使用的是不同实例，所以必须添加db_file_name_convert和log_file_name_convert，否则在复制的时候会报错无法创建数据文件，如果是同实例名复制，且两数据目录完全一样的情况下，这两个参数可省略。

--在auxiliary db 上创建新库的数据文件在存放的目录

mkdir -p /u01/app/oracle/oradata/oradu/

[oracle@localhost ~]$ export ORACLE_SID=oradu

[oracle@localhost ~]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on Sun Mar 20 12:56:36 2016

Copyright (c) 1982,2011,Oracle. All rights reserved.

Connected to an idle instance.

SQL> startup nomount pfile=/home/oracle/initoradu.ora

ORACLE instance started.

Total System Global Area 238034944 bytes

Fixed Size 2227136 bytes

Variable Size 180356160 bytes

Database Buffers 50331648 bytes

Redo Buffers 5120000 bytes

SQL>

2、创建密码文件

--必须保持target DB和auxiliary DB的密码一致。这里我直接把target db的密码文件复制到auxiliary db对应的目录下并重命名

--target db上执行

[oracle@localhost ~]$ scp /u01/app/oracle/product/11.2.0/db/dbs/orapwmydb oracle@192.168.56.150:/u01/app/oracle/product/11.2.0/db/dbs/orapworadu

The authenticity of host '192.168.56.150 (192.168.56.150)' can't be established.

RSA key fingerprint is 58:71:ed:0c:e0:2a:57:68:3e:fe:79:52:8b:72:2e:00.

Are you sure you want to continue connecting (yes/no)? yes

Warning: Permanently added '192.168.56.150' (RSA) to the list of known hosts.

oracle@192.168.56.150's password:

orapwmydb 100% 1536 1.5KB/s 00:00

3、配置target db 和auxiliary db的监听

--auxiliary db必须使用静态监听，否则报错RMAN-04006: error from auxiliary database: ORA-12528: TNS:listener: all appropriate instances are blocking new connections

--auxiliary db

vi /u01/app/oracle/product/11.2.0/db/network/admin/listener.ora

SID_LIST_LISTENER =

(SID_LIST =

(SID_DESC =

(ORACLE_HOME = /u01/app/oracle/product/11.2.0/db)

(SID_NAME=oradu)

)

vi /u01/app/oracle/product/11.2.0/db/network/admin/tnsnames.ora

mydb =

(DESCRIPTION =

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.56.10)(PORT = 1521))

(CONNECT_DATA =

(SERVICE_NAME = mydb)

(SERVER = DEDICATED)

--target db

(ORACLE_SID = mydb)

oradu =

(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.56.150)(PORT = 1521))

(SERVICE_NAME = oradu)

--重启两台机器的监听

lsnrctl stop

lsnrctl start

4、开始复制

--在target db上执行

[oracle@localhost ~]$rman target / auxiliary sys/123456@oradu

Recovery Manager: Release 11.2.0.3.0 - Production on Sun Mar 20 14:09:39 2016

connected to target database: MYDB (DBID=2820637901)

connected to auxiliary database: ORADU (not mounted)

RMAN>duplicate target database to oradu from active database;

Starting Duplicate Db at 20-MAR-16

using target database control file instead of recovery catalog

allocated channel: ORA_AUX_DISK_1

channel ORA_AUX_DISK_1: SID=20 device type=DISK

contents of Memory Script:

{

sql clone "create spfile from memory";

}

executing Memory Script

sql statement: create spfile from memory

shutdown clone immediate;

startup clone nomount;

Oracle instance shut down

connected to auxiliary database (not started)

Oracle instance started

Total System Global Area 238034944 bytes

Fixed Size 2227136 bytes

Variable Size 180356160 bytes

Database Buffers 50331648 bytes

Redo Buffers 5120000 bytes

sql clone "alter system set db_name =

''MYDB'' comment=

''Modified by RMAN duplicate'' scope=spfile";

sql clone "alter system set db_unique_name =

''ORADU'' comment=

startup clone force nomount

backup as copy current controlfile auxiliary format '/u01/app/oracle/product/11.2.0/db/dbs/cntrloradu.dbf';

alter clone database mount;

sql statement: alter system set db_name = ''MYDB'' comment= ''Modified by RMAN duplicate'' scope=spfile

sql statement: alter system set db_unique_name = ''ORADU'' comment= ''Modified by RMAN duplicate'' scope=spfile

Starting backup at 20-MAR-16

allocated channel: ORA_DISK_1

channel ORA_DISK_1: SID=34 device type=DISK

channel ORA_DISK_1: starting datafile copy

copying current control file

output file name=/u01/app/oracle/product/11.2.0/db/dbs/snapcf_mydb.f tag=TAG20160320T140956 RECID=31 STAMP=906991797

channel ORA_DISK_1: datafile copy complete,elapsed time: 00:00:03

Finished backup at 20-MAR-16

database mounted

set newname for datafile 1 to

"/u01/app/oracle/oradata/oradu/system01.dbf";

set newname for datafile 2 to

"/u01/app/oracle/oradata/oradu/sysaux01.dbf";

set newname for datafile 3 to

"/u01/app/oracle/oradata/oradu/undotbs01.dbf";

set newname for datafile 4 to

"/u01/app/oracle/oradata/oradu/users01.dbf";

set newname for datafile 5 to

"/u01/app/oracle/oradata/oradu/test.dbf";

set newname for datafile 6 to

"/u01/app/oracle/oradata/oradu/store_01.dbf";

set newname for datafile 7 to

"/u01/app/oracle/oradata/oradu/store_02.dbf";

set newname for datafile 8 to

"/u01/app/oracle/oradata/oradu/pitr01.dbf";

backup as copy reuse

datafile 1 auxiliary format

"/u01/app/oracle/oradata/oradu/system01.dbf" datafile

2 auxiliary format

"/u01/app/oracle/oradata/oradu/sysaux01.dbf" datafile

3 auxiliary format

"/u01/app/oracle/oradata/oradu/undotbs01.dbf" datafile

4 auxiliary format

"/u01/app/oracle/oradata/oradu/users01.dbf" datafile

5 auxiliary format

"/u01/app/oracle/oradata/oradu/test.dbf" datafile

6 auxiliary format

"/u01/app/oracle/oradata/oradu/store_01.dbf" datafile

7 auxiliary format

"/u01/app/oracle/oradata/oradu/store_02.dbf" datafile

8 auxiliary format

"/u01/app/oracle/oradata/oradu/pitr01.dbf" ;

sql 'alter system archive log current';

executing command: SET NEWNAME

using channel ORA_DISK_1

input datafile file number=00001 name=/u01/app/oracle/oradata/mydb/system01.dbf

output file name=/u01/app/oracle/oradata/oradu/system01.dbf tag=TAG20160320T141004

input datafile file number=00002 name=/u01/app/oracle/oradata/mydb/sysaux01.dbf

output file name=/u01/app/oracle/oradata/oradu/sysaux01.dbf tag=TAG20160320T141004

input datafile file number=00003 name=/u01/app/oracle/oradata/mydb/undotbs01.dbf

output file name=/u01/app/oracle/oradata/oradu/undotbs01.dbf tag=TAG20160320T141004

input datafile file number=00004 name=/u01/app/oracle/oradata/mydb/users01.dbf

output file name=/u01/app/oracle/oradata/oradu/users01.dbf tag=TAG20160320T141004

input datafile file number=00007 name=/u01/app/oracle/oradata/mydb/store_02.dbf

output file name=/u01/app/oracle/oradata/oradu/store_02.dbf tag=TAG20160320T141004

input datafile file number=00005 name=/u01/app/oracle/oradata/mydb/test.dbf

output file name=/u01/app/oracle/oradata/oradu/test.dbf tag=TAG20160320T141004

input datafile file number=00006 name=/u01/app/oracle/oradata/mydb/store_01.dbf

output file name=/u01/app/oracle/oradata/oradu/store_01.dbf tag=TAG20160320T141004

input datafile file number=00008 name=/u01/app/oracle/oradata/mydb/pitr01.dbf

output file name=/u01/app/oracle/oradata/oradu/pitr01.dbf tag=TAG20160320T141004

sql statement: alter system archive log current

archivelog like "/u01/app/oracle/product/11.2.0/db/dbs/arch/1_22_906314379.dbf" auxiliary format

"/u01/app/oracle/product/11.2.0/db/dbs/arch1_22_906314379.dbf" ;

catalog clone archivelog "/u01/app/oracle/product/11.2.0/db/dbs/arch1_22_906314379.dbf";

switch clone datafile all;

channel ORA_DISK_1: starting archived log copy

input archived log thread=1 sequence=22 RECID=44 STAMP=906991972

output file name=/u01/app/oracle/product/11.2.0/db/dbs/arch1_22_906314379.dbf RECID=0 STAMP=0

channel ORA_DISK_1: archived log copy complete,elapsed time: 00:00:01

cataloged archived log

archived log file name=/u01/app/oracle/product/11.2.0/db/dbs/arch1_22_906314379.dbf RECID=44 STAMP=906989788

datafile 1 switched to datafile copy

input datafile copy RECID=31 STAMP=906989788 file name=/u01/app/oracle/oradata/oradu/system01.dbf

datafile 2 switched to datafile copy

input datafile copy RECID=32 STAMP=906989788 file name=/u01/app/oracle/oradata/oradu/sysaux01.dbf

datafile 3 switched to datafile copy

input datafile copy RECID=33 STAMP=906989788 file name=/u01/app/oracle/oradata/oradu/undotbs01.dbf

datafile 4 switched to datafile copy

input datafile copy RECID=34 STAMP=906989788 file name=/u01/app/oracle/oradata/oradu/users01.dbf

datafile 5 switched to datafile copy

input datafile copy RECID=35 STAMP=906989788 file name=/u01/app/oracle/oradata/oradu/test.dbf

datafile 6 switched to datafile copy

input datafile copy RECID=36 STAMP=906989788 file name=/u01/app/oracle/oradata/oradu/store_01.dbf

datafile 7 switched to datafile copy

input datafile copy RECID=37 STAMP=906989788 file name=/u01/app/oracle/oradata/oradu/store_02.dbf

datafile 8 switched to datafile copy

input datafile copy RECID=38 STAMP=906989788 file name=/u01/app/oracle/oradata/oradu/pitr01.dbf

set until scn 2809336;

recover

clone database

delete archivelog

;

executing command: SET until clause

Starting recover at 20-MAR-16

channel ORA_AUX_DISK_1: SID=18 device type=DISK

starting media recovery

archived log for thread 1 with sequence 22 is already on disk as file /u01/app/oracle/product/11.2.0/db/dbs/arch1_22_906314379.dbf

archived log file name=/u01/app/oracle/product/11.2.0/db/dbs/arch1_22_906314379.dbf thread=1 sequence=22

media recovery complete,Arial;font-size:3px;">Finished recover at 20-MAR-16