环境梳理

原始库(主库):

ip:192.168.1.210

db_name:orcl

sid:orcl

db_unique_name:orcl

hostname;Nagiostest

[oracle@Nagiostest ~]$ cat /etc/hosts

127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4

::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

192.168.1.210 Nagiostest     

192.168.1.211 OEL6 


创建的物理备库(备库):

ip:192.168.1.211

db_name:orcl

sid:orcl2

db_unique_name:orcl2

hostname;OEL6

[oracle@OEL6 ~]$ cat /etc/hosts

127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4

::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

192.168.1.211 OEL6 

192.168.1.210 Nagiostest 


一:配置主库:

1.打开数据库的强制写功能

select force_logging from v$database;

alter database force logging;

SQL> select force_logging from v$database;


FOR

---

YES


2.创建口令文件

orapwd file=$ORACLE_HOME/dbs/orapworcl password=yuanlei force=y


3.创建standby logfile group  

如果数据库工作在最大保护或者最大可用模式必须要配standby logfile

首先确认一下自身环境下的日志组个日志成员个数+1创建

SQL> select GROUP#,STATUS,MEMBER from v$logfile;

    GROUP# STATUS  MEMBER

---------- ------- ---------------------------------------------

3   /u01/app/oracle/oradata/orcl/redo03.log

2   /u01/app/oracle/oradata/orcl/redo02.log

1   /u01/app/oracle/oradata/orcl/redo01.log


SQL>

alter database add standby logfile group 4('/u01/app/oracle/oradata/orcl/redo0401.log') size 50M;

alter database add standby logfile group 5('/u01/app/oracle/oradata/orcl/redo0501.log') size 50M;

alter database add standby logfile group 6('/u01/app/oracle/oradata/orcl/redo0601.log') size 50M;

alter database add standby logfile group 7('/u01/app/oracle/oradata/orcl/redo0701.log') size 50M;


4.验证standby logfile group

SQL> select GROUP#,STATUS,MEMBER from v$logfile;

    GROUP# STATUS  MEMBER

---------- ------- ---------------------------------------------

3   /u01/app/oracle/oradata/orcl/redo03.log

2   /u01/app/oracle/oradata/orcl/redo02.log

1   /u01/app/oracle/oradata/orcl/redo01.log

4   /u01/app/oracle/oradata/orcl/redo0401.log

5   /u01/app/oracle/oradata/orcl/redo0501.log

6   /u01/app/oracle/oradata/orcl/redo0601.log

7   /u01/app/oracle/oradata/orcl/redo0701.log

SQL> select group#,thread#,sequence#,archived,status from v$standby_log;


    GROUP#    THREAD#  SEQUENCE# ARC STATUS

---------- ---------- ---------- --- ----------

4    0       0 YES UNASSIGNED

5    0       0 YES UNASSIGNED

6    0       0 YES UNASSIGNED

7    0       0 YES UNASSIGNED


5.配置归档

shutdown immediate

startup mount

alter database archivelog;

alter system set log_archive_dest_1='location=/u01/archivelog'

alter database open;

-- 之前已经开启过归档,信息如下

SQL> archive log list;

Database log mode       Archive Mode

Automatic archival       Enabled

Archive destination       /u01/archivelog

Oldest online log sequence     87

Next log sequence to archive   89

Current log sequence       89


6.创建pfile参数文件,用于复制数据库时,在备库上启动辅助实例

SQL> create pfile from spfile;

File created.

[oracle@Nagiostest dbs]$ pwd

/u01/app/oracle/product/11.2/dbs

[oracle@Nagiostest dbs]$ ls initorcl.ora 

initorcl.ora


7.配置主库的参数文件

主角色参数配置:

alter system set db_unique_name='orcl' scope=spfile;

alter system set log_archive_config='dg_config=(orcl,orcl2)'scope=spfile;

alter system set log_archive_dest_1='location=/u01/archivelog valid_for=(ALL_LOGFILES,ALL_ROLES) db_unique_name=orcl' scope=spfile;

alter system set log_archive_dest_2='service=orcl2 ASYNC valid_for=(online_logfiles,primary_role) db_unique_name=orcl2' scope=spfile;

alter system set control_files='/u01/app/oracle/oradata/orcl/control01.ctl','/u01/app/oracle/oradata/orcl/control02.ctl' scope=spfile;

alter system set log_archive_dest_state_1=enable scope=spfile;

alter system set log_archive_dest_state_2=enable scope=spfile;

alter system set log_archive_format='%t_%s_%r.arc' scope=spfile;

alter system set log_archive_max_processes=10 scope=spfile;

alter system set remote_login_passwordfile=exclusive scope=spfile;

alter system set fal_server=orcl2 scope=spfile;

alter system set fal_client=orcl scope=spfile;

alter system set db_file_name_convert='/u01/app/oracle/oradata/orcl','/u01/app/oracle/oradata/orcl' scope=spfile;

alter system set log_file_name_convert='/u01/app/oracle/oradata/orcl/','/u01/app/oracle/oradata/orcl/' scope=spfile;

alter system set standby_file_management=auto scope=spfile;


重启数据库:

SQL> show parameter db_name

NAME     TYPE VALUE

------------------------------------ ----------- ------------------------------

db_name     string orcl

SQL> startup force

ORACLE instance started.

Total System Global Area  413372416 bytes

Fixed Size    2213896 bytes

Variable Size  331352056 bytes

Database Buffers   75497472 bytes

Redo Buffers    4308992 bytes

Database mounted.

Database opened.

SQL> 


8.主库网络配置

创建监听:

[oracle@Nagiostest ~]$ cd /u01/app/oracle/product/11.2/network/admin/

[oracle@Nagiostest admin]$ cat 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)

    )

  )


LISTENER =

  (DESCRIPTION_LIST =

    (DESCRIPTION =

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

    )

  )


ADR_BASE_LISTENER = /u01/app/oracle


 

[oracle@Nagiostest admin]$ cat tnsnames.ora 

# tnsnames.ora Network Configuration File: /u01/app/oracle/product/11.2/network/admin/tnsnames.ora

# Generated by Oracle configuration tools.

ORCL =

  (DESCRIPTION =

    (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.210)(PORT = 1521))

    (CONNECT_DATA =

      (SERVER = DEDICATED)

      (SERVICE_NAME = orcl)

    )

  )


ORCL2 =

  (DESCRIPTION =

    (ADDRESS_LIST =

      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.211)(PORT = 1521))

    )

    (CONNECT_DATA =

      (SERVER = DEDICATED)

      (SERVICE_NAME = orcl2)

    )

  )


二:配置备库

1.配置物理背库数据库的参数文件


从主库复制参数文件

scp 主库的pfile参数文件,并更名为 initorcl2.ora

[oracle@OEL6 dbs]$ ls

cntrlorcl2.dbf  hc_DBUA0.dat  hc_orcl2.dat  hc_orcl.dat  init.ora  lkORCL  lkORCL2

[oracle@OEL6 dbs]$ pwd

/u01/app/oracle/product/11.2.0/db_1/dbs

[oracle@OEL6 dbs]$ scp 192.168.1.210:/u01/app/oracle/product/11.2/dbs/initorcl.ora ./initorcl2.ora

[email protected]'s password: 

initorcl.ora                                                                                              100% 1459     1.4KB/s   00:00    

[oracle@OEL6 dbs]$ ls

cntrlorcl2.dbf  hc_DBUA0.dat  hc_orcl2.dat  hc_orcl.dat  init.ora  initorcl2.ora  lkORCL  lkORCL2

创建归档和其它目录:

[oracle@OEL6 dbs]$ mkdir -p /u01/archivelog2

[oracle@OEL6 dbs]$ mkdir -p /u01/app/oracle/admin/orcl/{a,b,c,dp,u}dump

[oracle@OEL6 dbs]$ mkdir -p /u01/app/oracle/oradata/orcl


创建spfile

export ORACLE_SID=orcl2  这里如果是已经设置好的(.bash_profile),就没必要设置 

sqlplus / as sysdba

startup nomount pfile=?/dbs/initorcl2.ora

启用spfile


SQL> startup nomount pfile=?/dbs/initorcl2.ora

ORACLE instance started.

Total System Global Area  413372416 bytes

Fixed Size    2213896 bytes

Variable Size  268437496 bytes

Database Buffers  138412032 bytes

Redo Buffers    4308992 bytes


SQL> create spfile from pfile;

File created.


SQL> shutdown immediate;

ORA-01507: database not mounted

ORACLE instance shut down.


SQL> startup nomount;

ORACLE instance started.

Total System Global Area  413372416 bytes

Fixed Size    2213896 bytes

Variable Size  268437496 bytes

Database Buffers  138412032 bytes

Redo Buffers    4308992 bytes

SQL> 

配置备库orcl2数据库的参数文件

alter system set db_unique_name='orcl2' scope=spfile;

alter system set log_archive_config='dg_config=(orcl,orcl2)' scope=spfile;

alter system set log_archive_dest_1='location=/u01/archivelog2 valid_for=(ALL_LOGFILES,ALL_ROLES)  db_unique_name=orcl2' scope=spfile;

alter system set log_archive_dest_2='service=orcl ASYNC valid_for=(online_logfiles,primary_role) db_unique_name=orcl' scope=spfile;

alter system set control_files='/u01/app/oracle/oradata/orcl/control01.ctl','/u01/app/oracle/oradata/orcl/control02.ctl' scope=spfile;

alter system set log_archive_dest_state_1=enable scope=spfile;

alter system set log_archive_dest_state_2=enable scope=spfile;

alter system set log_archive_format='%t_%s_%r.arc' scope=spfile;

alter system set log_archive_max_processes=10 scope=spfile;

alter system set remote_login_passwordfile=exclusive scope=spfile;

alter system set fal_server=orcl scope=spfile;

alter system set fal_client=orcl2 scope=spfile;

alter system set db_file_name_convert='/u01/app/oracle/oradata/orcl/','/u01/app/oracle/oradata/orcl/' scope=spfile;

alter system set log_file_name_convert='/u01/app/oracle/oradata/orcl/','/u01/app/oracle/oradata/orcl/' scope=spfile;

alter system set standby_file_management=auto scope=spfile;

关闭数据库使参数下次启动生效

shutdown immediate;


2.为standby数据库创建一个password

从源库拷贝将口令文件拷贝过来,修改名字

-- orapwd file=$ORACLE_HOME/dbs/orapworcl2 password=yuanlei force=y ----密码与主库的密码完全一样(不建议这样)

重启动备库到nomount

startup nomount;

3.网络配置

创建启动监听:

在监听器里进行静态注册:

[oracle@OEL6 admin]$ pwd

/u01/app/oracle/product/11.2.0/db_1/network/admin

[oracle@OEL6 admin]$ cat listener.ora 

# listener.ora Network Configuration File: /u01/app/oracle/product/11.2.0/db_1/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/11.2.0/db_1)

      (PROGRAM = extproc)

    )

    (SID_DESC =

      (GLOBAL_DBNAME = orcl2)

      (ORACLE_HOME = /u01/app/oracle/product/11.2.0/db_1)

      (SID_NAME = orcl2)

    )

  )



LISTENER =

  (DESCRIPTION_LIST =

    (DESCRIPTION =

      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))

      (ADDRESS = (PROTOCOL = TCP)(HOST = OEL6)(PORT = 1521))

    )

  )


ADR_BASE_LISTENER = /u01/app/oracle


[oracle@OEL6 admin]$ cat tnsnames.ora 

ORCL =

  (DESCRIPTION =

    (ADDRESS_LIST =

      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.210)(PORT = 1521))

    )

    (CONNECT_DATA =

      (SERVICE_NAME = orcl)

    )

  )

ORCL2 =

  (DESCRIPTION =

    (ADDRESS_LIST =

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

    )

    (CONNECT_DATA =

      (SERVICE_NAME = orcl2)

    )

  )


启动监听

lsnrctl start

在两端数据库检查是否联通

tnsping orcl

tnsping orcl2

确保网络畅通

三、在主库上用rman进行全备份,并生成备库所用的控制文件和其它数据文件

在主库和备库上创建相同的备份目录(主库的本次的备份要完全拷贝的备库的相同目录下)注意要备份standby控制文件

mkdir -p /u01/rmanbak

[oracle@Nagiostest rmanbak]$ rman target /


run {

allocate channel c0 type disk;

allocate channel c1 type disk;

allocate channel c2 type disk;

backup database filesperset 10 format='/u01/rmanbak/%d_%s_%T.dbf'

include current controlfile for standby

plus archivelog format='/u01/rmanbak/%d_%s_%T.arc';

sql 'alter system archive log current';

sql 'alter system archive log current';

sql 'alter system archive log current';

release channel c0;

release channel c1;

release channel c2;

}


完成备份之后,在主库上将备份集完全复制到备库

[oracle@Nagiostest rmanbak]$ scp /u01/rmanbak/* 192.168.1.211:/u01/rmanbak

[email protected]'s password: 

ORCL_81_20140820.arc                                                                     100% 3140KB   3.1MB/s   00:00    

ORCL_82_20140820.arc                                                                     100% 2033KB   2.0MB/s   00:00    

ORCL_83_20140820.arc                                                                     100%  672KB 671.5KB/s   00:00    

ORCL_84_20140820.arc                                                                     100%  502KB 501.5KB/s   00:00    

ORCL_85_20140820.dbf                                                                     100%  613MB  16.6MB/s   00:37    

ORCL_86_20140820.dbf                                                                     100%  385MB  16.0MB/s   00:24    

ORCL_87_20140820.dbf                                                                     100%   74MB  14.9MB/s   00:05    

ORCL_88_20140820.dbf                                                                     100%   10MB   9.9MB/s   00:00    

ORCL_89_20140820.arc                                                                     100%   43KB  42.5KB/s   00:00    

在主库使用rman连接主库和备库,进行文件传输

[oracle@Nagiostest rmanbak]$ rman target / auxiliary sys/yuanlei@orcl2

Recovery Manager: Release 11.2.0.1.0 - Production on Wed Aug 20 16:03:43 2014

Copyright (c) 1982, 2009, Oracle and/or its affiliates.  All rights reserved.

connected to target database: ORCL (DBID=1382226447)

connected to auxiliary database: ORCL (not mounted)

RMAN> duplicate target database for standby dorecover nofilenamecheck;



.

.

.

复制的过程

.

.

.



复制最后出现了Error

starting media recovery


Oracle Error: 

ORA-01547: warning: RECOVER succeeded but OPEN RESETLOGS would get error below

ORA-01152: file 1 was not restored from a sufficiently old backup 

ORA-01110: data file 1: '/u01/app/oracle/oradata/orcl/system01.dbf'

RMAN-00571: ===========================================================

RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============

RMAN-00571: ===========================================================

RMAN-03002: failure of Duplicate Db command at 08/20/2014 16:05:50

RMAN-03015: error occurred in stored script Memory Script

RMAN-06053: unable to perform media recovery because of missing log

RMAN-06025: no backup of archived log for thread 1 with sequence 112 and starting SCN of 1185239 found to restore

RMAN-06025: no backup of archived log for thread 1 with sequence 111 and starting SCN of 1185229 found to restore

RMAN-06025: no backup of archived log for thread 1 with sequence 110 and starting SCN of 1185209 found to restore

RMAN> quit

这个不影响,在下面下面备库执行应用redo后会自动补全

此时备库已经启动到mount状态

在备库orcl2上操作应用日志如下:

SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT;

Database altered.

之后会自动应rman复制所提示的没有传递到目标数据库的归档日志文件


此时在备库查看查看alert日志,缺失的归档日志已经应用,并且在备库的归档目录下,已经接收到主库传递过来的对应归档日志

[oracle@OEL6 trace]$ tail -30f alert_orcl2.log 

Managed Standby Recovery not using Real Time Apply

Waiting for all non-current ORLs to be archived...

All non-current ORLs have been archived.

Media Recovery Log /u01/archivelog2/1_109_854445713.arc

Media Recovery Log /u01/archivelog2/1_110_854445713.arc

Media Recovery Log /u01/archivelog2/1_111_854445713.arc

Media Recovery Log /u01/archivelog2/1_112_854445713.arc

Media Recovery Log /u01/archivelog2/1_113_854445713.arc

Completed: ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT

Media Recovery Log /u01/archivelog2/1_114_854445713.arc

Media Recovery Log /u01/archivelog2/1_115_854445713.arc

Media Recovery Log /u01/archivelog2/1_116_854445713.arc

Media Recovery Log /u01/archivelog2/1_117_854445713.arc

Media Recovery Log /u01/archivelog2/1_118_854445713.arc

Media Recovery Waiting for thread 1 sequence 119 (in transit)

归档会被应用


四:测试

在 主库orcl 上做些修改,然后切换日志

SQL> create table test as select * from dual;

Table created.

SQL> select * from test;

D

-

X

SQL> alter system switch logfile;

System altered.

在主库做日志切换的时候,可以在备库查看日志的增加变化情况

在orcl2 备库上查看是否已经同步数据

SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL;


Database altered.


SQL> alter database open read only;

Database altered.

SQL> select * from test;

D

-

X



ok 已经开始同步




在备库上查看日志:

SQL> SELECT NAME, CREATOR, SEQUENCE#, APPLIED, COMPLETION_TIME FROM V$ARCHIVED_LOG order by SEQUENCE#;

NAME CREATOR  SEQUENCE# APPLIED   COMPLETION_TIME

---------------------------------------- ------- ---------- --------- -------------------

/u01/archivelog2/1_109_854445713.arc ARCH 109 YES       2014-08-21 00:59:38

/u01/archivelog2/1_110_854445713.arc ARCH 110 YES       2014-08-21 00:59:39

/u01/archivelog2/1_111_854445713.arc ARCH 111 YES       2014-08-21 00:59:38

/u01/archivelog2/1_112_854445713.arc ARCH 112 YES       2014-08-21 00:59:38

/u01/archivelog2/1_113_854445713.arc ARCH 113 YES       2014-08-21 00:59:41

/u01/archivelog2/1_114_854445713.arc ARCH 114 YES       2014-08-21 00:59:49

/u01/archivelog2/1_115_854445713.arc ARCH 115 YES       2014-08-21 00:59:48

/u01/archivelog2/1_116_854445713.arc ARCH 116 YES       2014-08-21 00:59:46

/u01/archivelog2/1_117_854445713.arc ARCH 117 YES       2014-08-21 00:59:40

/u01/archivelog2/1_118_854445713.arc ARCH 118 YES       2014-08-21 00:59:49

/u01/archivelog2/1_119_854445713.arc ARCH 119 YES       2014-08-21 01:01:50

NAME CREATOR  SEQUENCE# APPLIED   COMPLETION_TIME

---------------------------------------- ------- ---------- --------- -------------------

/u01/archivelog2/1_120_854445713.arc ARCH 120 YES       2014-08-21 01:03:14

/u01/archivelog2/1_121_854445713.arc ARCH 121 YES       2014-08-21 01:10:00

/u01/archivelog2/1_122_854445713.arc ARCH 122 YES       2014-08-21 01:10:44

/u01/archivelog2/1_123_854445713.arc ARCH 123 YES       2014-08-21 01:15:38

15 rows selected.



----------------------------------------------------------

To start apply services on a physical standby database, ensure the physical standby database is started and mounted and then start Redo Apply using the SQL ALTER DATABASE RECOVER MANAGED STANDBY DATABASE statement.

You can specify that Redo Apply runs as a foreground session or as a background process, and enable it with real-time apply.


To start Redo Apply in the foreground, issue the following SQL statement:

SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE;

If you start a foreground session, control is not returned to the command prompt until recovery is canceled by another session.


To start Redo Apply in the background, include the DISCONNECT keyword on the SQL statement. For example:

SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT;

This statement starts a detached server process and immediately returns control to the user. While the managed recovery process is performing recovery in the background, the foreground process that issued the RECOVER statement can continue performing other tasks. This does not disconnect the current SQL session.


To start real-time apply, include the USING CURRENT LOGFILE clause on the SQL statement. For example:

SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE;


To stop Redo Apply, issue the following SQL statement:

SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL;

----------------------------------------------------------

在备库中启动redo apply

SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE;

SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT;

SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE;

SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL;

----------------------------------------------------------




至此,physical standby db 配置完成






1.查看主库scn

SQL> select name,checkpoint_change# from v$datafile;


NAME      CHECKPOINT_CHANGE#

--------------------------------------------- ------------------

/u01/app/oracle/oradata/orcl/system01.dbf 1191503

/u01/app/oracle/oradata/orcl/sysaux01.dbf 1191503

/u01/app/oracle/oradata/orcl/undotbs01.dbf 1191503

/u01/app/oracle/oradata/orcl/users01.dbf 1191503

/u01/app/oracle/oradata/orcl/example01.dbf 1191503

/u01/app/oracle/oradata/orcl/tbs_yl01.dbf 1191503

/u01/app/oracle/oradata/orcl/tbs_yl02.dbf 1191503

/u01/app/oracle/oradata/orcl/tbs_yl03.dbf 1191503

/u01/app/oracle/oradata/orcl/tbs_yl04.dbf 1191503

/u01/app/oracle/oradata/orcl/tbs_yl05.dbf 1191503

/u01/app/oracle/oradata/orcl/tbs_yl06.dbf 1191503


NAME      CHECKPOINT_CHANGE#

--------------------------------------------- ------------------

/u01/app/oracle/oradata/orcl/tbs_yl07.dbf 1191503

/u01/app/oracle/oradata/orcl/tbs_yl08.dbf 1191503

/u01/app/oracle/oradata/orcl/rcatalog.dbf 1191503


14 rows selected.


SQL> select name,checkpoint_change# from v$datafile_header;


NAME      CHECKPOINT_CHANGE#

--------------------------------------------- ------------------

/u01/app/oracle/oradata/orcl/system01.dbf 1191503

/u01/app/oracle/oradata/orcl/sysaux01.dbf 1191503

/u01/app/oracle/oradata/orcl/undotbs01.dbf 1191503

/u01/app/oracle/oradata/orcl/users01.dbf 1191503

/u01/app/oracle/oradata/orcl/example01.dbf 1191503

/u01/app/oracle/oradata/orcl/tbs_yl01.dbf 1191503

/u01/app/oracle/oradata/orcl/tbs_yl02.dbf 1191503

/u01/app/oracle/oradata/orcl/tbs_yl03.dbf 1191503

/u01/app/oracle/oradata/orcl/tbs_yl04.dbf 1191503

/u01/app/oracle/oradata/orcl/tbs_yl05.dbf 1191503

/u01/app/oracle/oradata/orcl/tbs_yl06.dbf 1191503


NAME      CHECKPOINT_CHANGE#

--------------------------------------------- ------------------

/u01/app/oracle/oradata/orcl/tbs_yl07.dbf 1191503

/u01/app/oracle/oradata/orcl/tbs_yl08.dbf 1191503

/u01/app/oracle/oradata/orcl/rcatalog.dbf 1191503


14 rows selected.


SQL> 


2.查看备库scn

SQL> select name,checkpoint_change# from v$datafile;


NAME      CHECKPOINT_CHANGE#

--------------------------------------------- ------------------

/u01/app/oracle/oradata/orcl/system01.dbf 1191503

/u01/app/oracle/oradata/orcl/sysaux01.dbf 1191503

/u01/app/oracle/oradata/orcl/undotbs01.dbf 1191503

/u01/app/oracle/oradata/orcl/users01.dbf 1191503

/u01/app/oracle/oradata/orcl/example01.dbf 1191503

/u01/app/oracle/oradata/orcl/tbs_yl01.dbf 1191503

/u01/app/oracle/oradata/orcl/tbs_yl02.dbf 1191503

/u01/app/oracle/oradata/orcl/tbs_yl03.dbf 1191503

/u01/app/oracle/oradata/orcl/tbs_yl04.dbf 1191503

/u01/app/oracle/oradata/orcl/tbs_yl05.dbf 1191503

/u01/app/oracle/oradata/orcl/tbs_yl06.dbf 1191503


NAME      CHECKPOINT_CHANGE#

--------------------------------------------- ------------------

/u01/app/oracle/oradata/orcl/tbs_yl07.dbf 1191503

/u01/app/oracle/oradata/orcl/tbs_yl08.dbf 1191503

/u01/app/oracle/oradata/orcl/rcatalog.dbf 1191503


14 rows selected.


SQL> select name,checkpoint_change# from v$datafile_header;


NAME      CHECKPOINT_CHANGE#

--------------------------------------------- ------------------

/u01/app/oracle/oradata/orcl/system01.dbf 1191503

/u01/app/oracle/oradata/orcl/sysaux01.dbf 1191503

/u01/app/oracle/oradata/orcl/undotbs01.dbf 1191503

/u01/app/oracle/oradata/orcl/users01.dbf 1191503

/u01/app/oracle/oradata/orcl/example01.dbf 1191503

/u01/app/oracle/oradata/orcl/tbs_yl01.dbf 1191503

/u01/app/oracle/oradata/orcl/tbs_yl02.dbf 1191503

/u01/app/oracle/oradata/orcl/tbs_yl03.dbf 1191503

/u01/app/oracle/oradata/orcl/tbs_yl04.dbf 1191503

/u01/app/oracle/oradata/orcl/tbs_yl05.dbf 1191503

/u01/app/oracle/oradata/orcl/tbs_yl06.dbf 1191503


NAME      CHECKPOINT_CHANGE#

--------------------------------------------- ------------------

/u01/app/oracle/oradata/orcl/tbs_yl07.dbf 1191503

/u01/app/oracle/oradata/orcl/tbs_yl08.dbf 1191503

/u01/app/oracle/oradata/orcl/rcatalog.dbf 1191503


14 rows selected.



可以看到完全一样