一,DG搭建实例--主库配置

　　one : 归档配置

　　　 01,查看归档

　　　　 1 select log_mode,force_logging from v$database;

　　　　　02,开启归档

　　　　　　关闭数据库重新启动到mount阶段　　　　

shutdown immediate

startup mount

　　　　　　03,改成归档模式和强制 logging

SQL> alter database archivelog;

Database altered.

SQL> alter database force logging;

Database altered.

　　　　　　　　　　再次查看:

　　　　　　04,改变归档目录　

!mkdir /u01/app/oracle/oradata/oracle01/archivelog

!ls /u01/app/oracle/oradata/oracle01/

alter system set log_archive_dest_1='location=/u01/app/oracle/oradata/oracle01/archivelog';

alter database open;

　　　　05,创建pfile文件　

1 create pfile from spfile;

2

3 alter database create standby controlfile as '/u01/oracle/standby.ctl';

　　two.设置闪回-flashback

　　　　01,查看是否开启:

SQL> select flashback_on from v$database;

FLASHBACK_ON

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

NO                -----如果为YES可以忽略这一步

　　　　02, 设置闪回路径

SQL> altersystem set db_recovery_file_dest='/u01/app/oracle';

　　　　03,设置闪回大小

SQL> altersystem set db_recovery_file_dest_size='5G';

　　　　04,关闭数据库重新启动

SQL> shutdown immediate; ----关闭数据库

SQL> alter database flashback on;  ----开启闪回

SQL> alter database open;   ------open数据库

　　　　 05,验证数据

　　three.添加standby日志

　　　　　01,查看主库在线日志大小和主数

SQL> select group#,bytes/1024/1024 from v$log;
GROUP# BYTES/1024/1024
---------- ---------------

1 50

2 50

3 50

　　　　 02,查看备库在线日志大小和主数

SQL>  select group#,bytes/1024/1024 from v$standby_log;

　　　　　　默认显示

　　　　　　　　　no rows selected

　　　　　03,创建

 SQL> alter database add standby logfile group 11 '/data/CEBPM/onlinelog/redo11_stb01.log' size 50M;

 SQL> alter database add standby logfile group 12 '/data/CEBPM/onlinelog/redo12_stb01.log' size 50M;

 SQL> alter database add standby logfile group 13 '/data/CEBPM/onlinelog/redo13_stb01.log' size 50M;

 SQL> alter database add standby logfile group 14 '/data/CEBPM/onlinelog/redo14_stb01.log' size 50M;

　　　　　 04,再次查看备库的时候发现:

　　　four.主库修改参数文件

SQL> select group#,bytes/1024/1024 from v$standby_log;

SQL> alter database add standby logfile group 14 '/u01/oracle/redo14_stb01.log' size 50M;

SQL> alter system set log_archive_config='DG_CONFIG=(oracle01,standby)';

SQL> alter system set log_archive_dest_2='SERVICE=standby VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=standby' scope=spfile;

SQL> alter system set log_archive_dest_state_1='enable';

SQL> alter system set log_archive_dest_state_2='enable'

SQL> alter system set db_file_name_convert='/u01/oracle/datafile','/u01/oracle/datafile'scope=spfile;

SQL> alter system set log_file_name_convert='/u01/oracle/onlinelog','/u01/oracle/onlinelog'scope=spfile;

SQL> alter system set fal_server='standby';

SQL> alter system set fal_client='oracle01';

SQL> alter system set standby_file_management='AUTO';

全部执行输出显示为:
　　System altered.

修改完成后重启数据库
　　
SQL> shutdown immediate
SQL> startup

　　five.修改配置文件

　　　　　　01, listener.ora

[root@oracle01 ~]# cat /u01/app/oracle/product/11.2.0/db_1/network/admin/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 =

  (GLOBAL_DBNAME = oracle01)

  (SID_NAME = oracle01)

  )

)

LISTENER =

  (DESCRIPTION_LIST =

    (DESCRIPTION =

      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.10)(PORT = 1521))

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

    )

  )

ADR_BASE_LISTENER = /u01/app/oracle

　　　　　　 02, tnsnames.ora

[root@oracle01 ~]# cat /u01/app/oracle/product/11.2.0/db_1/network/admin/tnsnames.ora

# tnsnames.ora Network Configuration File: /u01/app/oracle/product/11.2.0/db_1/network/admin/tnsnames.ora

# Generated by Oracle configuration tools.

ORACLE01 =

  (DESCRIPTION =

    (ADDRESS_LIST =

      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.10)(PORT = 1521))

    )

    (CONNECT_DATA =

      (SERVICE_NAME = oracle01)

    )

  )

STANDBY =

  (DESCRIPTION =

    (ADDRESS_LIST =

      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.16)(PORT = 1521))

    )

    (CONNECT_DATA =

      (SERVICE_NAME = standby)

    )

  )

　　　　　03,重启监听

　　　　　　[oracle@oracle01 ~]#lsnrctl stop

　　　　　　[oracle@oracle01 ~]#lsnrctl start

　　six.文件传输

SQL> create pfile='/tmp/initoracle01.ora' fromspfile;

生成参数文件

拷贝参数文件与密码文件

scp orapworacle01 192.168.1.143:/u01/app/oracle/product/11.2.0/db_1/dbs/

scp /tmp/initoracle01.ora 192.168.1.143:/u01/app/oracle/product/11.2.0/db_1/dbs/

二,DG搭建实例--从库配置

　　one.配置文件修改

　　　　01,配置文件重命名

　　　　　　重命名文件

[root@standby dbs]# mv initoracle01.ora initstandby.ora

[root@standby dbs]# mv orapworacle01 orapwstandby

　　　　02,改配置文件

 [root@standby dbs]# pwd

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

 [root@standby dbs]# cat initstandby.ora

 *.audit_file_dest='/u01/app/oracle/admin/standby/adump'

 *.audit_trail='db'

 *.compatible='11.2.0.4.0'

 *.control_files='/u01/oracle/standby.ctl'

 *.db_block_size=8192

 *.db_domain='localdomain'

 *.db_file_name_convert='/u01/oracle/datafile','/u01/oracle/datafile'

 *.db_name='oracle01'

 *.db_recovery_file_dest='/u01/oracle'

 *.db_recovery_file_dest_size=5368709120

 *.db_unique_name='standby'

 *.diagnostic_dest='/u01/app/oracle'

 *.dispatchers='(PROTOCOL=TCP) (SERVICE=oracle01XDB)'

 *.fal_server='oracle01'

 *.fal_client='standby'

 *.log_archive_config='DG_CONFIG=(oracle01,standby)'

 *.log_archive_dest_1='location=/u01/oracle/archivelog'

 *.log_archive_dest_2='SERVICE=oracle01 VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=oracle01'

 *.log_archive_dest_state_1='enable'

 *.log_archive_dest_state_2='enable'

 *.log_file_name_convert='/u01/oracle/onlinelog','/u01/oracle/onlinelog'

 *.open_cursors=300

 *.pga_aggregate_target=836763648

 *.processes=150

 *.remote_login_passwordfile='EXCLUSIVE'

 *.sga_target=2510290944

 *.standby_file_management='AUTO'

 *.undo_tablespace='UNDOTBS1'

　　　　03,创建必要的目录

　　　　mkdir -p /u01/app/oracle/admin/standby/adump

　　　　mkdir -p /u01/oracle/onlinelog/

　　　　mkdir -p /u01/oracle/datafile

　　　　mkdir -p /u01/oracle/archivelog

　　　　mkdir -p /u01/oracle/controlfile

　　　two.从库配置文件更新

　　　　01,　listener.ora

 [root@standby ~]# cat /u01/app/oracle/product/11.2.0/db_1/network/admin/listener.ora

 SID_LIST_LISTENER =

  (SID_LIST =

    (SID_DESC =

      (GLOBAL_DBNAME = standby)

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

      (SID_NAME = standby)

     )

    )

 STENER =

  (DESCRIPTION_LIST =

    (DESCRIPTION =

      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.16)(PORT = 1521))

     )

   )

 ADR_BASE_LISTENER = /u01/app/oracle

　　　　02, tnsnames.ora

 [root@standby ~]# cat /u01/app/oracle/product/11.2.0/db_1/network/admin/

 listener.ora      samples/          shrept.lst        tnsnames.ora      tnsnames.ora.bak

 [root@standby ~]# cat /u01/app/oracle/product/11.2.0/db_1/network/admin/tnsnames.ora

 # tnsnames.ora Network Configuration File: /u01/app/oracle/product/11.2.0/db_1/network/admin/tnsnames.ora

 # Generated by Oracle configuration tools.

 ORACLE01 =

   (DESCRIPTION =

     (ADDRESS_LIST =

       (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.10)(PORT = 1521))

     )

     (CONNECT_DATA =

       (SERVICE_NAME = oracle01)

     )

   )

 STANDBY =

   (DESCRIPTION =

     (ADDRESS_LIST =

       (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.16)(PORT = 1521))

     )

     (CONNECT_DATA =

       (SERVICE_NAME = standby)

     )

   )

　　　　03, 重启监听服务器

　　　　　　　　[oracle@standby ~]$lsnrctl stop

　　　　　　　　[oracle@standby ~]$lsnrctl start　

　　　　04,启动从库为nomount

　　　　　　　　SQL> shutdown immediate;

　　　　　　　　SQL> startup nomount pfile='/u01/app/oracle/product/11.2.0/db_1/dbs/initstandby.ora';

　　　　　　　　SQL> create spfile from pfile;

　　three.验证监听

　　　　　　01.两端的数据库都需要执行

sqlplus sys/123456@oracle01 as sysdba

sqlplus sys/123456@standby as sysdba

主库执行结果

 [oracle@oracle01 ~]$ sqlplus sys/123456@standby as sysdba

 SQL*Plus: Release 11.2.0.4.0 Production on Thu Feb 21 11:43:14 2019

 Copyright (c) 1982, 2013, Oracle.  All rights reserved.

 Connected to:

 Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production

 With the Partitioning, OLAP, Data Mining and Real Application Testing options

 SQL> exit

 Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production

 With the Partitioning, OLAP, Data Mining and Real Application Testing options

 [oracle@oracle01 ~]$ sqlplus sys/123456@oracle01 as sysdba

 SQL*Plus: Release 11.2.0.4.0 Production on Thu Feb 21 13:04:26 2019

 Copyright (c) 1982, 2013, Oracle.  All rights reserved.

 Connected to:

 Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production

 With the Partitioning, OLAP, Data Mining and Real Application Testing options

 SQL> exit

 Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production

 With the Partitioning, OLAP, Data Mining and Real Application Testing options

从库执行结果

 [oracle@standby ~]$ sqlplus sys/123456@oracle01 as sysdba

 SQL*Plus: Release 11.2.0.4.0 Production on Thu Feb 21 13:06:18 2019

 Copyright (c) 1982, 2013, Oracle.  All rights reserved.

 Connected to:

 Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production

 With the Partitioning, OLAP, Data Mining and Real Application Testing options

 SQL> exit

 Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production

 With the Partitioning, OLAP, Data Mining and Real Application Testing options

 [oracle@standby ~]$

 [oracle@standby ~]$ sqlplus sys/123456@standby as sysdba

 SQL*Plus: Release 11.2.0.4.0 Production on Thu Feb 21 13:06:24 2019

 Copyright (c) 1982, 2013, Oracle.  All rights reserved.

 Connected to:

 Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production

 With the Partitioning, OLAP, Data Mining and Real Application Testing options

 SQL> exit

 Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production

 With the Partitioning, OLAP, Data Mining and Real Application Testing options

 [oracle@standby ~]$

三,rman数据备份与恢复

　　 one.主库备份数据

　　　　　　rman target /

　　　　　　RMAN> configure channel device type disk format '/oradata/backup/%U_%d';

　　　　　　RMAN> backup as compressed backupset database;

　　　　　　RMAN> backup current controlfile for standby format '/oradata/backup/standby.ctl';

　　　　　　##RMAN> backup full format='/u01/app/oracle/ORACLE01/backupset/db_%U' database include current controlfile for standby;

　　　　　　等生成后最后的输出上会显示目录

　　　　　　把文件全部发送到从库

　　　　 scp -r /u01/app/oracle/ORACLE01/backupset/* 192.168.0.16:/u01/backupset/

　　 two.从库数据恢复

　　　　　　01,注册恢复地址

　　　　　　RAMN> restore standby contolfile from '/u01/app/oracle/ORACLE01/backupset/db_%U' (根据各自名字确定)

　　　　　　RMAN> catalog start with '/u01/backupset/2019_02_21';　

 RMAN> catalog start with '/u01/backupset/2019_02_21';

 searching for all files that match the pattern /u01/backupset/2019_02_21

 List of Files Unknown to the Database

 =====================================

 File Name: /u01/backupset/2019_02_21/o1_mf_annnn_TAG20190221T112927_g6w6rq89_.bkp

 File Name: /u01/backupset/2019_02_21/o1_mf_nnndf_TAG20190221T112928_g6w6rrhr_.bkp

 File Name: /u01/backupset/2019_02_21/o1_mf_ncsnf_TAG20190221T112928_g6w6s8r5_.bkp

 File Name: /u01/backupset/2019_02_21/o1_mf_annnn_TAG20190221T112945_g6w6s9tt_.bkp

 Do you really want to catalog the above files (enter YES or NO)? yes

 cataloging files...

 cataloging done

 List of Cataloged Files

 =======================

 File Name: /u01/backupset/2019_02_21/o1_mf_annnn_TAG20190221T112927_g6w6rq89_.bkp

 File Name: /u01/backupset/2019_02_21/o1_mf_nnndf_TAG20190221T112928_g6w6rrhr_.bkp

 File Name: /u01/backupset/2019_02_21/o1_mf_ncsnf_TAG20190221T112928_g6w6s8r5_.bkp

 File Name: /u01/backupset/2019_02_21/o1_mf_annnn_TAG20190221T112945_g6w6s9tt_.bkp

　　　　　　02,数据恢复　

　　　　　　 RMAN> restore database;

 RMAN> restore database;

 Starting restore at 21-FEB-19

 using channel ORA_DISK_1

 channel ORA_DISK_1: starting datafile backup set restore

 channel ORA_DISK_1: specifying datafile(s) to restore from backup set

 channel ORA_DISK_1: restoring datafile 00001 to /u01/app/oracle/oradata/oracle01/system01.dbf

 channel ORA_DISK_1: restoring datafile 00002 to /u01/app/oracle/oradata/oracle01/sysaux01.dbf

 channel ORA_DISK_1: restoring datafile 00003 to /u01/app/oracle/oradata/oracle01/undotbs01.dbf

 channel ORA_DISK_1: restoring datafile 00004 to /u01/app/oracle/oradata/oracle01/users01.dbf

 channel ORA_DISK_1: restoring datafile 00005 to /u01/app/oracle/oradata/oracle01/example01.dbf

 channel ORA_DISK_1: reading from backup piece /u01/backupset/2019_02_21/o1_mf_nnndf_TAG20190221T112928_g6w6rrhr_.bkp

 channel ORA_DISK_1: ORA-19870: error while restoring backup piece /u01/backupset/2019_02_21/o1_mf_nnndf_TAG20190221T112928_g6w6rrhr_.bkp

 ORA-19504: failed to create file "/u01/app/oracle/oradata/oracle01/system01.dbf"

 ORA-27040: file create error, unable to create file

 Linux-x86_64 Error: 2: No such file or directory

 Additional information: 1

 failover to previous backup

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

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

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

 RMAN-03002: failure of restore command at 02/21/2019 11:52:24

 RMAN-06026: some targets not found - aborting restore

 RMAN-06023: no backup or copy of datafile 5 found to restore

 RMAN-06023: no backup or copy of datafile 4 found to restore

 RMAN-06023: no backup or copy of datafile 3 found to restore

 RMAN-06023: no backup or copy of datafile 2 found to restore

 RMAN-06023: no backup or copy of datafile 1 found to restore

 RMAN> restore database ;

 Starting restore at 21-FEB-19

 using channel ORA_DISK_1

 channel ORA_DISK_1: starting datafile backup set restore

 channel ORA_DISK_1: specifying datafile(s) to restore from backup set

 channel ORA_DISK_1: restoring datafile 00001 to /u01/app/oracle/oradata/oracle01/system01.dbf

 channel ORA_DISK_1: restoring datafile 00002 to /u01/app/oracle/oradata/oracle01/sysaux01.dbf

 channel ORA_DISK_1: restoring datafile 00003 to /u01/app/oracle/oradata/oracle01/undotbs01.dbf

 channel ORA_DISK_1: restoring datafile 00004 to /u01/app/oracle/oradata/oracle01/users01.dbf

 channel ORA_DISK_1: restoring datafile 00005 to /u01/app/oracle/oradata/oracle01/example01.dbf

 channel ORA_DISK_1: reading from backup piece /u01/backupset/2019_02_21/o1_mf_nnndf_TAG20190221T112928_g6w6rrhr_.bkp

 channel ORA_DISK_1: piece handle=/u01/backupset/2019_02_21/o1_mf_nnndf_TAG20190221T112928_g6w6rrhr_.bkp tag=TAG20190221T112928

 channel ORA_DISK_1: restored backup piece 1

 channel ORA_DISK_1: restore complete, elapsed time: 00:00:07

 Finished restore at 21-FEB-19

　　　　　　03,数据库状态

四,DG 测试

　　　　01,测试一

 SQL> col dest_name format a30

 SQL> col error format a20

 SQL> select dest_name,error from v$archive_dest;

 DEST_NAME               ERROR

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

 LOG_ARCHIVE_DEST_1

 LOG_ARCHIVE_DEST_2

 LOG_ARCHIVE_DEST_3

 LOG_ARCHIVE_DEST_4

 LOG_ARCHIVE_DEST_5

 LOG_ARCHIVE_DEST_6

 LOG_ARCHIVE_DEST_7

 LOG_ARCHIVE_DEST_8

 LOG_ARCHIVE_DEST_9

 LOG_ARCHIVE_DEST_10

 LOG_ARCHIVE_DEST_11

 DEST_NAME               ERROR

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

 LOG_ARCHIVE_DEST_12

 LOG_ARCHIVE_DEST_13

 LOG_ARCHIVE_DEST_14

 LOG_ARCHIVE_DEST_15

 LOG_ARCHIVE_DEST_16

 LOG_ARCHIVE_DEST_17

 LOG_ARCHIVE_DEST_18

 LOG_ARCHIVE_DEST_19

 LOG_ARCHIVE_DEST_20

 LOG_ARCHIVE_DEST_21

 LOG_ARCHIVE_DEST_22

 DEST_NAME               ERROR

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

 LOG_ARCHIVE_DEST_23

 LOG_ARCHIVE_DEST_24

 LOG_ARCHIVE_DEST_25

 LOG_ARCHIVE_DEST_26

 LOG_ARCHIVE_DEST_27

 LOG_ARCHIVE_DEST_28

 LOG_ARCHIVE_DEST_29

 LOG_ARCHIVE_DEST_30

 LOG_ARCHIVE_DEST_31

 STANDBY_ARCHIVE_DEST

 32 rows selected.

　　　　测试,主库查看最大归档序号

　　　　　　主SQL> select max(sequence#) from v$archived_log;

　　　　　　MAX(SEQUENCE#)
　　　　　　--------------
　　　　13
　　　　　　从SQL> select max(sequence#) from v$archived_log;

　　　　　　　MAX(SEQUENCE#)
　　　　　　　--------------
　　　　 13
　　　　　　
　　　　　　主库日志切换:

　　　　 alter system archive log current; 　　

　　　　　　再次查看主从库一样则成功

　　　two.测试2

　　　　　　主库操作　　　

[oracle@oracle01 ~]$ sqlplus / as sysdba
 1 SQL> create table dg(id number);

 Table created.

 SQL> insert into dg values(1);

 1 row created.

 SQL> commit;

 Commit complete.

 SQL> select * from dg;

     ID

 ----------

      1

　　　　　从库操作

[oracle@standby ~]$ sqlplus / as sysdba

SQL> select * from dg;

    ID

----------

     1

　　　　　测试成功

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oracle 单实例DG(配置篇二)

一,DG搭建实例--主库配置

one : 归档配置

01,查看归档

02,开启归档

03,改成归档模式和强制 logging

04,改变归档目录

05,创建pfile文件

two.设置闪回-flashback

01,查看是否开启:

02, 设置闪回路径

03,设置闪回大小

04,关闭数据库重新启动

05,验证数据

three.添加standby日志

01,查看主库在线日志大小和主数

02,查看备库在线日志大小和主数

03,创建

04,再次查看备库的时候发现:

four.主库修改参数文件

five.修改配置文件

01, listener.ora

02, tnsnames.ora

03,重启监听

six.文件传输

二,DG搭建实例--从库配置

one.配置文件修改

01,配置文件重命名

02,改配置文件

03,创建必要的目录

two.从库配置文件更新

01, listener.ora

02, tnsnames.ora

03, 重启监听服务器

04,启动从库为nomount

three.验证监听

01.两端的数据库都需要执行

三,rman数据备份与恢复

one.主库备份数据

two.从库数据恢复

01,注册恢复地址

02,数据恢复

03,数据库状态

四,DG 测试

01,测试一

two.测试2

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　　one : 归档配置

　　　 01,查看归档

　　　　　02,开启归档

　　　　　　03,改成归档模式和强制 logging

　　　　　　04,改变归档目录　

　　　　05,创建pfile文件　

　　two.设置闪回-flashback

　　　　01,查看是否开启:

　　　　02, 设置闪回路径

　　　　03,设置闪回大小

　　　　04,关闭数据库重新启动

　　　　 05,验证数据

　　three.添加standby日志

　　　　　01,查看主库在线日志大小和主数

　　　　 02,查看备库在线日志大小和主数

　　　　　03,创建

　　　　　 04,再次查看备库的时候发现:

　　　four.主库修改参数文件

　　five.修改配置文件

　　　　　　01, listener.ora

　　　　　　 02, tnsnames.ora

　　　　　03,重启监听

　　six.文件传输

　　one.配置文件修改

　　　　01,配置文件重命名

　　　　02,改配置文件

　　　　03,创建必要的目录

　　　two.从库配置文件更新

　　　　01,　listener.ora

　　　　02, tnsnames.ora

　　　　03, 重启监听服务器

　　　　04,启动从库为nomount

　　three.验证监听

　　　　　　01.两端的数据库都需要执行

　　 one.主库备份数据

　　 two.从库数据恢复

　　　　　　01,注册恢复地址

　　　　　　02,数据恢复　

　　　　　　03,数据库状态

　　　　01,测试一

　　　two.测试2