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

 1 [root@standby dbs]# pwd
 2 /u01/app/oracle/product/11.2.0/db_1/dbs
 3 [root@standby dbs]# cat initstandby.ora
 4 *.audit_file_dest='/u01/app/oracle/admin/standby/adump'
 5 *.audit_trail='db'
 6 *.compatible='11.2.0.4.0'
 7 *.control_files='/u01/oracle/standby.ctl'
 8 *.db_block_size=8192
 9 *.db_domain='localdomain'
10 *.db_file_name_convert='/u01/oracle/datafile','/u01/oracle/datafile'
11 *.db_name='oracle01'
12 *.db_recovery_file_dest='/u01/oracle'
13 *.db_recovery_file_dest_size=5368709120
14 *.db_unique_name='standby'
15 *.diagnostic_dest='/u01/app/oracle'
16 *.dispatchers='(PROTOCOL=TCP) (SERVICE=oracle01XDB)'
17 *.fal_server='oracle01'
18 *.fal_client='standby'
19 *.log_archive_config='DG_CONFIG=(oracle01,standby)'
20 *.log_archive_dest_1='location=/u01/oracle/archivelog'
21 *.log_archive_dest_2='SERVICE=oracle01 VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=oracle01'
22 *.log_archive_dest_state_1='enable'
23 *.log_archive_dest_state_2='enable'
24 *.log_file_name_convert='/u01/oracle/onlinelog','/u01/oracle/onlinelog'
25 *.open_cursors=300
26 *.pga_aggregate_target=836763648
27 *.processes=150
28 *.remote_login_passwordfile='EXCLUSIVE'
29 *.sga_target=2510290944
30 *.standby_file_management='AUTO'
31 *.undo_tablespace='UNDOTBS1'

View Code

　　　　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

oracle 单实例DG(双机配置篇)