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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

　　　　 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'

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　　　　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

 1 [root@standby ~]# cat /u01/app/oracle/product/11.2.0/db_1/network/admin/listener.ora
 2 SID_LIST_LISTENER =
 3 
 4  (SID_LIST =
 5 
 6    (SID_DESC =
 7 
 8      (GLOBAL_DBNAME = standby)
 9 
10      (ORACLE_HOME = /u01/app/oracle/product/11.2.0/db_1)
11 
12      (SID_NAME = standby)
13 
14     )
15 
16    )
17 STENER =
18 
19  (DESCRIPTION_LIST =
20 
21    (DESCRIPTION =
22 
23      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.16)(PORT = 1521))
24 
25     )
26 
27   )
28 ADR_BASE_LISTENER = /u01/app/oracle

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　　　　02, tnsnames.ora

 1 [root@standby ~]# cat /u01/app/oracle/product/11.2.0/db_1/network/admin/
 2 listener.ora      samples/          shrept.lst        tnsnames.ora      tnsnames.ora.bak
 3 [root@standby ~]# cat /u01/app/oracle/product/11.2.0/db_1/network/admin/tnsnames.ora
 4 # tnsnames.ora Network Configuration File: /u01/app/oracle/product/11.2.0/db_1/network/admin/tnsnames.ora
 5 # Generated by Oracle configuration tools.
 6 
 7 ORACLE01 =
 8   (DESCRIPTION =
 9     (ADDRESS_LIST =
10       (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.10)(PORT = 1521))
11     )
12     (CONNECT_DATA =
13       (SERVICE_NAME = oracle01)
14     )
15   )
16 
17 STANDBY =
18   (DESCRIPTION =
19     (ADDRESS_LIST =
20       (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.0.16)(PORT = 1521))
21     )
22     (CONNECT_DATA =
23       (SERVICE_NAME = standby)
24     )
25   )

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　　　　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

 1 [oracle@oracle01 ~]$ sqlplus sys/123456@standby as sysdba
 2 
 3 SQL*Plus: Release 11.2.0.4.0 Production on Thu Feb 21 11:43:14 2019
 4 
 5 Copyright (c) 1982, 2013, Oracle.  All rights reserved.
 6 
 7 
 8 Connected to:
 9 Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
10 With the Partitioning, OLAP, Data Mining and Real Application Testing options
11 
12 SQL> exit
13 Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
14 With the Partitioning, OLAP, Data Mining and Real Application Testing options
15 
16 
17 
18 [oracle@oracle01 ~]$ sqlplus sys/123456@oracle01 as sysdba
19 
20 SQL*Plus: Release 11.2.0.4.0 Production on Thu Feb 21 13:04:26 2019
21 
22 Copyright (c) 1982, 2013, Oracle.  All rights reserved.
23 
24 
25 Connected to:
26 Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
27 With the Partitioning, OLAP, Data Mining and Real Application Testing options
28 
29 SQL> exit
30 Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
31 With the Partitioning, OLAP, Data Mining and Real Application Testing options

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从库执行结果

 1 [oracle@standby ~]$ sqlplus sys/123456@oracle01 as sysdba
 2 
 3 SQL*Plus: Release 11.2.0.4.0 Production on Thu Feb 21 13:06:18 2019
 4 
 5 Copyright (c) 1982, 2013, Oracle.  All rights reserved.
 6 
 7 
 8 Connected to:
 9 Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
10 With the Partitioning, OLAP, Data Mining and Real Application Testing options
11 
12 SQL> exit
13 Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
14 With the Partitioning, OLAP, Data Mining and Real Application Testing options
15 [oracle@standby ~]$
16 [oracle@standby ~]$ sqlplus sys/123456@standby as sysdba
17 
18 SQL*Plus: Release 11.2.0.4.0 Production on Thu Feb 21 13:06:24 2019
19 
20 Copyright (c) 1982, 2013, Oracle.  All rights reserved.
21 
22 
23 Connected to:
24 Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
25 With the Partitioning, OLAP, Data Mining and Real Application Testing options
26 
27 SQL> exit
28 Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
29 With the Partitioning, OLAP, Data Mining and Real Application Testing options
30 [oracle@standby ~]$

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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';　

 1 RMAN> catalog start with '/u01/backupset/2019_02_21';
 2 
 3 searching for all files that match the pattern /u01/backupset/2019_02_21
 4 
 5 List of Files Unknown to the Database
 6 =====================================
 7 File Name: /u01/backupset/2019_02_21/o1_mf_annnn_TAG20190221T112927_g6w6rq89_.bkp
 8 File Name: /u01/backupset/2019_02_21/o1_mf_nnndf_TAG20190221T112928_g6w6rrhr_.bkp
 9 File Name: /u01/backupset/2019_02_21/o1_mf_ncsnf_TAG20190221T112928_g6w6s8r5_.bkp
10 File Name: /u01/backupset/2019_02_21/o1_mf_annnn_TAG20190221T112945_g6w6s9tt_.bkp
11 
12 Do you really want to catalog the above files (enter YES or NO)? yes
13 cataloging files...
14 cataloging done
15 
16 List of Cataloged Files
17 =======================
18 File Name: /u01/backupset/2019_02_21/o1_mf_annnn_TAG20190221T112927_g6w6rq89_.bkp
19 File Name: /u01/backupset/2019_02_21/o1_mf_nnndf_TAG20190221T112928_g6w6rrhr_.bkp
20 File Name: /u01/backupset/2019_02_21/o1_mf_ncsnf_TAG20190221T112928_g6w6s8r5_.bkp
21 File Name: /u01/backupset/2019_02_21/o1_mf_annnn_TAG20190221T112945_g6w6s9tt_.bkp

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　　　　　　02,数据恢复　

　　　　　　 RMAN> restore database;

 1 RMAN> restore database;
 2 
 3 Starting restore at 21-FEB-19
 4 using channel ORA_DISK_1
 5 
 6 channel ORA_DISK_1: starting datafile backup set restore
 7 channel ORA_DISK_1: specifying datafile(s) to restore from backup set
 8 channel ORA_DISK_1: restoring datafile 00001 to /u01/app/oracle/oradata/oracle01/system01.dbf
 9 channel ORA_DISK_1: restoring datafile 00002 to /u01/app/oracle/oradata/oracle01/sysaux01.dbf
10 channel ORA_DISK_1: restoring datafile 00003 to /u01/app/oracle/oradata/oracle01/undotbs01.dbf
11 channel ORA_DISK_1: restoring datafile 00004 to /u01/app/oracle/oradata/oracle01/users01.dbf
12 channel ORA_DISK_1: restoring datafile 00005 to /u01/app/oracle/oradata/oracle01/example01.dbf
13 channel ORA_DISK_1: reading from backup piece /u01/backupset/2019_02_21/o1_mf_nnndf_TAG20190221T112928_g6w6rrhr_.bkp
14 channel ORA_DISK_1: ORA-19870: error while restoring backup piece /u01/backupset/2019_02_21/o1_mf_nnndf_TAG20190221T112928_g6w6rrhr_.bkp
15 ORA-19504: failed to create file "/u01/app/oracle/oradata/oracle01/system01.dbf"
16 ORA-27040: file create error, unable to create file
17 Linux-x86_64 Error: 2: No such file or directory
18 Additional information: 1
19 
20 failover to previous backup
21 
22 RMAN-00571: ===========================================================
23 RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
24 RMAN-00571: ===========================================================
25 RMAN-03002: failure of restore command at 02/21/2019 11:52:24
26 RMAN-06026: some targets not found - aborting restore
27 RMAN-06023: no backup or copy of datafile 5 found to restore
28 RMAN-06023: no backup or copy of datafile 4 found to restore
29 RMAN-06023: no backup or copy of datafile 3 found to restore
30 RMAN-06023: no backup or copy of datafile 2 found to restore
31 RMAN-06023: no backup or copy of datafile 1 found to restore
32 
33 RMAN> restore database ;
34 
35 Starting restore at 21-FEB-19
36 using channel ORA_DISK_1
37 
38 channel ORA_DISK_1: starting datafile backup set restore
39 channel ORA_DISK_1: specifying datafile(s) to restore from backup set
40 channel ORA_DISK_1: restoring datafile 00001 to /u01/app/oracle/oradata/oracle01/system01.dbf
41 channel ORA_DISK_1: restoring datafile 00002 to /u01/app/oracle/oradata/oracle01/sysaux01.dbf
42 channel ORA_DISK_1: restoring datafile 00003 to /u01/app/oracle/oradata/oracle01/undotbs01.dbf
43 channel ORA_DISK_1: restoring datafile 00004 to /u01/app/oracle/oradata/oracle01/users01.dbf
44 channel ORA_DISK_1: restoring datafile 00005 to /u01/app/oracle/oradata/oracle01/example01.dbf
45 channel ORA_DISK_1: reading from backup piece /u01/backupset/2019_02_21/o1_mf_nnndf_TAG20190221T112928_g6w6rrhr_.bkp
46 channel ORA_DISK_1: piece handle=/u01/backupset/2019_02_21/o1_mf_nnndf_TAG20190221T112928_g6w6rrhr_.bkp tag=TAG20190221T112928
47 channel ORA_DISK_1: restored backup piece 1
48 channel ORA_DISK_1: restore complete, elapsed time: 00:00:07
49 Finished restore at 21-FEB-19

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　　　　　　03,数据库状态

四,DG 测试

　　　　01,测试一

 1 SQL> col dest_name format a30
 2 SQL> col error format a20
 3 SQL> select dest_name,error from v$archive_dest;
 4 
 5 DEST_NAME               ERROR
 6 ------------------------------ --------------------
 7 LOG_ARCHIVE_DEST_1
 8 LOG_ARCHIVE_DEST_2
 9 LOG_ARCHIVE_DEST_3
10 LOG_ARCHIVE_DEST_4
11 LOG_ARCHIVE_DEST_5
12 LOG_ARCHIVE_DEST_6
13 LOG_ARCHIVE_DEST_7
14 LOG_ARCHIVE_DEST_8
15 LOG_ARCHIVE_DEST_9
16 LOG_ARCHIVE_DEST_10
17 LOG_ARCHIVE_DEST_11
18 
19 DEST_NAME               ERROR
20 ------------------------------ --------------------
21 LOG_ARCHIVE_DEST_12
22 LOG_ARCHIVE_DEST_13
23 LOG_ARCHIVE_DEST_14
24 LOG_ARCHIVE_DEST_15
25 LOG_ARCHIVE_DEST_16
26 LOG_ARCHIVE_DEST_17
27 LOG_ARCHIVE_DEST_18
28 LOG_ARCHIVE_DEST_19
29 LOG_ARCHIVE_DEST_20
30 LOG_ARCHIVE_DEST_21
31 LOG_ARCHIVE_DEST_22
32 
33 DEST_NAME               ERROR
34 ------------------------------ --------------------
35 LOG_ARCHIVE_DEST_23
36 LOG_ARCHIVE_DEST_24
37 LOG_ARCHIVE_DEST_25
38 LOG_ARCHIVE_DEST_26
39 LOG_ARCHIVE_DEST_27
40 LOG_ARCHIVE_DEST_28
41 LOG_ARCHIVE_DEST_29
42 LOG_ARCHIVE_DEST_30
43 LOG_ARCHIVE_DEST_31
44 STANDBY_ARCHIVE_DEST
45 
46 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:

　　　　 1 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);
 2 
 3 Table created.
 4 
 5 SQL> insert into dg values(1);
 6 
 7 1 row created.
 8 
 9 SQL> commit;
10 
11 Commit complete.
12 
13 SQL> select * from dg;
14 
15     ID
16 ----------
17      1

　　　　　从库操作

[oracle@standby ~]$ sqlplus / as sysdba
SQL> select * from dg;

    ID
----------
     1

　　　　　测试成功

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原文地址：https://www.cnblogs.com/kingle-study/p/10411777.html