Oracle 11G使用DG Broker创建DataGuard

Oracle 11G使用DG Broker创建DataGuard

1.环境:

a.主机环境:CentOS6.5

b.软件环境:oracle 11.2.0.4

c.主机信息:

DG1:192.168.100.51(数据库sid:atest)

DG2:192.168.100.52

2.前提工作(主从都要设置):

a.关闭防火墙:/etc/init.d/iptables stop

b.关闭selinux:setenforce 0

查看状态:getenforce(关闭状态:Permissive)

3.3.主库设置:

a.设置主库db_unique_name:

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

b.设置主库为强制记录日志:

alter database force logging;

检查状态(YEs为强制):

select name,force_logging from v$database;

c.设置standy_file_management:

alter system set standby_file_management ='AUTO';

d.创建standbylog:

alter database add standby logfile group  11 '/u01/app/oracle/oradata/ATEST/standbylog/standby11.log' size 50m;
alter database add standby logfile group  12 '/u01/app/oracle/oradata/ATEST/standbylog/standby12.log' size 50m;
alter database add standby logfile group  13 '/u01/app/oracle/oradata/ATEST/standbylog/standby13.log' size 50m;
alter database add standby logfile group  14 '/u01/app/oracle/oradata/ATEST/standbylog/standby14.log' size 50m;

e.开启归档(简单不详述):

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

f.开启DGbroker:

alter system set DG_BROKER_START=TRUE;

g.传输pfile和密码文件:

 create pfile from spfile;
 scp initatest.ora orapwatest 192.168.100.52:/u01/app/oracle/product/11.2.0/db1/dbs/

h.设置监听:atest,patest,patest_DGMGRL

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (GLOBAL_DBNAME = atest)
      (ORACLE_HOME = /u01/app/oracle/product/11.2.0/db1)
      (SID_NAME = atest)
    )
    (SID_DESC =
      (GLOBAL_DBNAME = patest)
      (ORACLE_HOME = /u01/app/oracle/product/11.2.0/db1)
      (SID_NAME = atest)
    )
    (SID_DESC =
      (GLOBAL_DBNAME = patest_DGMGRL)
      (ORACLE_HOME = /u01/app/oracle/product/11.2.0/db1)
      (SID_NAME = atest)
    )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = vijay01.database.com)(PORT = 1521))
    )
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    )
  )

ADR_BASE_LISTENER = /u01/app/oracle

i.设置tnsnames.ora

ATEST =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.100.51)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = atest)
    )
  )


PATEST =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.100.51)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = atest)
    )
  )

SATEST =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.100.52)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = atest)
    )
  )

4.备库设置:

a.设置监听:atest,satest,satest_DGMGRL

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (GLOBAL_DBNAME = atest)
      (ORACLE_HOME = /u01/app/oracle/product/11.2.0/db1)
      (SID_NAME = atest)
    )
    (SID_DESC =
      (GLOBAL_DBNAME = satest)
      (ORACLE_HOME = /u01/app/oracle/product/11.2.0/db1)
      (SID_NAME = atest)
    )
    (SID_DESC =
      (GLOBAL_DBNAME = satest_DGMGRL)
      (ORACLE_HOME = /u01/app/oracle/product/11.2.0/db1)
      (SID_NAME = atest)
    )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = vijay02.database.com)(PORT = 1521))
    )
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    )
  )

ADR_BASE_LISTENER = /u01/app/oracle

b.设置tnsnames.ora

ATEST =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.100.52)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = atest)
    )
  )


SATEST =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.100.52)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = atest)
    )
  )

PATEST =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.100.51)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = atest)
    )
  )

5.备份主库:

a.rman target /

b.backup database;

6.在备库上克隆主库:

a.修改备库pfile上的db_unique_name=satest

b.启动数据库到nomount:

startup nomount

c.登陆rman:

rman target sys/123456@patest auxiliary sys/123456@satest

d.开始克隆:

 duplicate target database for standby nofilenamecheck from active database;

7.设置DGbroker:

a.登陆dgmgrl:

dgmgrl sys/123456@patest

b.设置主库:

create configuration dgc as primary database is patest connect identifier is patest;

c.添加备库:

add database satest as connect identifier is satest maintained as physical;

d.启用配置文件:

enable configuration

e.查看DGbroker配置:

show configuration [verbose];

show database [verbose] 'satest';

show database 'patest''StatusReport';

f.查看数据库的DG状态:

SELECT GROUP#,dbid,archived,status from v$standby_log;

select dest_id,valid_type,valid_role,valid_now from v$archive_dest;

select process,status,group#,thread#,sequence# from v$managed_standby order by process,group#,thread#,sequence#;

select name,value,time_computed from v$dataguard_stats;

select timestamp,facility,dest_id,message_num,error_code,message from v$dataguard_status order by timestamp;

select recid,archived,applied from v$archived_log;

8.DG不同步检查步骤:

1.检查密码文件
2.检查网络
3.检查参数文件
4.检查防火墙或selinux
5.如以上均无问题,只能说明dg环境有问题,需要重新搭建dg(重新传输数据文件到主库,在重新同步)

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