‘dg_broker_start’ 是否开启

standby logfile 主备是否都配置 

查看参数

SQL> show parameter dg_

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
dg_broker_config_file1               string      /u01/app/oracle/product/11.2.0
                                                 /dbhome_1/dbs/dr1ENMOEDU.dat
dg_broker_config_file2               string      /u01/app/oracle/product/11.2.0
                                                 /dbhome_1/dbs/dr2ENMOEDU.dat
dg_broker_start                      boolean     FALSE

未开启

我们开启参数 

SQL> alter system set dg_broker_start = true scope=both；
System altered.

SQL> show parameter dg_broker
NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
dg_broker_config_file1               string      /u01/app/oracle/product/11.2.0
                                                 /dbhome_1/dbs/dr1ENMOEDU.dat
dg_broker_config_file2               string      /u01/app/oracle/product/11.2.0
                                                 /dbhome_1/dbs/dr2ENMOEDU.dat
dg_broker_start                      boolean     TRUE

我们查询我们的standby 日志组 

SQL> select * from v$standby_log;

no rows selected

主库添加四组 standby log 

SQL> alter database add standby logfile group 4 ('/u01/app/oracle/oradata/ENMOEDU/standby04.log') size 50m;
Database altered.
SQL> alter database add standby logfile group 5('/u01/app/oracle/oradata/ENMOEDU/standby05.log') size 50m;
Database altered.
SQL> alter database add standby logfile group 6('/u01/app/oracle/oradata/ENMOEDU/standby06.log') size 50m;
Database altered.
SQL> alter database add standby logfile group 7('/u01/app/oracle/oradata/ENMOEDU/standby07.log') size 50m;
Database altered.

再次验证

SQL> select GROUP#,STATUS from v$standby_log;

    GROUP# STATUS
---------- ----------
         4 UNASSIGNED
         5 UNASSIGNED
         6 UNASSIGNED
         7 UNASSIGNED

进入到 broker 连接主库 

[oracle@enmo1 dbs]$ dgmgrl
DGMGRL for Linux: Version 11.2.0.3.0 - Production
Copyright (c) 2000, 2009, Oracle. All rights reserved.
Welcome to DGMGRL, type "help" for information.

DGMGRL> connect sys/oracle@ENMOEDU;
Connected.

创建 broker 

DGMGRL> CREATE CONFIGURATION DF AS
> PRIMARY DATABASE IS ENMOEDU
> CONNECT IDENTIFIER IS ORA11GR2;

把备库添加

DGMGRL> add database ORA11GR2 AS
> CONNECT IDENTIFIER IS ORA11GR2;
Database "ora11gr2" added

激活 broker 

DGMGRL> ENABLE CONFIGURATION;
Enabled.

DGMGRL> SHOW CONFIGURATION;

Configuration - df

  Protection Mode: MaxPerformance
  Databases:
    enmoedu  - Primary database
    ora11gr2 - Physical standby database
      Error: ORA-16525: the Data Guard broker is not yet available

Fast-Start Failover: DISABLED

Configuration Status:
ERROR

查看状态时  报错 警告 

此时呢就是我们的 备库的   dg_broker_start  状态不是 ture 

SQL> show parameter dg_

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
dg_broker_config_file1               string      /u01/app/oracle/product/11.2.0
                                                 /dbhome_1/dbs/dr1ORA11GR2.dat
dg_broker_config_file2               string      /u01/app/oracle/product/11.2.0
                                                 /dbhome_1/dbs/dr2ORA11GR2.dat
dg_broker_start                      boolean     FALSE

打开为ture 
SQL> alter system set dg_broker_start=true;

System altered.
再次查询 

DGMGRL> show configuration;

Configuration - df

  Protection Mode: MaxPerformance
  Databases:
    enmoedu  - Primary database
    ora11gr2 - Physical standby database

Fast-Start Failover: DISABLED

Configuration Status:
ORA-16610: command "ENABLE DATABASE ora11gr2" in progress
DGM-17017: unable to determine configuration status

此时是我们备库的standby 日志没有添加 

在备库添加 standby log  注意一定停止我们的 recover 动作

SQL> alter database recover managed standby database cancel;
Database altered.
SQL>  alter database add standby logfile group 4('/u01/app/oracle/oradata/ORA11GR2/standby04.log') size 50m;
Database altered.
SQL> alter database add standby logfile group 5('/u01/app/oracle/oradata/ORA11GR2/standby05.log') size 50m;
Database altered.
SQL> altr database add standby logfile group 6('/u01/app/oracle/oradata/ORA11GR2/standby06.log') size 50m;
Database altered.
SQL> alter database add standby logfile group 7('/u01/app/oracle/oradata/ORA11GR2/standby07.log') size 50m;
Database altered.

再次查询 

DGMGRL> show configuration verbose;

Configuration - sdf

  Protection Mode: MaxAvailability
  Databases:
    enmoedu  - Primary database
    ora11gr2 - Physical standby database

  Properties:
    FastStartFailoverThreshold      = '30'
    OperationTimeout                = '30'
    FastStartFailoverLagLimit       = '30'
    CommunicationTimeout            = '180'
    FastStartFailoverAutoReinstate  = 'TRUE'
    FastStartFailoverPmyShutdown    = 'TRUE'
    BystandersFollowRoleChange      = 'ALL'

Fast-Start Failover: DISABLED

Configuration Status:
SUCCESS

以上就是我们搭建的 broker