Oracle11g 配置DG broker
在配置DG broker之前需要確保Dataguard配置正常且主庫和備庫均使用spfile.
1. 主庫配置
- 配置DG_BROKER_START引數
檢查主庫dg_broker_start設定
SQL> show parameter dg_broker_start;
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
dg_broker_start boolean FALSE
啟用dg_broker_start，啟用後oracle會自動啟動一個dmon程序
SQL> alter system set dg_broker_start = true;
System altered.
- 在監聽檔案中加入DGMGRL靜態監聽
修改listener.ora檔案，加入DGMGRL靜態監聽:SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = ora11db)
(ORACLE_HOME = /app/oracle/product/11.2.0/dbhome_1)
(SID_NAME = ora11db)
)
(SID_DESC =
(GLOBAL_DBNAME = ora11db_DGMGRL)
(ORACLE_HOME = /app/oracle/product/11.2.0/dbhome_1)
(SID_NAME = ora11db)
)
)
重啟監聽$> lsnrctl reload
2. 備庫配置
- 配置DG_BROKER_START引數
檢查主庫dg_broker_start設定
SQL> show parameter dg_broker_start;
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
dg_broker_start boolean FALSE
啟用dg_broker_start，啟用後oracle會自動啟動一個dmon程序
SQL> alter system set dg_broker_start = true;
System altered.
- 在監聽檔案中加入DGMGRL靜態監聽
修改listener.ora檔案，加入DGMGRL靜態監聽:
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = ora11sty)
(ORACLE_HOME = /app/oracle/product/11.2.0/dbhome_1)
(SID_NAME = ora11sty)
)
(SID_DESC =
(GLOBAL_DBNAME = ora11sty_DGMGRL)
(ORACLE_HOME = /app/oracle/product/11.2.0/dbhome_1)
(SID_NAME = ora11sty)
)
)
重啟監聽：
$> lsnrctl reload
3.配置broker
- 建立dg broker
啟動dgmgrl命令列
[email protected]a11g:~ $> dgmgrl sys/manager
DGMGRL for Solaris: Version 11.2.0.1.0 - 64bit Production
Copyright (c) 2000, 2009, Oracle. All rights reserved.
Welcome to DGMGRL, type "help" for information.
Connected.
建立dg broker配置
DGMGRL> create configuration 'DGORA11G' as primary database is 'ora11db' connect identifier is ora11db;
Configuration "DGORA11G" created with primary database "ora11db"
顯示配置資訊
DGMGRL> show configuration
Configuration - DGORA11G
Protection Mode: MaxPerformance
Databases:
ora11db - Primary database
Fast-Start Failover: DISABLED
Configuration Status:
DISABLED
- 增加備庫設定
增加備庫
DGMGRL> add database 'ora11sty' as connect identifier is 'ora11sty' maintained as physical;
Database "ora11sty" added
顯示配置
DGMGRL> show configuration
Configuration - DGORA11G
Protection Mode: MaxPerformance
Databases:
ora11db - Primary database
ora11sty - Physical standby database
Fast-Start Failover: DISABLED
Configuration Status:
DISABLED
- enable配置
啟用配置
DGMGRL> enable configuration
Enabled.
顯示配置
DGMGRL> show configuration
Configuration - DGORA11G
Protection Mode: MaxPerformance
Databases:
ora11db - Primary database
ora11sty - Physical standby database
Fast-Start Failover: DISABLED
Configuration Status:
SUCCESS
4. 測試switchover
DGMGRL> switchover to ora11sty
Performing switchover NOW, please wait...
New primary database "ora11sty" is opening...
Operation requires shutdown of instance "ora11db" on database "ora11db"
Shutting down instance "ora11db"...
ORA-01109: database not open
Database dismounted.
ORACLE instance shut down.
Operation requires startup of instance "ora11db" on database "ora11db"
Starting instance "ora11db"...
ORACLE instance started.
Database mounted.
Switchover succeeded, new primary is "ora11sty"