[terry笔记]11gR2_DataGuard搭建

11gR2搭建dataguard环境：

自己做的实验，后续按照rman模式搭建、主备切换、模式调整等实验会陆续发上来。

primary：

OS:oel 6.4

database:11.2.0.4.0

192.168.100.131

hostname=node4

ORACLE_SID=good

ORACLE_HOME=/u01/product/11.2.0

db_unique_name=good

standby：

OS:oel 6.4

database:11.2.0.4.0

192.168.100.132

ORACLE_SID=good

ORACLE_HOME=/u01/product/11.2.0

db_unique_name=bad

两边oracle用户的环境变量：

export ORACLE_BASE=/u01

export ORACLE_HOME=$ORACLE_BASE/product/11.2.0

export ORACLE_SID=good

export PATH=$PATH:$HOME/bin:$ORACLE_HOME/bin

export LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib

alias s='sqlplus / as sysdba'

1.primary打开force logging和归档:

alter database force logging;

startup mount;

alter database archivelog;

alter database open;

2.配置primary参数，并添加standby logfile,以用来将来主备切换

alter system set db_unique_name=good scope=spfile;

alter system set log_archive_config= 'DG_CONFIG=(good,bad)' scope=spfile;

alter system set log_archive_dest_1= 'LOCATION=/u01/arch VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=good' scope=spfile;

alter system set log_archive_dest_2= 'SERVICE=bad LGWR SYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=bad' scope=spfile;

alter system set log_archive_dest_state_1 = enable;

alter system set log_archive_dest_state_2 = enable;

alter system set fal_server=bad scope=spfile;

alter system set fal_client=good scope=spfile;

alter system set standby_file_management=AUTO scope=spfile;

alter database add standby logfile

group 4 ('/u01/oradata/good/standby04.log')size 50m,

group 5 ('/u01/oradata/good/standby05.log')size 50m,

group 6 ('/u01/oradata/good/standby06.log')size 50m,

group 7 ('/u01/oradata/good/standby07.log')size 50m;

3.重启一次验证以上修改没问题：

shutdown immeidate

startup

4.创建standby controlfile、pfile

alter database create standby controlfile as '/u01/control01.ctl';

create pfile from spfile;

5.关闭primary

shutdown immediate

6.配置primary的listener.ora、tnsname.ora，listner要用静态监听,传到standby时注意修改host

# listener.ora Network Configuration File: /u01/product/11.2.0/network/admin/listener.ora

# Generated by Oracle configuration tools.

SID_LIST_LISTENER =

  (SID_LIST =

    (SID_DESC =

      (SID_NAME = PLSExtProc)

        (ORACLE_HOME = /u01/product/11.2.0)

          (PROGRAM = extproc)

    )

    (SID_DESC =

      (GLOBAL_DBNAME = good)

        (ORACLE_HOME = /u01/product/11.2.0)

      (SID_NAME = good)

  )

)

LISTENER =

  (DESCRIPTION_LIST =

    (DESCRIPTION =

      (ADDRESS = (PROTOCOL = TCP)(HOST = localhost.localdomain)(PORT = 1521))

      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))

    )

  )

ADR_BASE_LISTENER = /u01

# tnsnames.ora Network Configuration File: /u01/product/11.2.0/network/admin/tnsnames.ora

# Generated by Oracle configuration tools.

GOOD =

  (DESCRIPTION =

    (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.100.131)(PORT = 1521))

    (CONNECT_DATA =

      (SERVER = DEDICATED)

      (SERVICE_NAME = good)

    )

  )

BAD =

  (DESCRIPTION =

    (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.100.132)(PORT = 1521))

    (CONNECT_DATA =

      (SERVER = DEDICATED)

      (SERVICE_NAME = good)

    )

  )

7.copy file to standby

监听文件：listener.ora、tnsnames.ora --$ORACLE_HOME/network/admin

参数文件：initgood.ora  --$ORACLE_HOME/dbs

密码文件：orapwgood  --$ORACLE_HOME/dbs

standby控制文件：control01.ctl  --$ORACLE_BASE/oradata/good

全库备份文件：*.dbf、*.log  --$ORACLE_BASE/oradata/good

日志目录（或直接创建文件夹）：$ORACLE_BASE/admin、$ORACLE_BASE/diag、$ORACLE_BASE/flash_recovery_area

8.修改standby参数文件，蓝色标注的需要重点关注

good.__db_cache_size=222298112

good.__java_pool_size=4194304

good.__large_pool_size=8388608

good.__oracle_base='/u01'#ORACLE_BASE set from environment

good.__pga_aggregate_target=192937984

good.__sga_target=360710144

good.__shared_io_pool_size=0

good.__shared_pool_size=113246208

good.__streams_pool_size=0

*.audit_file_dest='/u01/admin/good/adump'

*.audit_trail='db'

*.compatible='11.2.0.4.0'

*.control_files='/u01/oradata/good/control01.ctl'

*.db_block_size=8192

*.db_domain=''

*.db_name='good'

*.db_recovery_file_dest='/u01/fast_recovery_area'

*.db_recovery_file_dest_size=4385144832

*.db_unique_name='bad'

*.diagnostic_dest='/u01'

*.dispatchers='(PROTOCOL=TCP) (SERVICE=goodXDB)'

*.fal_client='bad'

*.fal_server='good'

*.log_archive_config='dg_config=(good,bad)'

*.log_archive_dest_1='location=/u01/arch valid_for=(all_logfiles,all_roles) db_unique_name=bad'

*.log_archive_dest_2='service=good lgwr sync valid_for=(online_logfiles,primary_role) db_unique_name=good'

*.log_archive_dest_state_1='ENABLE'

*.log_archive_dest_state_2='ENABLE'

*.memory_target=550502400

*.open_cursors=300

*.processes=150

*.remote_login_passwordfile='EXCLUSIVE'

*.standby_file_management='AUTO'

*.undo_tablespace='UNDOTBS1'

9.启动两边监听

lsnrctl start

此时可以测试两边是否连通

sqlplus sys/xxx@good as sysdba

sqlplus sys/xxx@bad as sysdba

tnsping good

tnsping bad
select * from v$instance;

10.standby启动至mount并应用日志

startup mount;

alter database recover managed standby database using current logfile disconnect from session;

11.primary启动

startup

12.验证

观察primary与standby的/u01/arch,当primary切换时，standby的归档也会增加。

primary:
alter system switch logfile;

SELECT STATUS,DESTINATION, ERROR FROM V$ARCHIVE_DEST;

select max(sequence#) from v$archived_log; --主备结果一致

13.standby启动read only with apply,此时可以查询standby库同时可以从primary恢复（此为11g特性，10g如果read only打开standby库，不可以同时恢复）

alter database recover managed standby database cancel;

alter database open;

alter database recover managed standby database using current logfile disconnect from session;

select open_mode from v$database;

dataguard启动与关闭顺序：

启动:先standby后primary

关闭:先primary后standby

巴特西

[terry笔记]11gR2_DataGuard搭建_拷贝数据文件

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