ICode9
精准搜索请尝试： 精确搜索
首页
编程语言>
数据库
系统相关
互联网
其他分享
Python
Java
JavaScript
android
PHP
首页 > 其他分享> 文章详细

DG部署

2019-08-09 10:51:35  阅读：318  来源： 互联网

标签：log 部署 DG standby oradata SHPD u01 name


环境：

主机ip dg角色 db_name db_unique_name
192.168.56.110 primary SHPD SHPD
192.168.56.111 standby SHPD SHST

主机必要条件check

select NAME,LOG_MODE,FORCE_LOGGING from v$database;
alter database force logging;

前提

  1. SHPD和SHST都已安装好oracle软件，配置好环境变量，listener.ora，tnsnames.ora

  2. SHPD数据库已创建好，启动到open，SHST启动到nomount

  3. 目录结构同clone db

  4. init.ora也使用clonedb的，db_unique_name需要修改，其余的下面在具体配置

tnsname.ora内容：

shpd =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.56.110)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = SHPD)
)
)

shst =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.56.111)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = SHST)
)
)

配置主库参数

--参数check
col name format a30;
col value format a200;
set linesize 1000;
set pagesize 1000;
select name,value from v$parameter
where name in('fal_server',
'fal_client',
'standby_file_management',
'db_file_name_convert',
'log_file_name_convert',
'db_name',
'db_unique_name',
'log_archive_dest_1',
'log_archive_dest_2',
'log_archive_config')
order by name;
--主备db和log路径转换
select 'datafile',name from v$datafile
union all
select 'tempfile',name from v$tempfile
union all
select 'logifle',member from V$LOGFILE where TYPE='ONLINE';
ALTER SYSTEM SET db_file_name_convert='/u01/oradata/SHST/datafile','/u01/oradata/SHPD/datafile','/u01/oradata/SHST/tempfile','/u01/oradata/SHPD/tempfile' scope=spfile;
ALTER SYSTEM SET log_file_name_convert='/u01/oradata/SHST/onlinefile','/u01/oradata/SHPD/onlinefile' scope=spfile;
ALTER SYSTEM SET log_archive_config='DG_CONFIG=(SHPD,SHST)' SCOPE=BOTH;
ALTER SYSTEM SET log_archive_dest_1='location=/u01/oradata/SHPD/arch valid_for=(all_logfiles,all_roles) db_unique_name=SHPD' SCOPE=BOTH;
ALTER SYSTEM SET log_archive_dest_2='SERVICE=SHST LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=SHST' SCOPE=BOTH;
ALTER SYSTEM SET fal_server='SHST' SCOPE=BOTH;
ALTER SYSTEM SET fal_client='SHPD' SCOPE=BOTH;
ALTER SYSTEM SET standby_file_management=AUTO SCOPE=BOTH;

 

配置从库参数

ALTER SYSTEM SET db_unique_name='SHST' scope=spfile;
ALTER SYSTEM SET db_name='SHPD' scope=spfile;
ALTER SYSTEM SET db_file_name_convert='/u01/oradata/SHPD/datafile','/u01/oradata/SHST/datafile','/u01/oradata/SHPD/tempfile','/u01/oradata/SHST/tempfile' scope=spfile;
ALTER SYSTEM SET log_file_name_convert='/u01/oradata/SHPD/onlinefile','/u01/oradata/SHST/onlinefile' scope=spfile;
ALTER SYSTEM SET log_archive_config='DG_CONFIG=(SHPD,SHST)'  SCOPE=BOTH;
ALTER SYSTEM SET log_archive_dest_1='location=/u01/oradata/SHST/arch valid_for=(all_logfiles,all_roles) db_unique_name=SHST' SCOPE=BOTH;
ALTER SYSTEM SET log_archive_dest_2='SERVICE=SHPD LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=SHPD' SCOPE=BOTH;
ALTER SYSTEM SET fal_server='SHPD' SCOPE=BOTH;
ALTER SYSTEM SET fal_client='SHST' SCOPE=BOTH;
ALTER SYSTEM SET standby_file_management=AUTO SCOPE=BOTH;

添加日志文件

根据primary的online redo log大小和组数，按规则添加Standby online log，添加的group的编号最好有预留，方便扩展

select * from V$LOGFILE;
select * from v$log;
select * from V$STANDBY_LOG;
/*主库添加Standby online log*/
alter database add standby logfile
group 11 '/u01/oradata/SHPD/onlinefile/standbyredo04.log' size 50M,
group 12 '/u01/oradata/SHPD/onlinefile/standbyredo05.log' size 50M,
group 13 '/u01/oradata/SHPD/onlinefile/standbyredo06.log' size 50M,
group 14 '/u01/oradata/SHPD/onlinefile/standbyredo07.log' size 50M;
/*备库添加Standby online log*/
alter database add standby logfile group 10('/u01/app/oracle/oradata/intedb/standby_redo10.log') size 50M;
alter database add standby logfile group 11('/u01/app/oracle/oradata/intedb/standby_redo11.log') size 50M;
alter database add standby logfile group 12('/u01/app/oracle/oradata/intedb/standby_redo12.log') size 50M;
alter database add standby logfile group 13('/u01/app/oracle/oradata/intedb/standby_redo13.log') size 50M;
alter database add standby logfile group 14('/u01/app/oracle/oradata/intedb/standby_redo14.log') size 50M;

备库同步主库数据

生成standby controlfile，并复制到standby目录（忽略）

--ALTER DATABASE CREATE STANDBY CONTROLFILE AS '/tmp/control01.ctl';
--cp /tmp/control01.ctl /tmp/control02.ctl
--scp /tmp/control01.ctl /tmp/control02.ctl oracle@192.168.56.111:/u01/oradata/SHST/controlfile/

Standby数据恢复，Standby上执行

##Method1 在线还原数据，需要配置配置静态监听，STANDBY上执行

rman target sys@SHPD auxiliary sys@SHST
duplicate database for standby from active database nofilenamecheck;

 ##Method2利用备份集，有target连接

先备份，duplicate复制库

rman target sys@SHPD auxiliary /
duplicate target database for standby;

 ##Method3利用备份集，无target连接

先备份，duplicate复制库

rman auxiliary /
duplicate database for standby backup location '/data/backup' nofilenamecheck;
--查看DB状态
select instance_name,status from v$instance;
--打开Standby数据库
alter database open read only;
--开启实时日志应用，启用Real-Time Apply；开启MRP进程，停止redo应用
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE DISCONNECT FROM SESSION;
--关闭MRP进程（停止应用日志），开启redo应用
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL;
--使用arch同步模式
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION;
--验证测试data guard
ALTER SYSTEM ARCHIVE LOG  CURRENT;
select name,controlfile_type,open_mode,protection_mode,
protection_level,database_role,SWITCHOVER_STATUS,db_unique_name,
guard_status,PRIMARY_DB_UNIQUE_NAME
from v$database;
OPEN_MODE
------------------------------------------------------------
READ ONLY WITH APPLY
SELECT * FROM v$dataguard_stats;
SELECT NAME,applied FROM v$archived_log order by COMPLETION_TIME desc;
select * from V$ARCHIVE_DEST;
select * from v$archive_dest_status;
SELECT * FROM v$standby_log;
Note：测试的时候出现了不是实时应用日志，需要手动归档日志后才同步，这一般是standby或primary上的onlinelog或standby log有问题，解决办法是重建日志或scp日志

/*日志传输状态的监控，主库执行，Method1*/
--第一步：在主库执行如下语句获得最新归档序列号
SELECT MAX(SEQUENCE#), THREAD# 
FROM V$ARCHIVED_LOG 
GROUP BY THREAD#;
--第二步：在主库执行确认最新归档的日志是否已经传输至备库
SELECT DESTINATION, STATUS, ARCHIVED_THREAD#, ARCHIVED_SEQ# 
FROM V$ARCHIVE_DEST_STATUS   
WHERE STATUS <> 'DEFERRED' AND STATUS <> 'INACTIVE';

/*日志传输状态的监控，主库执行，Method2*/
select name,dest_id,thread#,sequence#,standby_dest,applied,registrar,completion_time from v$archived_log
where standby_dest='YES';

select 'Primary :' "DB Role",thread#,max(sequence#)
from v$archived_log
where standby_dest='NO'
group by thread#
union
select 'Standby :' "DB Role",thread#,max(sequence#)
from v$archived_log
where standby_dest='YES' and applied='YES'
group by thread#
order by thread#;

 

标签：log,部署,DG,standby,oradata,SHPD,u01,name
来源： https://www.cnblogs.com/guaiguaixiaoqiang/p/11325735.html

本站声明： 1. iCode9 技术分享网（下文简称本站）提供的所有内容，仅供技术学习、探讨和分享；
2. 关于本站的所有留言、评论、转载及引用，纯属内容发起人的个人观点，与本站观点和立场无关；
3. 关于本站的所有言论和文字，纯属内容发起人的个人观点，与本站观点和立场无关；
4. 本站文章均是网友提供，不完全保证技术分享内容的完整性、准确性、时效性、风险性和版权归属；如您发现该文章侵犯了您的权益，可联系我们第一时间进行删除；
5. 本站为非盈利性的个人网站，所有内容不会用来进行牟利，也不会利用任何形式的广告来间接获益，纯粹是为了广大技术爱好者提供技术内容和技术思想的分享性交流网站。

关于我们 | 联系我们 | 留言反馈

专注分享技术，共同学习，共同进步。侵权联系[81616952@qq.com]

Copyright (C)ICode9.com, All Rights Reserved.

ICode9版权所有