标签：database 配置 oracle orcl oradata Dataguard sql Oracle data
上一篇时候，我们已经安装好了一台DB，接下来开始做DG配置，
| DB参数规划 | |||||
| HOSTNAME | IP | DB_NAME | DB_UNIQUE_NAME | INSTANCE_NAME | SERVICE_NAME |
| mydb01 | 192.168.110.138 | orcl | dbprimary | orcl | orcl |
| mydb02 | 192.168.110.139 | orcl | dbstandby | orcl | orcl |
| 文件物理路径 | ||
| 文件类别 | 主库 | 备库 |
| datafile | /data/oracle/oradata/orcl/ | /data/oracle/oradata/orcl/ |
| controlfile | /data/oracle/oradata/orcl/ | /data/oracle/oradata/orcl/ |
| archivelog | /data/oracle/oradata/archive/ | /data/oracle/oradata/archive/ |
（一）、主备库上分别配置监听和tns.ora
配置lisenter.ora，內容如下：
dbprimary的listener.ora (/data/oracle/product/11.2.0/db_1/network/admin目录下):
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = orcl)
(ORACLE_HOME = /data/oracle/product/11.2.0/db_1)
(GLOBAL_DBNAME = orcl)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = mydb01)(PORT = 1521))
)
)
dbstandby的listener.ora:
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = ZZKPHMDB)
(ORACLE_HOME = /data/oracle/product/11.2.0/db_1)
(GLOBAL_DBNAME = orcl)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = mydb02)(PORT = 1521))
)
)
dbprimary和dbstandby上的tnsnames.ora是一样的
# Generated by Oracle configuration tools.
dbprimary =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = mydb01)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
dbstandby =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = mydb02)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
（二）、检查配置主备库是否正确
备库上执行：oracle>sqlplus sys/oracle@dbprimary as sysdba
主库上执行：oracle>sqlplus sys/oracle@dbstandby as sysdba
能连上说明主备库可以互通。
（三）、主库上增加standby_log
配置Standby Redo Log。创建组数至少要比主库的online redo log组数多一个。主库增加group 5，6，7；因为会把主库的oradata覆盖掉备库的oradata目录，所以暂时不增加备库的standby_log。查看standby_log:select * from v$standby_log，查看log文件：select * from v$logfile; 过会儿把主库的文件复制到备库后，再在备库上shutdown->startup mount->创建group 8.
alter database add standby logfile group 5 ('/data/oracle/oradata/orcl/redo05.log') size 50m;
alter database add standby logfile group 6 ('/data/oracle/oradata/orcl/redo06.log') size 50m;
alter database add standby logfile group 7 ('/data/oracle/oradata/orcl/redo07.log') size 50m;
4.、dbprimary上配置
1. oracle>mkdir /data/oracle/oradata/archive
2. cd /data/oracle/product/11.2.0/db_1/dbs
oracle>orapwd file=orapworcl password=oracle entries=4 产生密码文件，也要复制到备库
3. oracle>sqlplus sys as sysdba
sql>create pfile from spfile; 在/data/oracle/product/11.2.0/db_1/dbs/下生成initorcl.ora
在initorcl.ora文件后面增加内容：
*.DB_UNIQUE_NAME='dbprimary'
*.LOG_ARCHIVE_CONFIG='DG_CONFIG=(dbprimary, dbstandby)'
*.LOG_ARCHIVE_DEST_1='LOCATION=/data/oracle/oradata/archive VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=dbprimary'
*.LOG_ARCHIVE_DEST_2='SERVICE=dbstandby LGWR SYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=dbstandby'
*.LOG_ARCHIVE_DEST_STATE_1='ENABLE'
*.LOG_ARCHIVE_DEST_STATE_2='ENABLE'
*.LOG_ARCHIVE_FORMAT='%t_%s_%r.arc'
*.LOG_ARCHIVE_MAX_PROCESSES=5
*.FAL_SERVER='dbstandby'
*.FAL_CLIENT='dbprimary'
*.STANDBY_FILE_MANAGEMENT='AUTO'
4.
sql>shutdown immediate;
sql>create spfile from pfile;
sql>startup mount;
sql>alter database archivelog;
sql>alter database open;
sql>archive log list; 查看是否处于log模式,如果不是执行如下命令
sql>alter database force logging; 改变为logging模式
sql>alter database create standby controlfile as '/data/oracle/oradata/orcl/standby01.ctl'; 创建dbstandby上的控制文件
sql>shutdown immediate;#关闭主库准备打包复制文件
5. 把/data/oracle/oradata打包传到dbstandby服务器, 把 /data/oracle/product/11.2.0/db_1/dbs/orapworcl也传过去。复制资料时候主库是关闭状态，待备库配置完成，并启动后，主库再开启。
oracle>cd /data/oracle/
oracle>tar czvf oradata.tar oradata #打包：
oracle>scp /data/oracle/oradata.tar mydb02:/data/app/oracle/
oracle>scp /data/oracle/product/11.2.0/db_1/dbs/orapworcl mydb02:/data/oracle/product/11.2.0/db_1/dbs/
（四）、dbstandby上配置
1. oracle>sqlplus sys as sysdba
sql>shutdown immediate;
2. oracle>cd /data/app/oracle
oracle>rm -rf oradata
把刚才传过来的包解压
oracle>tar zxvf oradata.tar
oracle>cd oradata/orcl/
oracle>cp standby01.ctl standby02.ctl
oracle>cp standby01.ctl standby03.ctl
3. sql>create pfile from spfile
修改initorcl.ora
*.control_files='/data/oracle/oradata/orcl/standby01.ctl','/data/oracle/oradata/orcl/standby02.ctl','/data/oracle/oradata/orcl/standby03.ctl'
*.DB_UNIQUE_NAME='dbstandby'
*.LOG_ARCHIVE_CONFIG='DG_CONFIG=(dbprimary, dbstandby)'
*.LOG_ARCHIVE_DEST_1='LOCATION=/data/oracle/oradata/archive/ VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=dbstandby'
*.LOG_ARCHIVE_DEST_2='SERVICE=dbprimary LGWR SYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=dbprimary'
*.LOG_ARCHIVE_DEST_STATE_1='ENABLE'
*.LOG_ARCHIVE_DEST_STATE_2='ENABLE'
*.LOG_ARCHIVE_FORMAT='%t_%s_%r.arc'
*.LOG_ARCHIVE_MAX_PROCESSES=5
*.FAL_SERVER='dbprimary'
*.FAL_CLIENT='dbstandby'
*.STANDBY_FILE_MANAGEMENT='AUTO'
4.创建group 8
sql>startup mount;
sql>alter database add standby logfile group 8 ('/data/oracle/oradata/orcl/redo08.log') size 50m;
/data/oracle/oradata/orcl/下多出一个redo08.log文件。
5. 启动到recover mange模式
sql> shutdown immediate;
sql>create spfile from pfile;
sql>startup nomount;
sql>alter database mount standby database;
sql>alter database recover managed standby database disconnect from session; 启动到recover mange模式
（五）、启动主库
oracle>lsnrctl stop
oracle>lsnrctl start
sql>shutdown immediate;
sql>startup;
（六）、验证归档日志是否同步到备库
查看目录/data/oracle/oradata/archive/是否与主库一致。
执行sql>alter system switch logfile;看备库上是否会新增一个归档日志。
此时，备库是无法用plsql连线的，需要将备库切换到read only
（七）、切换备库到read only
startup mount;
alter database open read only;
alter database recover managed standby database using current logfile disconnect from session;
再用plsql就可以连线，只是备库无法修改数据。创建一个表空间，备库中同步新增一个表空间。
（八）、重启测试，主库自动启动，备库需要手动切换到read only
sqlplus sys as sysdba
shutdown immediate;
startup mount;
alter database open read only;
alter database recover managed standby database using current logfile disconnect from session;
alter database recover managed standby database cancel;
alter database recover managed standby database using current logfile disconnect from session;
至此，从安装oracle到datagard的配置过程就结束了，希望对你有所帮助。如有问题可以评论探讨，互相学习。
标签：database,配置,oracle,orcl,oradata,Dataguard,sql,Oracle,data 来源： https://blog.csdn.net/haofangkiller/article/details/120394129
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