搭建环境:Red Hat Linux Enterprise 5.4Oracle 10g R2主机操作系统主要信息为192.168.199.128.
搭建准备:已存在主库(生产库)DB_NAME=mustang SID=april
开始搭建Data Guard首先需要准备好参数文件,设定一些必要的参数。在主库,先通过spfile生成pfile文件:SQL>create pfile=’/home/oracle/product/10.2initapril.ora’ from spfile; 然后修改主库新生成的initapril.ora参数文件。在原有的基础上添加如下内容:
- db_unique_name=mustang
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- log_archive_config="DG_CONFIG=(mustang,standby)"
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- log_archive_dest_2="service=standby arch async valid_for=(online_logfiles,primary_role)
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- db_unique_name=standby"
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- log_archive_dest_1="location=/home/oracle/archive valid_for=(all_logfiles,all_roles)
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- db_unique_name=mustang"
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- log_archive_dest_state_1=enable
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- log_archive_dest_state_2=enable
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- log_archive_format=%t_%s_%r.arc
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- log_archive_max_processes=30
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- fal_server=standby
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- fal_client=mustang
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- db_file_name_convert="standby","mustang"
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- log_file_name_convert="/home/oracle/","/home/oracle/standby/"
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- standby_file_management=auto
修改完参数文件之后,要重新打开主库,然后通过iniapril.ora来创建spfile。如下:<?XML:NAMESPACE PREFIX = O />
- SQL>create spfile=’/home/oracle/product/10.2.0/db_1/dbs/spfileapril.ora’ from pfile=’
- /home/oracle/product/10.2.0/db_1/dbs/initapril.ora’;
接下来的工作就是要通过主库的参数文件,创建备库需要的参数文件,在主库上运行:
- SQL>create pfile=’ /home/oracle/product/10.2.0/db_1/dbs/initstandby.ora’ from spfile;
编辑initstandby.ora。如下所示:
- standby.__db_cache_size=213909504
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- standby.__large_pool_size=4194304
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- *.control_files="/home/oracle/standby/standby.ctl"
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- *.db_file_multiblock_read_count=8
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- *.db_file_name_convert="standby","mustang"
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- *.db_files=80
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- *.db_name="mustang"
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- *.db_unique_name="standby"
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- *.fal_client="standby"
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- *.fal_server="mustang"
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- *.global_names=TRUE
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- *.instance_name="standby"
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- *.log_archive_config="DG_CONFIG=(mustang,standby)"
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- *.log_archive_dest_1="location=/home/oracle/standby/archive"
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- *.log_archive_dest_2="service=mustang arch async valid_for=(online_logfiles,primary_role)
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- db_unique_name=mustang"
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- *.log_archive_dest_state_1="enable"
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- *.log_archive_dest_state_2="enable"
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- *.log_archive_format="%t_%s_%r.arc"
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- *.log_archive_max_processes=30
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- *.log_buffer=32768
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- *.log_checkpoint_interval=10000
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- *.log_file_name_convert="/home/oracle/","/home/oracle/standby/"
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- *.max_dump_file_size="10240"
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- *.parallel_max_servers=5
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- *.processes=50
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- *.service_names="standby"
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- *.sga_max_size=300M
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- *.sga_target=300M
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- *.standby_file_management="auto"
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- *.undo_management="auto"
- *.undo_tablespace="undotbs"
保存initstandby.ora参数文件。通过initstandby.ora生成动态文件spfilestandby.ora:
- SQL>create spfile=’/home/oracle/product/10.2.0/db_1/dbs/spfilestandby.ora’ from pfile=’
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- /home/oracle/product/10.2.0/db_1/dbs/initstandby.ora’;
在主库上创建我们的密码文件:
- [oracle@localhost dbs]$orapwd file=’ /home/oracle/product/10.2.0/db_1/dbs/orapwstandby’ password=oracle entries=10
通过主库的控制文件生成我们备库的控制文件:
- SQL>alter database create standby controlfile as ‘/home/oracle/standby.ctl’;
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