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单机搭建DataGuard

时间:2021-07-01 10:21:17 帮助过:35人阅读

搭建环境:RedHatLinuxEnterprise5.4Oracle10gR2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=mustangSID=april开始搭建DataG

搭建环境: Red Hat Linux Enterprise 5.4 Oracle 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,网站空间,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: 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:
  • 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: 保存initstandby.ora参数文件。通过initstandby.ora生成动态文件spfilestandby.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’;
  • 开始创建备库: 首先创建备库的目录结构,这里我们以主库位于同一目录: 主库:/home/oracle/mustang 主库归档文件:/home/oracle/archive 于是我们在/home/oracle下创建我们的备库目录:

    下一步就是要配置监听(如果没有监听standby是启动不了的)。在配置监听之前,首先要进行一步就是要生成备库的密码文件:

  • [oracle@localhost dbs]$orapwd file=’ /home/oracle/product/10.2.0/db_1/dbs/orapwstandby’ password=oracle entries=10
  • 将路径切换到/home/oracle/product/10.2.0/db_1/network/admin下。通过ls命令可以看到: [oracle@localhost admin]$ ls listener.ora shrept.lst sqlnet.log tnsnames.ora 再配置监听之前,要先将我们的监听服务停止:lsnrctl stop 开始配置监听 首先配置tnsnames.ora文件。设定服务名(因为我们这里是单机,所以配置在本机上配置就行了,如果是两台机的话,就要在主备库的tnsnames.ora同时修改): 接下来配置listener.ora文件(建议用途netmgr配置,香港服务器,比较方便,因为手工配置容易出错)。配置如下: 至此我们的监听配置就完成,启动监听器:

  • [oracle@localhost admin]$ lsnrctl start
  • 出现如下内容说明,已经配置成功: LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 26-JUL-2012 20:59:37 Copyright (c) 1991, 2005, Oracle. All rights reserved. Starting /home/oracle/product/10.2.0/db_1/bin/tnslsnr: please wait... TNSLSNR for Linux: Version 10.2.0.1.0 - Production System parameter file is /home/oracle/product/10.2.0/db_1/network/admin/listener.ora Log messages written to /home/oracle/product/10.2.0/db_1/network/log/listener.log Trace information written to /home/oracle/product/10.2.0/db_1/network/trace/listener.trc Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost.localdomain)(PORT=1521))) Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost.localdomain)(PORT=1522))) Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=localhost.localdomain)(PORT=1521))) STATUS of the LISTENER ------------------------ Alias LISTENER Version TNSLSNR for Linux: Version 10.2.0.1.0 - Production Start Date 26-JUL-2012 20:59:37 Uptime 0 days 0 hr. 0 min. 0 sec Trace Level user Security ON: Local OS Authentication SNMP OFF Listener Parameter File /home/oracle/product/10.2.0/db_1/network/admin/listener.ora Listener Log File /home/oracle/product/10.2.0/db_1/network/log/listener.log Listener Trace File /home/oracle/product/10.2.0/db_1/network/trace/listener.trc Listening Endpoints Summary... (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost.localdomain)(PORT=1521))) (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost.localdomain)(PORT=1522))) Services Summary... Service "mustang" has 1 instance(s). Instance "april", status UNKNOWN, has 1 handler(s) for this service... Service "standby" has 1 instance(s). Instance "standby", status UNKNOWN, has 1 handler(s) for this service... The command completed successfully 我们也可以通过tnsping来检查,是否配置成功:

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