RAC环境数据库重启实例
RAC：Real Application Cluster（真正应用集群），应用越来越广泛了。RAC技术作为oracle数据库集群环境，它的管理有自己的一整套
RAC：Real Application Cluster（真正应用集群），应用越来越广泛了。RAC技术作为Oracle数据库集群环境，它的管理有自己的一整套知识，我在此来演示一下rac的重启过程。
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1.重启之前最好先看一下节点信息和运行状态
可以通过srvctl status database -d 数据库名 //查看节点信息
Crs_stat //查看节点状态
可以看到数据节点它由两个实例组成一个数据库，，分别运行不同的节点，且状态ok
2.首先关闭数据库
Srvctl stop database -d 数据库名
3、分别关闭连个节点
分别登陆相应的服务器，输入下面的命令关闭节点
Srvctl stop nodeapps -n 节点1/节点2
4、重启数据库
完成数据的一些操作后，通过srvctl start database -d 数据库名开启
正常情况下，此时每个节点会自动起来，我们检查一下如果没有自动起来我们手工重启。
Crs_stat -t 查看状态
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