day10_控制文件

---------------------验证互为镜像功能---------------------
窗口1cd /oracle/app/oradata/ecomrm control03.ctl

窗口2SQL> startup force;ORACLE instance started.
Total System Global Area 285212672 bytesFixed Size 1218992 bytesVariable Size 92276304 bytesDatabase Buffers 188743680 bytesRedo Buffers 2973696 bytesORA-00205: error in identifying control file, check alert log for more info
【加载到Nomount状态时，读取参数文件，在参数文件中，指向控制文件，有3个控制文件。】

窗口1cp control01.ctl control03.ctl

窗口2alter database mount;alter database open;
控制文件复制回来，正常了，验证了镜像功能

---------------------------多路复用------------------------------------窗口1SQL> alter system set control_files ='/oracle/app/oradata/ecom/control01.ctl','/home/oracle/ctrl02.ctl' scope=spfile;

窗口2cp /oracle/app/oradata/ecom/control01.ctl /home/oracle/ctrl02.ctl
窗口1SQL> shutdown immediate;
窗口2rm control02.ctl control03.ctl
窗口1SQL> startupSQL> show parameter control_files;

来自为知笔记(Wiz)