oracle Architecture (instance and database) 实验 开关归档

oracle Architecture (instance and database)

实验

开关归档

1开归档

1.1查看当前归档模式：

archive log list;

非归档模式

1.2 正常关闭数据库，库启动到 mount 状态，开归档，开库，查看后台进程

shutdown immediate;

startup mount;

alter database archivelog;

alter database open;

[oracle@buwei ~]$ ps -ef | grep ora_ | grep arc

2关归档

shutdown immediate;

startup mount;

alter database noarchivelog;

alter database open;