Backup and Recovery Concepts 备份和恢复的概念

you should be able to:

Identify the types of failure that can occur in an Oracle databaseDescribe ways to tune instance recoveryIdentify the importance of checkpoints, redo log files, and archive log filesConfigure the fast recovery areaConfigure ARCHIVELOG mode

The database administrator’s duties are to:

Protect the database from failure wherever possibleIncrease the mean time between failures (MTBF)Protect critical components by redundancyDecrease the mean time to recover (MTTR)Minimize the loss of data

考：

考：

实例恢复调优：

archive log list; 查看是否开启归档；

建议生产环境用FRA.