【原】SCN Oracle Start-up Checks

作者:david_zhang@sh 【转载时请以超链接形式标明文章】

链接:http://www.cnblogs.com/david-zhang-index/archive/2012/07/01/2572190.html

oracle数据库启动时,scn检查原则及解决办法:

Condition on Star-Up Oracle Behavior DBA Action
CF checkpoint < Datafile checkpoint SCN "Control file too old"error Restore a newer control file
CF checkpoint > Datafile checkpoint SCN Media recovery required Most likely a datafile has been restored from backup Recovery is now required
CF checkpoint = Datafile checkpoint SCN Start up normally None
Database in mount mode,instance thread status = OPEN Crash recovery required None

 备注:cf=control file

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