http://neeraj-dba.blogspot.com/2011/10/ora-10456-cannot-open-standby-database.html   Once while starting my standby database i found that database is not opening in normal mode. It throws the error-10456 :cannot standby database.  On performing some…

搭建DG最后一步打开时报错如下:   SQL> alter database open read only; alter database open read only * ERROR at line 1: ORA-10458: standby database requires recovery ORA-01152: file 1 was not restored from a sufficiently old backup ORA-01110: data file 1: '/data/ora…

Oracle Standby Database 实现方案  From: http://wanow.blog.hexun.com/4672755_d.html 字号:大 中 小 版本:V20060328.01.01 Standby Database的工作原理 1. Oracle 与 High Availability, Disaster Recovery 及 Data Duplicate 相关功能的产品概述 Oracle 的 High Availability 功能,Oracle 是从下面几个方面…

Applies to: Oracle Server - Enterprise Edition - Version 11.1.0.6 to 11.2.0.4 [Release 11.1 to 11.2]Information in this document applies to any platform.GoalStep by step guide on how to create a physical standby database using RMAN DUPLICATE FROM ACT…

作者:david_zhang@sh [转载时请以超链接形式标明文章] http://www.cnblogs.com/david-zhang-index/p/5042640.html参照文档:https://azure.microsoft.com/en-us/documentation/articles/virtual-machines-configuring-oracle-data-guard/?cdn=disable#implement-the-physical-standby-databas…

通过合理的设置,对于Primary的绝大数操作,都是可以传递到Physical Standby,datafile的操作是通过STANDBY_FILE_MANAGEMENT参数来控制的,但是即使STANDBY_FILE_MANAGEMENT设置为auto,对于rename操作,standby还是忽略的. If you do not rename the corresponding datafile at the standby system, and then try torefresh the…

在物理DG主备库切换时遇到ORA-16139: media recovery required错误 SQL> ALTER DATABASE COMMIT TO SWITCHOVER TO PRIMARY; ALTER DATABASE COMMIT TO SWITCHOVER TO PRIMARY * ERROR at line 1: ORA-16139: media recovery required 解决办法: --如果报ORA-16139: media recovery required,…

ORA-01153: an incompatible media recovery is active Cause: Attempted to start an incompatible media recovery or open resetlogs during media recovery or RMAN backup . Media recovery sessions are incompatible if they attempt to recover the same data fi…

Cause ALTER SYSTEM FLUSH REDO TO STANDBY failed because redo apply is not active at the target database. Action Start redo apply at the standby database and reissue the ALTER SYSTEM FLUSH REDO TO STANDBY statement, or reissue the ALTER SYSTEM FLUSH R…

1.停止Standby select process, status from v$managed_standby; --查看备库是否在应用日志进行恢复 alter database recover managed standby database cancel; shutdown immediate;   2.切换到只读模式 -----由shutdown模式切换到只读模式------- startup nomount; alter database mount standby database…