创建之前要对DG的环境有一个总体的规划和了解.                                                   规划 IP 192.168.3.161 192.168.3.162 SID ITID ITID DB_UNIQUE_NAME Itid1 Itid2 DATA BASE SOFTWARE /u01/app/oracle/product/11.2.0/dbhome_1 /u01/app/oracle/product/11.2.0/dbhome_1 DA…

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…

1.物理standby failover 切换 故障转移时在一些糟糕的事情发生时执行的计划外事件,需要将生产库移动到DR站点.有意思的是,这时候人们通常忙来忙去,试图弄明白发生了什么,需要做些什么才能使数据库恢复过来.客户打来电话询问系统核实才能恢复,高级管理人员在走廊徘徊,追究是谁范了错误.对于DBA来说,没有什么事情比时空的备用站点更可怕,并且在需要备用站点前,我们也不知道它是否奏效.如果故障转移失败,DBA们将会失去奖金,甚至职业生涯因此中断. 所以我们在系统建立初期,就要有周密的后援计划…

文档操作依据来自官方网址:https://docs.oracle.com/cd/E11882_01/server.112/e41134/scenarios.htm#SBYDB4888 闪回FAILOVER失败的物理备库的前提: 1.物理备库FAILOVER前设置db_recovery_file_dest_size足够大 2.物理备库AILOVER前设置db_recovery_file_dest路径 3.开启物理备库闪回数据库 The following steps assume that a f…

1.Environment Item Primary database standby database Platform Redhat 5.4 Redhat 5.4 Hostname gc1 gc2 Database Oracle 11.2.0.1.0 Oracle 11.2.0.1.0 ORACLE_SID PROD standby DB_UNIQUE_NAME primary standby 2.Preparing the PrimaryDatabase for Standby Datab…

http://www.oracle-ckpt.com/dataguard_troubleshoot_snapper/ ######sample primay scripts: spool dg_Primary_output.log set feedback off set trimspool on set line 500 set pagesize 50 column name for a30 column display_value for a60 column ID format 99 co…

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…

The following error is reported trying to create a Physical Standby database using "duplicate from active database" : RMAN-: =========================================================== RMAN-: =============== ERROR MESSAGE STACK FOLLOWS =========…

3.Snapshot Standby行为研究 下面我们分析一下Snapshot Standby的工作性质和行为性质.我们在主库方向研究当前状态. --主库日志情况 SQL> select group#, sequence#, archived, status from v$log; GROUP#  SEQUENCE# ARCHIVED STATUS ---------- ---------- -------- ---------------- 1         98 YES      INAC…

Creating a Physical Standby from Primary on Version 12c (Doc ID 1570958.1) APPLIES TO: Oracle Database Cloud Schema Service - Version N/A and laterOracle Database Exadata Cloud Machine - Version N/A and laterOracle Cloud Infrastructure - Database Ser…