11.2 Data Guard Physical Standby Switchover Best Practices using SQL*Plus (Doc ID 1304939.1) APPLIES TO: Oracle Database - Enterprise Edition - Version 11.2.0.1 and laterOracle Database Cloud Schema Service - Version N/A and laterOracle Database Exad…
18c & 19c Physical Standby Switchover Best Practices using SQL*Plus (Doc ID 2485237.1) APPLIES TO: Oracle Database - Enterprise Edition - Version 18.3.0.0.0 and laterInformation in this document applies to any platform. GOAL This Document explain abo…
Switchover转换 Step 1: switchover 切换先前检查 (1)确保主备两端log_archive_config和db_unique_name参数都已经正确设置. 需要注意的是,主备两端db_unique_name不能一样. (2)在备库检查MRP进程是否正在运行 SQL> SELECT PROCESS FROM V$MANAGED_STANDBY WHERE PROCESS LIKE 'MRP%'; (3)在主库检查是否是REAL TIME APPLY模式 SQ…
Data Guard Physical Standby - RAC Primary to RAC Standby using a second network (Doc ID 1349977.1) APPLIES TO: Oracle Database - Enterprise Edition - Version 11.2.0.1 to 11.2.0.4 [Release 11.2]Information in this document applies to any platform. GOA…
Data Guard: Oracle 12c – New and updated Features (Doc ID 1558256.1) APPLIES TO: Oracle Database - Enterprise Edition - Version 12.1.0.1 to 12.1.0.1 [Release 12.1]Oracle Database Cloud Schema Service - Version N/A and laterOracle Database Exadata Clo…
How To Calculate The Required Network Bandwidth Transfer Of Redo In Data Guard Environments (Doc ID 736755.1) APPLIES TO: Oracle Database - Enterprise Edition - Version 9.0.1.0 and laterOracle Database Cloud Schema Service - Version N/A and laterOrac…
Data Guard主从库之间的角色切换分为以下两种:1)SwitchoverSwithchover通常都是人为的有计划的进行角色互换,比如升级等.它通常都是无损的,即不会有数据丢失.其执行主要分为两个阶段:1.Primary转为Standby2.Standby(之一)转为Primary2)FailoverFailover是指由于Primary故障无法短时间恢复,Standby不得不充当Primay的角色,如果处于最高性能模式,这种切换很有可能导致数据丢失.…
