Calculation Network Bandwidth for Oracle Data Guard Disaster Recovery (DR)
In the realm of disaster recovery (DR) planning, calculating the network bandwidth required for Oracle Data Guard is paramount. Ensuring seamless replication and efficient data synchronization between primary and standby databases hinges on accurate bandwidth estimations Understanding Redo Generation Rate At the heart of bandwidth calculation lies the average redo generation rate per second in the database. To ascertain this crucial metric, one approach is to query the DBA_HIST_SYSMETRIC_SUMMARY table: SELECT AVG(MAXVAL) FROM DBA_HIST_SYSMETRIC_SUMMARY WHERE METRIC_NAME=’Redo Generated Per Sec’; This query yields the average of maximum summary redo generation values over a period, providing a reliable baseline for bandwidth computation. Bandwidth Calculation Formula Required bandwidth = ((REDO rate (in bytes per second) / 0.75) * 8) / 1,000,000 (in Mbps) Here, the redo rate in bytes per second is divided by 0.75 to ac...