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Archive for the 'DataGuard (DR)' Category

Physical standby data Guard Failover steps

Posted by Mir Sayeed Hassan on 2nd October 2017

Manually Perform Physical standby data Guard Failover steps In case of worst situation with data guard primary database, or not available for production than we can activated standby database as a primary production database. standby Database: Verify… Read more..

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Verify Primary & Standby Database are sync & applied logs

Posted by Mir Sayeed Hassan on 2nd October 2017

Verify Primary & Standby Database are sync & applied logs ON PRIMARY: col MEMBER FORMAT A100 set linesize 200 sql> SELECT   a.thread#,  b. last_seq, a.applied_seq, a. last_app_timestamp, b.last_seq-a.applied_seq   ARC_DIFF FROM (SELECT  thread#, MAX(sequence#) applied_seq, MAX(next_time) last_app_timestamp FROM gv$archived_log… Read more..

Posted in DataGuard (DR) | Comments Off on Verify Primary & Standby Database are sync & applied logs

Failover by using the DGMGRL

Posted by Mir Sayeed Hassan on 27th September 2017

Failover by using the DGMGRL On Primary Database [oracle@pr ~]$ !sq sqlplus / as sysdba SQL>  SELECT NAME,DB_UNIQUE_NAME, OPEN_MODE,DATABASE_ROLE FROM V$DATABASE; NAME      DB_UNIQUE_NAME                 OPEN_MODE            DATABASE_ROLE ——– —————————— ——————–… Read more..

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