Apply Lag Increasing After initiating data guard service by broker, we saw something unusual about redo applying. DGMGRL> show database ORCLSTB Database - ORCLSTB … Read More »Recreate Standby Redo Logs, How and Why?
Standby Redo Log
ORA-01156 Tried to add a standby log file to a database, but it failed with ORA-01156. SQL> alter database add standby logfile thread 1 group… Read More »How to Resolve ORA-01156: recovery or flashback in progress may need access to files
Asymmetric Data Guard Usually we build data guard environments with the symmetric architecture design on primary and standby servers, that is, single-instance to single-instance or… Read More »How to Build Asymmetric Standby Database for Data Guard