Oracle Database 12c: Advanced Administration — Question 61

Your database is running in archivelog mode. Examine the parameters for your database instance:
LOG_ARCHIVE_DEST_l ='LOCATION=/disk1/arch MANDATORY'
LOG_ARCHIVE_DEST_2 ='LOCATION=/disk2/arch'
LOG_ARCHIVE_DEST_3 ='LOCATIO=/disk3/arch'
LOG_ARCHIVE_DEST _4 ='LOCATIONs/disk4/arch'
LOG_ARCHIVE _MIN_SUCCEED_DEST = 2
While the database is open, you notice that the destination set by the log_archive_dest_1 parameter is not available. All redo log groups have been used.
What happens at the next log switch?

Answer options

• A. The database instance hangs and the redo log files are not overwritten.
• B. The archived redo log files are written to the fast recovery area until the mandatory destination is made available.
• C. The database instance is shutdown immediately.
• D. The destination set by the log_archive_dest parameter is ignored and the archived redo log files are created in the next two available locations to guarantee

Correct answer: D

Explanation

The correct answer is D because when the mandatory archive destination is unavailable, the Oracle database will write archived redo log files to the next available locations, ensuring that at least two destinations are successful as per the LOG_ARCHIVE_MIN_SUCCEED_DEST setting. Option A is incorrect as the database does not hang; it will still attempt to archive. Option B is wrong because it does not account for the mandatory destination being unavailable. Option C is inaccurate since the database does not automatically shut down in this scenario.