My current DB Mode is NOARCHIVELOG.I will change it ARCHIVELOG.my log_archive_dest,log_archive_dest_1,..... are empty.Will it make any problem to shift to archive log?Do we need to multiplex archive log?
First understand why archivelog is required. Why the DB was running in NOARCHIVELOG so far? Shifting into Archivelog mode will not make any issue. Remember to have a backup stratagey for archivelog files and clearning it down. Multiplexing archivelogs, again depend on, how important is your data. I don't think such an important DB will run in NOARCHIVELOG mode with a new DBA.
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