You can use Oracle Enterprise Manager Database Express (EM Express) to view status information about archived redo log files.
Note:
In a multitenant container database (CDB), EM Express provides archived redo log file information only in the root, not in the pluggable databases (PDBs).
Note:
Archived redo log files do not exist until you set the database in ARCHIVELOG
mode.
To view archived redo log file information: