oracle query archive mode
query to see if you are in ARCHIVELOG mode:
This can also be queried in Oracel SQL developer.
SQL> archive log list;
SQL> select log_mode from v$database;
+++++++++++++++++++++++++++++++++++++++++
You can also run this UNIX/Linux command
to see if you are running in archivelog mode.
If you are in ARCHIVELOG mode,
you will see rows returned by this ps command:
$ ps -ef|grep -i _arc