Check database name, database unique name, open mode and role in
the DR configuration
select name,open_mode,db_unique_name,database_role from
v$database;----------------------------------------------------------------See
which host the instance is running on
select host_name,instance_name,startup_time from
v$instance;----------------------------------------------------------------See
status of archived logs reception and standby database log
application
select thread#,sequence#,archived,applied from v$archived_log
order by
thread#,sequence#;----------------------------------------------------------------Validity
of redo archival destination (dest_id 1 is local and 2 is DR server
inconfigured setup)
select dest_id,status,error from v$archive_dest where
dest_id
