Explanation/Reference:
Explanation:
LOG_ARCHIVE_DEST_n
The LOG_ARCHIVE_DEST_n parameters (where n = 1, 2, 3, ... 10) define up to ten archive log destinations.
The parameter integer suffix is defined as the handle displayed by the V$ARCHIVE_DEST dynamic performance view.
Values:
SERVICE
Specifies a standby destination. Oracle Net (IPC or TCP) transmits the archivelog. A standby instance must be associated with the destination. The value represented by tnsnames_service corresponds to an appropriate service name in tnsnames.ora.
LOCATION
Specifies a local file system destination. You must specify this parameter for at least one destination.
MANDATORY
Specifies that archiving to the destination must succeed before the redo log file can be made available for reuse.
OPTIONAL
Specifies that successful archiving to the destination is not required before the redo log file can be made available for reuse. If the "must succeed count," set with LOG_ARCHIVE_MIN_SUCCEED_DEST, is met, the redo logfile is marked for reuse. This is the default.
REOPEN
Specifies the minimum number of seconds before the archiver process (ARCn, foreground, or log writer process) should try again to access a previously failed destination. Future attempts are made when the next redo log file is archived. If a destination is MANDATORY, then Oracle recommends that you specify a REOPEN time that reduces the possibility of primary database shutdown due to lack of available online redo log files.
If you do not specify seconds, then the default value is 300