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MANDATORY
Specifies that filled online log files must be successfully archived to the destination
before they can be reused.
Usage Notes
■ The LOG_ARCHIVE_DEST_11 through LOG_ARCHIVE_DEST_31 parameters do
not support the MANDATORY attribute.
■ If MANDATORY is not specified, then, by default, the destination is considered to be
optional.
At least one destination must succeed, even if all destinations are optional. If
archiving to an optional destination fails, the online redo log file is still available
for reuse and may be overwritten eventually. However, if the archival operation of
a mandatory destination fails, online redo log files cannot be overwritten. |
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