Determines the journaling charactertistics of the database files being backed-up. All the established journaling characteristics apply to new journal files. This qualifier is effective only for an ONLINE backup (the default), when the database has journaling enabled.
The format of the NEWJNLFILES qualifier is:
-[NO]NEWJNLFILES[=[NO]PREVLINK], [NO]S[YNC_IO]]
-NEWJNLFILES can take the following three values:
PREVLINK: Back links new journal files with the prior generation journal files. This is the default value.
NOPREVLINK: Indicates that there should be no back link between the newly created journals and prior generation journal files.
SYNC_IO: Specifies that every WRITE to a journal file to be committed directly to disk. On high-end disk subsystems (for example, those that include non-volatile cache and that consider the data to be committed when it reaches this cache), this might result in better performance than the NOSYNC_IO option. NOSYNC_IO turn off this option.
-NONEWJNLFILES causes journaling to continue with the current journal files. It does not accept any arguments.
The default is -NEWJNLFILES=PREVLINK.