The default retention period is assigned to a WORM file on a SnapLock volume if the file was not explicitly assigned a retention period.
The initial value of the default retention period is equal to the maximum retention period on SnapLock Compliance volumes and the minimum retention period on SnapLock Enterprise volumes. Any changes in these values change the default retention period.
You can set infinite retention for a file by setting the default retention period of the volume to infinite. You cannot explicitly assign a retention date to the file. Any attempt to explicitly set the retention date on the file before committing it to the WORM state will cause the file to be retained for the specified period and not infinite retention.