You can configure any primary block or chain to be scanned once on start-up by setting the scan time to zero and placing the block on scan. Once scanned, SAC does not scan the block or chain again until it restarts, the database is reloaded, or you place the block off scan and then on scan.
Any block with a scan time may be configured for one shot processing. However, the same restrictions that apply to exception-based chains also apply to one shot-based chains.
