NTFS USN/Change Journal
How is the NTFS USN/Change Journal used for backups? Be as detailed as possible.
Is the last USN saved after a successful snapshot? Is a USN saved after each full and each incremental/differential? Do the full and incremental/differential share the same saved USN, or is there one for full and one for incrementals/differentials? Is there one for each selection list?
I'm assuming that this implies two USN (one for the last full, and one for the last incremental or differential) for each selection list.