Snapshot Technology
We're using the BE2012 with W2K8 R2, mount with one LUN of EMC SAN storage as U: Drive.
We perform this RAW backup of U: Drive everyday, and we execute the pre command to take snapshot of this U: b...
To my mind you'd select this when using AOFO on something like a file server (not Exchange/SQL etc), or if you have a specific VSS provider you want to explicitly select.
Leave this selection off, run the backup, and test your restores. This will give you a good indication of whether or not it works.
