When rotating USB drives around, simply use the default Windows drive
letter, so that each of the drives shows up with the same drive
letter, despite being 2 or 3 drives. That's what I do, and it works
great: D2D simply starts with a fresh full when a completely clean
drive is found, and then continues incrementals for a week (until we
swap it). If the old RPs are not removed, it would then convert the
Incremental into a Verify job - which compares and writes only the
changes to disk. If that's desired, and the server is very big, I'd
recommend Friday evening for swapping drives.
D2D's cloud copy is done on a file level, rather than sending the full
image (full & incremental). So for a full restore, especially booting
the .iso / Bare Metal Recovery, one has to use the USB / LAN / SAN /
DAS copy of normal D2D recovery points, not the cloud.
helps?