I was watching the event logs for what happens when the server rebalances blocks between the tiers. In this image you can see at ~ 3am the server figured out which blocks to move around, and executed the move.
I am assuming that as time goes on the numbers will drop on how many need to move. I am not sure why the “actual” number for the move to the SSD is different than the Requested. There isn’t a whole lot of level 400+ documentation on this feature yet. But Best I can imagine is this move difference was due to lack of SSD space to move that many blocks. Since it only moved so many blocks off the drive.