Hi,   I would love for an additional "cache copier/syncer"  as an addition to the existing mover. What exactly do I mean by that:   Say I only want to use one large SSD cache drive (instead of 2 or more to get an array-like redundancy, since large SSDs are still somewhat pricey and, of course, take up space and ports). I would like to have all my docker/vm/often used data ond the cache drive, but I would also care to have that cache-data backed up on the standard array/data d