OK, been playing around.... If I change Auto balancing from "Do not balance automatically" to "Balance immediately" then copy a file, the file goes to E:
If I then force a Rebalance, the file is only then moved to D:
Question: Am I doing something wrong, or is this the intended behaviour? If so, the balancing and file placement rules are overly complicated.
My original intention was to replicate the "Auto-Folder Priority" merge mode behaviour in FlexRaid's pool. By enabling a single setting in Flexraid, files located in the same folders are automatically kept on the same drive as long as disk space is fine. As a result , all of my series, movies, etc are automatically kept on separate drives with zero effort from my side.
For all of its faults, in FlexRaid this just works, while in Drivepool files that should ideally be kept together end up being fragmented over all of my drives - I am unable to get even close to replicating the FlexRaid behaviour.
[Edit: Sorry if this comes across as overly critical. Hopefully someone can help me in the right direction. The rest of DrivePool is really awesome! ]