I have a 9 HDD drive array formatted for ZFS, drives are not all the same size and I do have two parity drives. I want to be able to easily expand array as needed. Data isn’t that important but the hours I have into ripping 4K Blu-ray movies I’d rather not repeat. When I move a 60GB file I see about a 50MB write speed. I would like some kind of write cache or drive pool that can move data a lot faster albeit temporarily, then let it write to my array. I want the file to end up in my data/media/movies folder. I have a SSD I use for “cache” but don’t want to wear it out moving 60 GB movie files. Drives wouldn’t need to be very big, just not sure how I would move data. I have room for more drives I could add two striped HDD, but how do I get data from pool to correct spot automatically. Array has no issue streaming movies but the hour+ to move a file is not ideal. I checked and write cache is enabled on all drives. I have options for 2 optane or 2 NVME drives or combination if I can get something that will endure the writes. I see enterprise grade SSD drives on serverparts.com, not expensive in smaller sizes. Again how do I move them automatically? Can I get mover to do that for me even if I have a cache drive already for plex data to speed up that process?