Unraid "solves" that althought needs some user knowledge (IIRC parity drives must be the biggest one in array and for some reason that isn't automatic) Ceph ac

Unraid "solves" that althought needs some user knowledge (IIRC parity drives must be the biggest one in array and for some reason that isn't automatic) Ceph actually works quite well for that, althought obviously far more complex than anything for home use. You just tell it "x chunks with N parity" and it will spread it over available drives. Just need more drives than x + n and not too egregious size differences. > Weighted consistent hashing can handle disparate resources, by assigning more buckets to faster or larger machines. And it can grow and shrink (in a drive array, the two are sequential or simultaneous). It would need to be more complex than that. Putting chunks on say 2, 6, 8, 12, 22 TB (which might be what you'd get if you just buy "cheapest GB/$" for your NAS over last 10 years!) is more complex than that.