[ale] OT: SSD vs spinning rust

[Ron]

Wayne via Ale wrote on 2025-11-03 10:00:

> SSDs (flash memory) are more susceptible to Bit-Rot, and more so
> with the higher densities MLC, TLC, and QLC in order of increasing
> density. Elevated temperatures, particular during storage,
> exacerbate the problem.
> 
> Long term 'storage' is probably more reliable with a good quality
> hard- drive. But hard-drives are physically more fragile, so not as
> good with laptops in motion.
All true, but bit rot is a solved problem with:

ZFS mirroring on redundant disks.


Since storage is generally cheap-ish, and data is invaluable, a mirror 
vdev in ZFS, which *detects* and *corrects* bit rot is the only way to go.

All the other features are just icing on the cake.