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Do people buy SSDs for backup purposes? Sure it's fast, but isn't it better to get 6x the storage for the same price?


I've read that SSDs are also generally more susceptible to data degradation earlier than spinning rust, although I'm not sure how true that is. Wikipedia[0] says:

- Solid-state media...store data using electrical charges, which can slowly leak away due to imperfect insulation.

- Magnetic media...may experience data decay as bits lose their magnetic orientation. Periodic refreshing by rewriting the data can alleviate this problem. In warm/humid conditions these media, especially those poorly protected against ambient air, are prone to the physical decomposition of the storage medium.

In either case, only ZFS/Btrfs/ReFS seem to implement strategies to deal with data corruption. Kinda sad that Apple recently released a new FS and didn't bother to address this.

[0] https://en.wikipedia.org/wiki/Data_degradation


These are small and very convenient, and don't need a power supply. Great for trip use. I wouldn't use them for long term storage.




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