this post was submitted on 19 Apr 2025
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Unpowered SSD endurance investigation finds data loss and performance issues (www.tomshardware.com)
submitted 1 month ago by rssbot@lemmy.bestiver.se to c/hackernews@lemmy.bestiver.se
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[–] Lojcs@lemm.ee 2 points 1 month ago* (last edited 1 month ago) (2 children)

How does powering on an ssd help keep the data? Can it refresh without causing wear equivalent to a rewrite?

Edit: Apparently erasing is what causes wear, not writing

[–] ProdigalFrog@slrpnk.net 2 points 1 month ago

AFAIK, an ssd uses different amounts of charge per transistor to store a 1 or a 0. An unpowered ssd would seemingly eventually lose that charge signifying the 1 or a 0, and thus lose the information it represented.

Haven't looked into that thoroughly though, so could be totally off base.

[–] seang96@spgrn.com 1 points 1 month ago

Apparently

SSD's endurance rating is calculated based on how long it can store data if left unplugged after a certain amount of data has been written, hence the importance of this testing.

That said I thought it was more of a byte write life for SSDs.