[kwlug-disc] SSD's can lose data over time

Gordon Dey gordon.dey at happydeys.ca
Thu May 14 20:33:19 EDT 2026


On 2026-05-14 19:33, Chris Frey wrote:
> So today I learned that an SSD drive, sitting in a drawer without
> power, is in the process of forgetting its data.
> 
> I'm shocked I'm only learning this now.  Is this common knowledge?

Memory state stored as energy (e.g. as an electric field (capacitor), or 
as a magnetic flux (inductor) will always leak out in our imperfect 
world. That's not an 'if'.

The question has always been, "How long until the state changes?"

If that's longer than I care about, then maybe I can think of it as 
"forever". But, I would argue, forgetting is common.

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