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by Scoundreller
504 days ago
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> But devices > 10 years old rarely make the news for their flash being dead. Accelerated stability testing is fraught with potential issues, and any output is intentionally conservative. An issue with estimating lifespan on new products is that they'll expose them to more extreme conditions, but those more extreme conditions may trigger (exponentially faster) higher order reactions that are relative non-issues at regular conditions. Then you have things like activation energy requirements for a reaction that just might not be met at regular conditions, but happen at higher temperatures. And an IC is quite the soup of molecules in varying combinations unlike a straightforward solution. |
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Samsung still screwed up with the planar TLC flash used in the infamous 840 EVO SSD, which had a real-world retention measured in months. Their "fix" was to issue a firmware update that continuously rewrites data in the background, but of course this has no effect if the drive isn't always powered.
https://forum.acelab.eu.com/viewtopic.php?t=8735
https://goughlui.com/2024/07/20/salvage-tested-an-elderly-fo...