Article 6KPYX SD card shelf-life

SD card shelf-life

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Completely Clueless
from LinuxQuestions.org on (#6KPYX)
Hi all,
In a related thread, I asked if it was safe to continue using a 10 year old SD card in an embedded application even if it was in write-only mode the whole time. The consensus seemed to be that it should be replaced without further delay. Now, I have replaced the card in question with a brand new one and dd'd the data from the old card onto it and am feeling smugly secure now for the next 10 years as a result. However, it does kind of beg the question: does the 'data integrity clock' start running from the time the card is manufactured or from the time it's last written to? In other words, rather than replacing the old card, could I have got away with just over-writing it freshly with the same data as originally on it? Would that have got me another 10 years with it?
cheers,
Jinxie
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