Messages in this thread | | | Date | Mon, 16 May 2005 18:42:30 +0200 | From | Pavel Machek <> | Subject | Re: Sync option destroys flash! |
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Hi!
> > All flashcards (other than dumb "smart media" cards) have integrated > > NAND controllers which perform automatic page/block remapping and > > which implement various wear-leveling algorithms. Rewriting "Sector 0" > > 10000 times probably only writes once to the first sector of a 1GB card. > > The other writes are spread around the rest of the card, and remapped > > logically by the integrated controller. > > Assuming the firmware of the card is written with a modicum of clue, > this is true. It's not clear how valid that assumption is, in the > general case. There are reports of cards behaving as if they have almost > no wear levelling at all.
I have seen card marked "3.3V/5V", but it only really worked on 3.3V. Linux used 5V and quickly killed it. Pavel -- Boycott Kodak -- for their patent abuse against Java. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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