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    SubjectRe: SD/MMC cards: how crappy they are?
    On Tue 2008-12-02 09:59:42, H. Peter Anvin wrote:
    > Theodore Tso wrote:
    > >
    > > If this is your random eject out from your HP laptop problem, note
    > > that random ejects while the card is writing can cause corruption of
    > > the flash translation layer (FTL), which for some really crappy cards,
    > > can permanently damage them; hopefully most of those are gone from the
    > > market, but I wouldn't be positive about that. The better ones will
    > > have some kind of journalling scheme for their FTL...
    > >
    >
    > I have seen flash cards die permanently from having a partition table it
    > didn't like written to it. Yes, the microcontroller on the flash card
    > tried to interpret the partition table, assumed to be MS-DOS style, and
    > would crash.

    Aha... that explains why I killed few flashcards by tar xzvf /dev/sdX files
    ... hopefully thats fixed in the better/bigger cards now.

    Pavel
    --
    (english) http://www.livejournal.com/~pavelmachek
    (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html


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