Re: SD/MMC cards: how crappy they are?

[Pavel Machek]

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
-- 
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