[was: Cutting the power ... ] Journaling file system

[Cordula's Web]

> On January 18, 2004 10:48 pm, Micheas Herman wrote:
> > Use flash ram cards and a journaling file system. (soft updates may work
> > but you need to talk to someone that knows about them much better than I
> > do.)

Beware when using flash ram as some kind of live filesystem!
Flash media has a quite limited number of erase cycles
You may think that's plenty, but since filesystem meta-data
is often written at the same location (superblocks etc...),
this location will quickly reach the threshold, where it
can't be used anymore!

Even journaling fs are not perfect w.r.t. conserving erase-
cycles.

Perhaps someone's doing research on a filesystem type that is
kindlier to flash media?

-- 
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