RE: [CAD_CAM_EDM_DRO] Re: EMC Black Box

the issue of cell degridation (but spelled right) was what had been pointed
out to me, the controller in compact flash keeps track of read/writes and
will 'decomission' a cell if it exceeds the amount in the specs. it also
acts as ECC... but i know practically nothing about that, just read it in
the specifications... with cheap ram i guess you could run without swap, if
its only a machine controller, and the only real hard memory usage is EMC...
which i think allocates its own memory??? (help me here) then as long as
your not playing mp3's.... AND youve got 256+ ram, that would be workable

> -----Original Message-----
> From: ccs@... [mailto:ccs@...]
> Sent: Tuesday, January 29, 2002 8:13 AM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: Re: [CAD_CAM_EDM_DRO] Re: EMC Black Box
>
>
>
> > i was told the other day that compact flash has a
> degridation problem... i
> > was skeptical, so i researched it and found most suppliers
> show a MTBF of
> > 1,000,000 to 10,000,000hours... uh... 114 years? oh my,
> what if in 114
> > years it fails!!! ohNO!!!!! anyhow, sarcasm aside, ive
> gotta work---Dave L.
>
> I believe the lifetime issue is really that you can only erase and
> rewrite the cells so many times. It should last indefinitely in
> program or even data storage, but I'd be worried about having a
> constantly changing swap partition on one. With enough ram you can
> probably run linux without swap (I certainly have - although I suppose
> it might crash horribly if you ever ran out of memory) so that might
> be worth looking into given today's low ram prices.
>
> Chris Stratton
>
> -------------------------------------------------
> Christopher C. Stratton
> Engineer, Instrument Maker, and Horn Player
> ccs@... 617 628 1062
> http://web.mit.edu/~stratton/www/brassbuild.html
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