Flash disks and FFS layout heuristics
Martin Fouts
mfouts at danger.com
Tue Apr 1 11:06:36 PDT 2008
If you've asked, I've missed the question.
We tend to size ram and embedded NAND the same. The latest numbers I can
discuss are several years old and were 64mb/64mb. Engineering *always*
wants more of each, but the BOM rules.
> -----Original Message-----
> From: Matthew Dillon [mailto:dillon at apollo.backplane.com]
> Sent: Tuesday, April 01, 2008 10:48 AM
> To: Martin Fouts
> Cc: freebsd-arch at freebsd.org
> Subject: RE: Flash disks and FFS layout heuristics
>
> :
> :> -----Original Message-----
> :> From: Matthew Dillon [mailto:dillon at apollo.backplane.com]=20
> :> Sent: Monday, March 31, 2008 3:20 PM
> :>=20
> :> For flash storage systems competitive with hard drive storage,=20
> :
> :In embedded systems, it's RAM that flash storage competes
> with, not hard
> :
> :drive storage.
> :
> :SSD is a completely different engineering problem.
>
> You know, I think I've asked this already and you don't
> have to answer
> it if you don't want to, but exactly how large a flash
> device are you
> working with in your embedded project(s)?
>
> -Matt
>
>
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