Flash disks and FFS layout heuristics

Christopher Arnold chris at arnold.se
Sun Mar 30 14:42:43 PDT 2008


On Sun, 30 Mar 2008, Poul-Henning Kamp wrote:

> In message <200803302100.m2UL0FTd015654 at apollo.backplane.com>, Matthew Dillon 
> w
> rites:
>
>>    Er, why don't you explain it again, because I can't find the reference.
> 
> You'll find it if you search for it.
> 
I belive phk means that ggogling for "Flash Adaptation Layer" turns up some 
results.

> And no, I really don't want to discuss it any further with you.
> 
But please continue the duscussion for the sake of the silent majority, there 
are loads of us out here who are interested in flash fs development.

Also, i had the impression that newer flash based hardrives had internal logig 
to spread out writs evenly over the disk and to remap worn out blocks. And that 
the result of these algoritms increased MTBF to atleast the MTBF for spinning 
disks. Or have i misread something?


 	/Chris

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