Re: big flash disks?

Jörn Engel
2008-06-03T18:09:54Z

On Mon, 2 June 2008 13:32:18 +0100, Jamie Lokier wrote:
>
> If they can do 4k writes, and you cannot, it sounds like the SSDs you
> have used are very different to the SSDs they have used. Is that
> right?

It isn't. Their SSDs have shitty performance for 4k random writes.
That's the entire point of their product. They reorder the data,
turning random 4k writes into aligned eraseblock-sized writes. After
that reordering the performance goes way up. Iirc at least one SSD they
used must have 1MB erasesize to explain the performance boost.

Jörn

--
Audacity augments courage; hesitation, fear.
-- Publilius Syrus