Any restrictions or recommendations regarding SD cards?

[C. Scott Ananian]

On Thu, Mar 24, 2011 at 3:26 PM, Christoph Derndorfer
<christoph.derndorfer at gmail.com> wrote:
> Hi all,
> the folks from the Austrian pilot project want to equip the XO-1s there with
> SD cards. Are there any restrictions wrt size, speed, etc. that they should
> be aware of when purchasing the SD cards? I'm particularly asking after
> reading James' mention of seeing more issues with newer cards and the XO-1
> power off bug.
> Or asked the other way 'round: Are there any particular cards or
> manufacturers which people can recommend?

My recommendation would be to get some samples and test them.  The
manufacturer's name doesn't really tell you much when it comes to SD
cards.

There are some numbers at http://wiki.laptop.org/go/NAND_Testing but
again, your results will vary.

More speed is always better, but "class 4" isn't *necessarily* slower
than "class 6", it all depends on what parts they had on the shelf
that day.  But it's probably worth looking for the fastest cards you
can afford.
  --scott

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