On Sun, Mar 18, 2012 at 9:03 AM, Jim Klimov <jimkli...@cos.ru> wrote:
> Hello, while browsing around today I stumbled across
> "Seagate Pipeline HD" HDDs lineup (i.e. ST2000VM002).
> Did any ZFS users have any experience with them?
> http://www.seagate.com/www/en-us/products/consumer_electronics/pipeline/
> http://www.seagate.com/www/en-us/products/consumer_electronics/sv35_series/#tTabContentSpecifications

I used an SV disk to upgrade one of my Tivo units, but I've never
thought them appropriate for general use.  It is my understanding that
this type of disk is optimized for streaming workloads (reading large
video files) and is not as stringent about error correction (who cares
if you lose a few bytes of one frame of 30-FPS video-- you'll never
see it).  Under a typical NAS workload (much more random, smaller
I/Os) I would expect higher average latency and thus poorer
performance than even a bog-standard desktop drive.

Never seemed like a good idea to me, and to paraphrase Richard Elling,
expecting any kind of respectable performance from spinning media is a
sucker's game.  ;)

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