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Old 09-23-2009, 05:53 PM   #1
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Default S-ATA 6 HDDs and Motherboards Right Around the Corner

From our front-page news:
At IDF, there are many technologies floating about that are close to shipping, including S-ATA 3 (6 Gbit/s). On the show floor is Marvell, showing off their latest controller for upcoming S-ATA 6 Gbit/s drives, along with an ASUS P7DP55D Premium motherboard, which will launch with a few such ports on the board. To show overall performance, Marvell also had a prototype S-ATA 6 SSD on-hand (the company only sells the controllers, not SSDs as a whole).

You can see below the test machine that was set up. You can't see it from this view, but a Seagate Barracuda 7200.12 2TB drive was settled in behind, and it was what was hooked up to the latest S-ATA 6 port. We have both this particular board and drive en route, so you can expect some in-depth reports soon.


Curious about performance? As you can see in the screenshot below, with HD Tach RW3, the drive hit near 400MB/s burst, 180MB/s average read (!) and a low random access time of 5.5ms. I'm not entirely confident that this wasn't a RAID setup, but I was told it wasn't. However, 180MB/s read is a little (lot) higher than I would have expected. We'll get to the nitty gritty in the coming weeks when we can get down to our own testing.


As S-ATA 6Gbit/s boards launch, it's unlikely that every port on any particular model will support it. Rather, companies are likely to start off small, and devote 2 ports to the new tech, and make them all S-ATA 6 across the board on really high-end boards. S-ATA 6 is a good thing... faster bandwidth, lower latencies, and ultimately, better performance. Stay tuned... we have lots more to share in the coming weeks.
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Old 09-23-2009, 10:57 PM   #2
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Default

Out of curiousity, any idea what the low mark on that graph was?

I know some of the latest drives can average 140MB/s, but 180MB/s is big news to me... heck, even 5.5ms is Velociraptor territory... RAID wouldn't decrease the latency any.
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Old 09-28-2009, 09:03 AM   #3
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Quote:
Originally Posted by Kougar View Post
Out of curiousity, any idea what the low mark on that graph was?

I know some of the latest drives can average 140MB/s, but 180MB/s is big news to me... heck, even 5.5ms is Velociraptor territory... RAID wouldn't decrease the latency any.
I was wrong about this...

I'm not sure what I photographed, but I went back and re-ran the benchmark and got a more sensible goal. I chose the same exact HDD, so I have no idea what was going on there.

We have a S-ATA 6 board and drive in the lab, so Bill should have some real performance numbers in the weeks to come.
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