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Old 8th Mar 2012, 11:58   #1
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SSDs to get faster with SATA Express

DRAMeXchange has published a list of industry trends which includes a timescale for adoption of SATA Express.

http://www.bit-tech.net/news/hardwar...sata-express/1
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Old 8th Mar 2012, 12:01   #2
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If Express can do for SATA what it did for PCI then I'm all in, oh and cheaper SSD's cheesecake!
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Old 8th Mar 2012, 12:27   #3
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mmm 2tb/s transfer speeds.

in raid0....

My pr0n will load in 0.00003e-12m/s
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Old 8th Mar 2012, 12:29   #4
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What "app" needs 2TB/s ? But I'll form an orderly queue...

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Old 8th Mar 2012, 12:40   #5
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The only practical use I can think of for those sort of speeds would be large scale backup systems. But then, the SSDs wouldn't be larger enough to store enough data for a backup system that needed speeds like that.

Unless we're going to start getting >10TB drives, it seems a bit pointless.
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Old 8th Mar 2012, 13:30   #6
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Quote:
Originally Posted by dunx
What "app" needs 2TB/s ? But I'll form an orderly queue...

dunx
2TB/s is fast enough to use a harddrive as RAM. Not that SSDs are fast enough for that yet, but it paves the way for a system design that doesn't need RAM any more.
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Old 8th Mar 2012, 13:42   #7
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No more load screens? How am I going to learn how to play a game without reading the tips during the load screens?
Read the manual? PFFT, what do you think I am, someone with TWO X chromosomes?
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Old 8th Mar 2012, 14:09   #8
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<sarcam>NOOOOOOOO!!!! I don't want faster hardware, what a complete and utter waste of time. I don't ever see myself *ever* using anything faster than I have right now. Especially since SSDs are never going to get bigger, or cheaper, because no one needs more space on them or wants to pay less.</sarcam>

Why do people *always* say stuff along the lines of "what's the point of having something faster than I can use today"? Well silly, so you can create NEW use cases if you have hardware more capable than you need today. I mean who look back to 1995 or so and Myst - today we can freely move around in an environment, prettier than that, in real time. But out current hardware is laughably overkill for running Myst today!

Bring on the development I say - keep the competition high and we'll keep getting better and better computing at cheaper and cheaper prices!
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Old 8th Mar 2012, 15:50   #9
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Future proof.

Current RAM speeds are roughly 20-40GB/sec compared to SATA6Gbps, which is roughly .6GB/sec max real transfer rate.

So RAM is still close to 100x faster than the fastest SATA interface. NAND flash and other chip based storage doesn't look like they'll be fast enough to be on par with RAM anytime soon, but at the same time opening it up for years and years of future proofing is not a bad thing. PCI-e electrical interconnect might also reduce latency some, though most is related to the NAND itself, which is still massively slower than DRAM.

However, it doesn't hurt to be able to push a GB/sec or two. Nothing wrong with loading up Windows in 3-5 seconds instead of 20-30 seconds of a fastish SSD now. Speeds up enterprise stuff too. In portable stuff it'd reduce power consumption as well as the processor could drop back to idle faster instead of being at a higher power state processing data as it slowly comes in from mass storage instead of being able to hammer through it as it floods in and then go back to sleep.

A 30s load time for an app wastes a lot more power than running the CPU at a somewhat higher load and being able to pull it from main storage in 4-8s.
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Old 8th Mar 2012, 18:57   #10
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2TB/sec sounds completely wrong - it'd be 140 PCIe 3.0 lanes... Maybe in 10-15 years, but certainly not any time soon!
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Old 8th Mar 2012, 19:42   #11
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Future proof.

However, it doesn't hurt to be able to push a GB/sec or two. Nothing wrong with loading up Windows in 3-5 seconds instead of 20-30 seconds of a fastish SSD now.... snip
What do you consider loading windows?

Not including POST, my SSD loads a ready to use win 7 in less than 10 seconds now
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Old 9th Mar 2012, 03:33   #12
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I think they mean 2 Tbps which is more then 3 times faster then current 6 Gbps.

Most test show we will need many software adjustment to take advantage of these speedy storage.
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Old 9th Mar 2012, 03:53   #13
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Old 9th Mar 2012, 08:58   #14
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Originally Posted by iwod View Post
I think they mean 2 Tbps which is more then 3 times faster then current 6 Gbps.

Most test show we will need many software adjustment to take advantage of these speedy storage.
If it's Tb/sec, then 2000/6 = 333 times faster than today's standard
If it's TB/sec, then (2000*8)/6 = 2666 times faster than today

I think there must be a typo in the press release or something. They could mean 2GB/sec, as in 16Gbit, which would be plausible!
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Old 9th Mar 2012, 13:09   #15
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I think there must be a typo in the press release or something. They could mean 2GB/sec, as in 16Gbit, which would be plausible!
Yeah, looks like the release was wrong: SATA-IO says 16Gb/s: http://www.sata-io.org/technology/sataexpress.asp

I'll stick a correction in.
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Old 14th Mar 2012, 10:01   #16
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I just want a fast and reliable SSD in my rig. I am fed up of listening to the sound of my mechanical HDD inside my computer case. I cant wait until I can buy a 500GB SSD at a resaonable price.
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Old 14th Mar 2012, 12:44   #17
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16Gb = 2GB bandwidth. So that's nearly 4 x current speeds. Not too shabby.
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Old 15th Mar 2012, 22:14   #18
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Future proof.

Current RAM speeds are roughly 20-40GB/sec compared to SATA6Gbps, which is roughly .6GB/sec max real transfer rate.
forgot to correct that for you before

Sata 6 is 600MB/s not 6GB/s, around 550MB/s useable

DDR3 is more like 15GB/s ish or 15000 Ish MB/s,
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