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Asrock U.2 sff-8639 adapter? |
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sparx 
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Joined: 09 Jul 2015 Location: Sweden Status: Offline Points: 32 |
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 Topic: Asrock U.2 sff-8639 adapter?Posted: 09 Jul 2015 at 3:46am |
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Both MSI and ASUS has their own M.2 to U.2 adapters. (M.2 NVME PCIe gen3 x4 - SFF-8643 to SFF-8639).
Does anyone know of any plans of Asrock to bundle or sell this?
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odiebugs
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Posted: 09 Jul 2015 at 4:02am |
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Sorry can't answer, but is there really hardware that is faster that what is out in M2.
Sata E, M2, at the moment can't smoke RAID 0 with only 2 drives, if you have 4, it blows by both. The fastest direct PCI-E 3.0 SSD has nothing in terms of the operating system, only data transfer. Booting at 6sec to get a 2 sec boot for 700.00 with the PCI. LOL Software, gaming, no great advantage, just hype.
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asrocking
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sparx
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Posted: 09 Jul 2015 at 4:11am |
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There are some great NVMe disks from several manufactorers. Read up on Intel P3700, Samsung SM1715 or Micron P420m.
They all have sustained read around 3GB/s and 2GB/s write. IOPS between 500k and closer to 1M. Show me a raid setup that will get you a million IOPS! :) Another thing is the extremely low latency with NVMe. In microseconds, not milli. Its not hype. Its the future.
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Xaltar
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Joined: 16 May 2015 Location: Europe Status: Offline Points: 24638 |
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Posted: 09 Jul 2015 at 4:25am |
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For the average user, even enthusiast these drives are still a pipe-dream. They do have phenomenal commercial value however, especially in data servers and streaming systems. I would imagine they would be massively popular with MMO servers as well given the ever increasing desire to reduce latency.
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sparx
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Posted: 09 Jul 2015 at 4:29am |
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I suspect Sata Express will die before even someone presents a drive where its useable.
Sure, U.2 is still a bit early. Not really a conformed standard. The connectivity to motherboards is a bit of a mess. But the drives are here to stay. Or atleast NVMe. It just needs to become better priced. But the Intel 750 series are a good start! And motherboard manufactorers need to start placing an SFF-8643 (with PCIe) on the boards itself. Maybe for Skylake we will see it.
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odiebugs
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Posted: 09 Jul 2015 at 4:38am |
Maybe someday well shed Sata on boards all together. The drives you posted are a lot better than the old PCI-E cards without NNMe. I was looking for the U2 hardware that you were talking about that uses the M2 Adpt. These will transfer data at blazing speed, but will they really make any difference in regular OS use. Trying to beat a 2-6 boot time no big deal, but software, editing, video, rely more on CPU and not so much any drive. But yes, you are right about the rest and for people who transfer or have Bluray files, it will save hundreds of hours moving files. |
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asrocking
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odiebugs
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Posted: 09 Jul 2015 at 4:40am |
It's useless with RAID around, the only way to go is the PCI-E bridge, like with the drives you posted.
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asrocking
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sparx
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Posted: 09 Jul 2015 at 4:45am |
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Sata itself will live on for some time. For most users its still the best priced option. And with 3D-nand prices dropping we will see some very nicely-priced disks coming. Sata express was more or less just a cry for help, since most SSDs has already reached the roof of performance. I dont think there will be any users adapting for sata express. Too bad they didnt raise the bar a bit higher.
I think the NVMe disks will be good for all different scenarios. Especially for windows swapping around in tons of small files. The differance between NVMe and SATA SSD is even bigger than the change from rotating platters to SSD. But maybe its getting harder to tell now. |
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parsec
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Posted: 10 Jul 2015 at 1:16am |
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NVMe is really the next evolution of NCQ provided by AHCI, with other important enhancements.
Instead of one 32 IO command queue, NVMe provides up to 64K IO command Submission Queues, with each queue containing up to 64K IO commands. NVMe also provides multiple IO Completion Queues, paired with a Submission Queue, that contains the data requested. Completion queues can be associated with CPU cores, so the data can be processed in parallel. In typical PC usage when using a SSD, the AHCI NCQ queue depth rarely if ever reaches four IO commands, since SSDs are so fast at providing data. So the new IO request and data queuing capability won't be used much by most of us. The Submission and Completion Queues are controlled by software (NVMe driver) which is not active during OS booting (or at least some of it) so does not make booting faster. The NVMe enhancement that will benefit PC users is its reduced processing overhead for random, small IO requests. That kind of IO is slowest in any storage device. Non-volatile storage IO is the main bottleneck in all computers, hopefully NVMe will benefit PC users and enterprise usage. |
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odiebugs
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Posted: 10 Jul 2015 at 1:27am |
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Nice post Parsec. Heavy workloads, multitasking with large amounts of data will see some real difference. Basically enterprise.
I was kinda pointing out for most people, gamers light video work, Apps, won't really enjoy the benefits of it all the time, but once in a while. Then again, when the time comes that it will be priced close to what HDD are, I bet everyone will have it.
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asrocking
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sparx wrote: