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-   -   The future of SATA on a PCIe? (http://www.hardwarecanucks.com/forum/storage/60745-future-sata-pcie.html)

ShinraCorp April 17, 2013 01:51 PM

The future of SATA on a PCIe?
 
According to SATA IO (the organization that makes SATA) It is almost impossible for a 4th Generation SATA to exist (12 Gb/s) because of the silicon limitations. So they're making a SATA Express interface, meaning it's going to take a PCIe port and use it as a storage solution. So really the future of Motherboards will not come with with the next generation of SATA ports, just hopefully there will be a SATA Express card with it. The SATA Express can go up to 16 Gb/s right now, and since PCIe technology can improve, so can SATA Express.

While this might be old news to some, I just figured this out after the supposed Intel 9-Series Chipset will support SATA Express with their Broadwell CPU.

Hopefully the pricing won't be to high.

enaberif April 17, 2013 02:16 PM

Quote:

Originally Posted by ShinraCorp (Post 703894)
According to SATA IO (the organization that makes SATA) It is almost impossible for a 4th Generation SATA to exist (12 Gb/s) because of the silicon limitations. So they're making a SATA Express interface, meaning it's going to take a PCIe port and use it as a storage solution. So really the future of Motherboards will not come with with the next generation of SATA ports, just hopefully there will be a SATA Express card with it. The SATA Express can go up to 16 Gb/s right now, and since PCIe technology can improve, so can SATA Express.

While this might be old news to some, I just figured this out after the supposed Intel 9-Series Chipset will support SATA Express with their Broadwell CPU.

Hopefully the pricing won't be to high.

They already exist. Its called a RevoDrive

ShinraCorp April 17, 2013 02:33 PM

Yes and no the RevoDrive is a PCI-E SSD. The SATA-E is a card that features SATA ports, it'll still use cables to connect to storage devices. But it can also be (according to the diagram) be connected directly to the SATA-E without a cable.

SATA-E Connector Matrix

lowfat April 17, 2013 07:16 PM

The RevoDrive is 2+ SATA controlled SSDs on a PCIe bridge. Each controller still has the limits of SATA 6Gbps.

AkG April 17, 2013 08:02 PM

Im actually very interested in the new SAS SSDs....that are 12GB/s SAS. Now THAT would be interesting to see make it to upper mainstream consumer and out of enterprise circles.

At some point yes, we will have to see a new beefy PCH come about or a daughter-card as SATA 6Gb/s is already a bottleneck and AMD/Intels controllers are not able to keep up with demands. Only time will tell on what tech becomes dominant. :)

geoc April 17, 2013 11:15 PM

Aren't a lot of our on-board devices on our motherboards just PCI/PCI-E components with direct connection the interface controller anyways? Moving SATA to PCI-E would just mean that future SATA ports would take a chunk out of the PCI-E controller's bandwidth. It would still be onboard

AkG April 18, 2013 06:56 AM

Yup. They get their own lanes. What SATA-E will do is basically split off another piece of the PCH and be a discrete controller chip, with the 'PCH 2.0' for things like usb and the other thangs. BUT if mfg'ers have to add another chip...I am kinda hoping they also opt for SAS 12GB/s. So instead of a XYZ chip for additonal SATA 6 ports and a chip for SATA-E...we get SAS and maybe SATA-E. Id honestly be happy with either but SAS 12GB/s is really showing some nice potential.

Soultribunal April 18, 2013 08:01 AM

Quote:

Originally Posted by AkG (Post 704051)
Yup. They get their own lanes. What SATA-E will do is basically split off another piece of the PCH and be a discrete controller chip, with the 'PCH 2.0' for things like usb and the other thangs. BUT if mfg'ers have to add another chip...I am kinda hoping they also opt for SAS 12GB/s. So instead of a XYZ chip for additonal SATA 6 ports and a chip for SATA-E...we get SAS and maybe SATA-E. Id honestly be happy with either but SAS 12GB/s is really showing some nice potential.

I'd rather have controllers simplified and streamlined instead of added or slaved on to other channels.
So my hope is too that SAS perhaps migrates itself into the desktop applications.

Time, will tell.

-ST

geoc April 18, 2013 10:20 AM

Well, if they do switch to SAS, cable manufacturers will make a nice sum selling SFF-8481's


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