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 PostPost subject: SATA 3.0 Released        Posted: Thu May 28, 2009 12:26 am 
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The Serial ATA International Organization (SATA-IO) has just released the new Serial ATA Revision 3.0 specification. With this new 3.0 specification, the path has been paved to enable future devices to transfer up to 6Gb/sec as well has provide enhancements to support multimedia applications.


Source: http://techfragments.com/news/823/Hardware/SATA_3-0_Released_Paving_The_Way_To_6Gbsec_SATA_Devices.html

Time for an upgrade as soon as it is being manufactured widespread, I think.

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 PostPost subject: Re: SATA 3.0 Released        Posted: Thu May 28, 2009 12:32 am 
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it is not like I am getting close to sata 2 realistic max transfer speeds anyway...


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 PostPost subject: Re: SATA 3.0 Released        Posted: Thu May 28, 2009 12:47 am 
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even so, this is great news, since the HD is the slowest component of a computer.

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 PostPost subject: Re: SATA 3.0 Released        Posted: Thu May 28, 2009 12:53 am 
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Thlump wrote:
even so, this is great news, since the HD is the slowest component of a computer.


Its the slowest point because the actual hard drive is slow not the multi gb/s connection to it... didnt they only get 2gb/s on that 26 (or 24 whatever one) ssd raid0 video on youtube?


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 PostPost subject: Re: SATA 3.0 Released        Posted: Thu May 28, 2009 2:18 am 
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zamadatix wrote:
Thlump wrote:
even so, this is great news, since the HD is the slowest component of a computer.


Its the slowest point because the actual hard drive is slow not the multi gb/s connection to it... didnt they only get 2gb/s on that 26 (or 24 whatever one) ssd raid0 video on youtube?


They got 2gigaBYTE/sec on that raid setup...the theoretical max of sata2 is 3gigaBIT/sec per channel.

Nonetheless, the actual spinning disk is the slowest part of a PC, not the very wide connection between it and the motherboard, as you said. I'm guessing we'll only see this type of bandwidth be useful for 4th or 5th generation SSD's, in RAID no less...

...Of course that won't stop Western Digital and Seagate and everyone from releasing their 5400rpm "Green" Sata3 6gb/s!!! hard drives... oh the power of Marketing :)


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 PostPost subject: Re: SATA 3.0 Released        Posted: Thu May 28, 2009 3:32 am 
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Transfer speed isn't the only difference, this is right from the article that he linked to.

Quote:
* A new Native Command Queuing (NCQ) streaming command to enable isochronous data transfers for bandwidth-hungry audio and video applications
* An NCQ Management feature that helps optimize performance by enabling host processing and management of outstanding NCQ commands
* Improved power management capabilities
* A small Low Insertion Force (LIF) connector for more compact 1.8-inch storage devices
* A connector designed to accommodate 7mm optical disk drives for thinner and lighter notebooks
* Alignment with the INCITS ATA8-ACS standard


Wikipedia also says this.

Quote:
Ten channels of fast flash can actually reach well over 500 MB/s with new ONFI drives, so a move from SATA 3 Gbit/s to SATA 6 Gbit/s would benefit the flash read speeds. As for the standard hard disks, the reads from their built-in DRAM cache will end up faster across the new interface.[13]


Wikipedia's source is here: http://www.theinquirer.net/inquirer/new ... bles-speed

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Quote:
The enhancements are generally aimed at improving quality of service for video streaming and high priority interrupts. In addition, the standard continues to support distances up to a meter. The new speeds may require higher power consumption for supporting chips, factors that new process technologies and power management techniques are expected to mitigate. The new specification can use existing SATA cables and connectors, although some OEMs are expected to upgrade host connectors for the higher speeds.[14] Also, the new standard is backwards compatible with SATA 3 Gbit/s.[15]


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 PostPost subject: Re: SATA 3.0 Released        Posted: Thu May 28, 2009 4:02 am 
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While rummaging around the Internet I happened across a PDF presentation of ONFI 2.0/1 standards, which I'm assuming they're referring to.

You can see all the specs on the ONFI webpage: http://onfi.org/


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 PostPost subject: Re: SATA 3.0 Released        Posted: Thu May 28, 2009 1:26 pm 
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Very nice. I knew there were going to be more advantages to the SATA 3 standard than just speed (which we apparently can't reach yet), enough to justify upgrading sometime soon.

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 PostPost subject: Re: SATA 3.0 Released        Posted: Thu May 28, 2009 2:34 pm 
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Even though modern drives can't yet achieve these speeds on their own its nice to know manufacturers are developing for the future. I didn't know about the extra features mentioned above, they're pretty interesting. I don't like the idea of the smaller connectors though, SATA cables aren't that sturdy as it is and making them smaller will surely make that worse unless they come up with a better clipping system.

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 PostPost subject: Re: SATA 3.0 Released        Posted: Thu May 28, 2009 4:21 pm 
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I didn't read the full specifications, hopefully they do something to make the connectors stronger. I've never broken one off myself but I know plenty of people who have.


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 PostPost subject: Re: SATA 3.0 Released        Posted: Thu May 28, 2009 8:37 pm 
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I actually had a sata power connection that was so loose that the slightest tug on the wires would pull it off. I had to use a molex connector on that drive for any reliable use.

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 PostPost subject: Re: SATA 3.0 Released        Posted: Fri May 29, 2009 8:22 am 
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Andy wrote:
Even though modern drives can't yet achieve these speeds on their own its nice to know manufacturers are developing for the future. I didn't know about the extra features mentioned above, they're pretty interesting. I don't like the idea of the smaller connectors though, SATA cables aren't that sturdy as it is and making them smaller will surely make that worse unless they come up with a better clipping system.


I agree there, but the SATA connector specifications does include connector locks that locks the connector into the device. The cables that came with my RAID controllers are such cables, once you put in the cables you can't pull them out without either ripping the cable or destroying the harddrive connectors. I guess these kind of cables are not included tho to keep cost down.

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