SATA-IO Releases SATA Revision 2.6 Specification
Anh Tuan Huynh
March 7, 2007 5:31 PM
comment(s) - last by
The new SATA Slimline connector interface
New small-form factor and mobile enhancements specified in revision 2.6
The Serial ATA International Organization, also known as SATA-IO, today announced its latest Serial ATA specification –
SATA revision 2.6 (PDF)
. The latest SATA revision 2.6 adds new physical and performance features to the previous SATA revision 2.5, also referred to as SATA 3.0Gbps, specification.
New physical features added to the SATA revision 2.6 include internal cable specifications for small-form-factor systems and mobile PC applications. SATA revision 2.6 specifies a new internal slim-line cable and connector. The new Slimline cable and connector target tightly packed small-form-factor systems. SATA-IO also defines the internal micro SATA connector with ultra mobile PCs in mind. The new internal micro SATA connector specification is for 1.8” hard drives only right now.
In addition to the small-form-factor and ultra mobile PC benefits of SATA revision 2.6, SATA-IO defines a new mini SATA multilane cable and connector. The new mini SATA multilane cable and connector specification is for internal and external SATA usage. Do not expect to see mini SATA multilane connectors on consumer desktop systems, however. SATA-IO defines the specification for use internally in high-bandwidth backplanes and externally for high-bandwidth external storage enclosures.
Physical enhancements aside, SATA revision 2.6 introduces new performance improvements to the SATA specification. Native Command Queuing, or NCQ, receives upgrades beneficial to desktop and notebook systems. NCQ priority enhancement is the latest feature and prioritizes data during complex workloads. On the mobile improvements sides of things, a new NCQ unload enhancement feature makes it way into the SATA specification. This new feature increases mobile SATA hard drive robustness, especially in drop-prone environments.
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RE: This doesn't make sense
3/8/2007 12:55:21 AM
Here's the only thing I could think of:
You're all idiots.
SATA-IO is the organization, the tech group, that publishes and devises the SATA standards.
There are currently two SATA standards:
The original SATA standard, known as SATA 1 or now SATA 150 or SATA 1.5, referring to the speed(1.5 Gbps).
There was a modified SATA standard that, for a time, was known as SATA II. The speed of this standard was 3.0 Gbps. I believe this was the SATA 2.0 specification, and certain things like NCQ were added when it was upgraded to the SATA 2.5 spec, which is what current drives are manufactured. SATA II drives are no longer called SATA II drives because of a law suit which found the SATA II label was a trademark infringement. Now, SATA II is known as SATA 3.0. It does not mean that it is the SATA 3.0 specification. It means that it is SATA with a 3.0 Gbps bus speed.
For reference, the interface is not that much faster. UDMA 133 had a speed of 1.33 Gbps. No hardware, not even 10K RPM drives, can read that fast, so all that extra bandwidth is lost, though. That's why SCSI drives have never matured past 320. Simply no need to expand the bus that wide.
The next SATA standard will be a 6.0 Gbps standard.
Really, read the Wikipedia article or something. Sheesh.
RE: This doesn't make sense
3/9/2007 12:22:50 PM
I'd mod you up, but I talk too much so I never get to vote. Well said.
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