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Not many motherboards support new standard yet

Seagate is launching today the latest in the  Barracuda family of 7200 RPM hard disk drives. The Barracuda XT is the first drive to market that supports SATA interface speeds of up to 6Gbps. 

The 2TB monster features a large 64 MB cache, which is the largest seen on a regular HDD. However, several SSDs already use 128MB caches, and at least one controller design in the works is capable of accessing up to 256MB of cache. It is these large and fast caches that are driving SATA standards forward.
 
The latest version of Seagate's SeaTools software allows for short-stroking, in which data is stored only on the outer tracks of the drive, allowing greater access speed at a reduction in capacity. The company claims that a short-stroked Barracuda XT using 1TB of storage will be able to compete with a 10k RPM Velociraptor drive from competitor Western Digital.

The company is targeting high performance and gaming PCs, low cost servers for SMBs, and external storage applications using eSATA for the new drive. Seagate expects almost 20% of all HDDs sold in 2010 will have a capacity of  1TB or greater.

The new drive (model ST32000641AS) comes with a 5-year warranty at a MSRP of $299. It should be available at retail by the end of this week.

Despite all the enthusiasm from Seagate, it will be SSDs that see the greatest performance jump with the move to the next generation for the SATA interface. Several SSDs are already hitting the limits of SATA II when reading from their cache.

Adoption of the new SATA standard is currently slow, as the ASUS P7P55D is the only motherboard that is natively capable of support 6Gbps. Older motherboards are capable of such speeds only through the use of a PCIe adapter card.

The problem is that motherboard manufacturers are waiting for a new I/O Controller Hub (ICH) from Intel. Commonly known as a southbridge, the new ICH is expected to support new technologies such as SuperSpeed USB 3.0 and SATA 6Gbps. AMD is also working on a new southbridge to support these technologies.



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RE: ok so how about
By afkrotch on 9/22/2009 2:32:29 AM , Rating: 2
quote:
I don't honestly see the point in making faster and faster standard hard drivers. SSD's are here, they are viable, and they are already cheap enough.


Viable? $300 for this 2 TB drive or $6000 for four 512 GB SuperTalent SSDs. Yep, sounds viable and cheap enough.

quote:
Standard hard drives will, however, be viable for servers for a long time. However any serious server will be running SCSI anyway, so these drives don't apply.


Except that many servers support SATA or SAS. Many companies will use a backup array using SATA, where performance isn't necessary. They simply require a mass amount of storage and it's on the cheap.


RE: ok so how about
By MrPoletski on 9/24/2009 10:13:30 AM , Rating: 2
quote:
Viable? $300 for this 2 TB drive or $6000 for four 512 GB SuperTalent SSDs. Yep, sounds viable and cheap enough.


Those 4 SSD's in RAID 0 will make your PC so fast you'd think you're running your entire PC from a RAM drive.

That would be nearly 1GB/s transfer rate. You could read your entire windows 7 install in under 5 seconds.

That's officially 'stupid fast'.


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