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Good Job for Seagate: 2.5-Inch Hard Disk Platter at Record 1TB

To get 2TB HDD in 7mm-height unit

Seagate Technology plc has achieved a milestone in areal density with a new HDD that can offer 2TB of capacity in a slim 7mm package.

This achievement is significant because in final product form it will give OEMs freedom to design a new generation of mobile products that are extremely thin, light-weight, fast, power-efficient and cost-effective.
 
In an industry first, our engineers have been able to boost areal density to 1TB per platter in a 2.5-inch form factor, which will give OEMs the flexibility to design and build virtually any kind of mobile device they can envision, with plenty of storage to boot,” said Mark Re, Seagate’s CTO. “Combining new mechanical firmware architectures, with state of the art heads, media and electronic design, this technology is a real game changer- providing four times more capacity than a 0.25TB SSD at a substantially lower cost.”
 
The new drive technology is the first to incorporate recording-subsystem components-head, media, preamp, channel-to achieve greater areal densities, well ahead of competitive offerings. Its advanced, high-spatial efficiency mechanics deliver lightweight, low acoustics and mechanical robustness capable of new levels of drive stability even when subject to intense shock and vibrations.
 
The new drive weighs 3.17oz., and is 25% lighter than the previous generation of Seagate’s mobile HDD products. Smaller drives free up valuable space in a mobile device to accommodate additional designed-in features, such as bigger batteries, more memory and better air circulation. With up to 2TB of space, the drive can also enable affordable high capacity storage – storing more than 500,000 songs, 320,000 photos, 240 hours of high definition video or 26 hours of 4K ultra-high definition content.
 
The notebook PC continues to be an important productivity tool, especially for content creators who are producing an enormous volume of data,” said John Rydning, IDC’s research VP for HDDs. “Seagate’s new ultra-mobile HDD technology is ground breaking for Seagate and the HDD industry, making it possible for notebook PC users to have generous storage capacity in a thin and light PC.”
 
While the new areal density milestone was achieved in a traditional HDD format, Seagate is also examining a hybrid format as well. A hybrid version would combine NAND flash with Seagate’s proprietary learning algorithms, to deliver supreme performance and a richer consumer experience at a much lower cost than comparable SSDs.

Comments

This Seagate 2TB Ultra Mobile hard disk drive is not the highest capacity HDD in the 2.5-inch form factor. The current record is 4TB in a device released last June by Samsung/Seagate into a unit 15mm high with five disks, each one at 800GB, and ten heads.     

More important here is the worldwide record reached in areal density thanks to Shingled Magnetic Recording - and not PMR: 1.32 terabit per square inch on the 65mm-diameter platter.

The increase in areal density in announced HDD products
from 3Q14 to 3Q15 is almost 60%
coughlin
(Source: Tom Coughlin)

The 6Gb SATA 2TB Ultra Mobile, with 16MB of RAM cache and 5,400rpm rotational speed estimated by Trendfocus, is based on SMR technology which means more suited for read than write applications. But Seagate intends also to release another more expansive version of this drive with SSD cache and then offering probably the better write performance, at least as good as as current PMR HDDs.

No price and delivery date of the new devices were revealed by the manufacturer.

We are waiting also for a less expansive 5mm-high one-disk version at 1TB and probably other ones with more than two platters. As it's possible today to pack 5 disks into a 15mm-high 2.5-inch HDD, Seagate could reach a record of 5TB in this form factor.

There were already HDDs at more than 2TB in 2.5-inch form factor like Toshiba MQ03ABB300 but with four disks and 15mm high.

Does this world's highest density mobile HDD technology will be able to slow the success of SSDs for notebooks? We don't think so. About all the current 6Gb SATA 2.5-inch SSDs are 7mm high (or less) and Samsung reached also 2TB using its new 3V V-NAND technology The difference will continue to be the higher price of the flash units but with much better specs.

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