Feeds

Singapore gov think tank plots SSD takedown

1TB hybrid uses less power than SSD, could work in Ultrabooks and tablets

High performance access to file storage

The Data Storage Institute (DSI), one of the many research groups at Singapore's Agency for Science, Technology and research (A*STAR), has taken the wraps off a hybrid disk drive said to consume less power than a comparable solid state disk while also being small and light enough enough to satisfy Intel's specs for use in Ultrabooks.

The 'A-Drive' is a 2.5 inch beast just 5mm thick, with a double-sided platter bearing 500GB on each side. 32GB of solid state memory is also aboard, along with the usual hybrid drive goodies that ensure frequently-accessed files reside in flash while the Fleetwood Mac albums you can't bring yourself to delete remain on spinning rust.

DSI executive director Dr Pantelis Alexopoulos told The Reg the Institute won't manufacture or market the drive itself, because its role is to develop storage technologies that others can productise. Singapore is home to several important players in the disk-making caper - Alexopoulos said storage is responsible for 11,000 local jobs, S$8.7 billion of revenue and S$1.5 billion of annual investment. DSI's research efforts are valuable because they help to preserve the island nation's status as a spindle hub for the storage industry.

The desire to remain relevant in the face of solid state disk was therefore the prime reason for the disk's development.

“I said to the disk industry: 'You will lose the market for Ultrabooks and for tablets and you will die',” Alexopoulos said. The disk industry pushed back. Alexopoulos said Western Digital's senior management retorted with a query about whether he was building a toy or something they can actually manufacture.

Alexopoulos is confident he's achieved the latter outcome and hopes A-Drive innovations like the new axial motor in the A-Drive give disk companies a fighting chance. The new motor is said to require 70% less power than competing components, thanks to arrangements that make for simpler gearing and allow lower torque.

Power consumption is so low, Alexopoulos told The Reg it is 12 or 13 per cent lower than that required by SSDs. Alexopoulos admitted to being surprised by that achievement and said it came about once the DSI team measured the amount of energy required for wear levelling, the technique SSDs use to shunt data around cells in flash to ensure slower burnout of the drives. When researching the A-Drive, Alexopoulos said DSI found wear levelling uses plenty of power and that a well-designed magnetic disk can therefore beat the all-silicon machines' performance.

The presence of a single ring-shaped magnet is also important as radial motors, the disk industry's current favourite, use eight smaller magnets and therefore require a more elaborate manufacturing process. Alexopoulos said manufacturing the A-Drive's axial motor requires five steps, compared to other motors' 70.

Another innovation sees the drive's CPU use its chassis as a heat sink. The chassis itself has been shaped to reduce vibration. A new head manufacturing process means more accurate reads and writes, while even imperfectly-made heads are recoverable for use in lower-capacity drives.

The news isn't all good as the disk spins at just 5400 RPM, well below the 15k drives beloved of storage speed freaks and also well below SSD speeds.

Singapore DSI's A-Drive

The A-Drive gets the caliper treatment

While DSI launched the drive amid considerable fanfare – Singaporean Ministers made the journey to a new five-star resort for its unveiling - Alexopoulos isn't sure if the drive will ever become productised. That's not a problem, as DSI is already discussing how various elements of its design could be used by component-makers that supply the big disk-makers. DSI has already had nibbles from the likes of Nidec, the globe's dominant drive motor maker.

System builders are also in DSI's sights, thanks in part to Intel apparently noting at a recent Beijing event that the A-Drive may not be an SSD, but ticks all the boxes to meet the Ultrabook specification.

Alexopoulos also said Taiwanese tablet-makers are considering the drive, as a one-terabyte tablet is an impressive differentiator given the locked-down Surface and iPad hardware specs. DSI has even run up a demonstration unit of the drive in the role of a small wireless NAS serving data to Android devices. Another potential application will see the drive paired with a small e-ink screen to form an iPod challenger with what Alexopoulos said could be seven days of battery life.

The data centre is also in DSI's sights, as it is keenly aware that a thin, cool, disk drive can deliver the desirable outcome of \greater storage densities in arrays.

Just when the A-Drive will land in the data centre or any other application is hard to say. But Alexopoulos, a suave Greek expat and former CTO of Maxtor, is very persuasive and feels Apple's recent decision to slot a hybrid drive into the iMac has given his baby a better chance of success.

And as your correspondent's taxi departed Sentosa Island, a government-decreed leisure zone dotted with theme parks, golf courses and resort hotels promoted as 'Asia's favourite playground', it was hard to imagine the A-Drive will not bob up somewhere, sometime soon. ®

The Reg travelled to Singapore for the Canalys Channels Forum. The A-Drive's launch conveniently took place after the Forum's final session.

High performance access to file storage

More from The Register

next story
Seagate brings out 6TB HDD, did not need NO STEENKIN' SHINGLES
Or helium filling either, according to reports
European Court of Justice rips up Data Retention Directive
Rules 'interfering' measure to be 'invalid'
Dropbox defends fantastically badly timed Condoleezza Rice appointment
'Nothing is going to change with Dr. Rice's appointment,' file sharer promises
Cisco reps flog Whiptail's Invicta arrays against EMC and Pure
Storage reseller report reveals who's selling what
Bored with trading oil and gold? Why not flog some CLOUD servers?
Chicago Mercantile Exchange plans cloud spot exchange
Just what could be inside Dropbox's new 'Home For Life'?
Biz apps, messaging, photos, email, more storage – sorry, did you think there would be cake?
IT bods: How long does it take YOU to train up on new tech?
I'll leave my arrays to do the hard work, if you don't mind
prev story

Whitepapers

Mainstay ROI - Does application security pay?
In this whitepaper learn how you and your enterprise might benefit from better software security.
Five 3D headsets to be won!
We were so impressed by the Durovis Dive headset we’ve asked the company to give some away to Reg readers.
3 Big data security analytics techniques
Applying these Big Data security analytics techniques can help you make your business safer by detecting attacks early, before significant damage is done.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Mobile application security study
Download this report to see the alarming realities regarding the sheer number of applications vulnerable to attack, as well as the most common and easily addressable vulnerability errors.