Western Digital releases samples of its thinnest hybrid drive for Ultrabooks

WD's hybrid drive will provide a performance boost in a sought-after form factor for Ultrabook manufacturers

Western Digital on Monday announced what it said is the industry's thinnest hybrid drive for Ultrabooks, a 5mm-thick model with 500GB of storage capacity.

The drives, with a 2.5in form factor, feature hybrid technology, which combines a spinning disk with NAND flash.

WD said it developed the new hybrid drive so it would be slim enough for integration into today's thinnest notebook PCs, which feature Instant-On and application performance similar to today's client solid state drives (SSDs).

The new hybrid technology will be showcased during WD's Investor Day, taking place this Thursday.

The new hybrid drive is aimed at notebooks using Intel's Ultrabook specifications. These specifications include Ultrabook Responsiveness Requirements, which set a higher level of performance than a notebook with a hard drive can offer.

In order to achieve higher performance, Ultrabooks must either have two drive bays, one for a hard disk drive and the other for a low-capacity solid-state drive (SSD) cache drive, or a single bay for a hybrid drive.

In a news release, WD stated that unlike dual-drive designs, its hybrid technology provides single-unit design homogeneity that Ultrabook system manufacturers "have long sought from the storage industry."

Hybrid drives, like Seagate's Momentus XT, use a small amount of flash as a cache element, to increase read and write performance.

WD declined to say how much NAND flash it is using in its hybrid drive.

Like Seagate's Momentus XT, WD's hybrid drive ports the operating system and most frequently used applications onto the flash memory, while files and other less frequently used data are stored on the hard disk portion of the drive. The result of systems' using cache SSDs is a lower cost laptop or netbook with the same or similar performance as a laptop with just an SSD.

The magnetic disk on WD's new hybrid drive backs up all files residing in the NAND, protecting the user from inevitable NAND wear and preserving it for the more hot data handling. WD's hybrid technology works in conjunction with the PC's operating system to deliver higher performance than current hybrid offerings while minimizing NAND wear to allow the use of less expensive MLC NAND.

Intel, Micron, and OCZ are putting out cache SSDs and Lenovo, Asus, Acer, Hewlett-Packard and Dell are beginning to build laptops and "Ultrabooks" to use them. For example, Lenovo's ThinkPad and ThinkPad Edge notebooks support cache SSDs, including models T420, T420s, T520, W520, X220, X1, Edge 220s, Edge 320, Edge 420, Edge 420s, and the Edge 520.

The Asus Zenbook UX 32VD combines up to a 500GB hard drive with a 24GB SSD.

WD began shipping 7mm thick hard drives for thin-profile notebooks earlier this year. Historically, standard notebook hard drives have been 9.5 mm.

The new 5mm hybrid hard drives offer 50 per cent less volume compared to current 9.5 mm hard drives and at one tenth the cost of similar capacity SSDs, WD said.

"Acer is partnering with WD to bring advanced notebook performance and capacity in the smallest form factor," David Lee, associate vice president of the Mobile Computing Product business unit at Acer, said in a statement. "It's a part of our ongoing commitment to present leading technology that ultimately improves the total user experience of our customers."

Lucas Mearian covers storage, disaster recovery and business continuity, financial services infrastructure and health care IT for Computerworld. Follow Lucas on Twitter at @lucasmearian or subscribe to Lucas's RSS feed. His e-mail address is lmearian@computerworld.com.

See more by Lucas Mearian on Computerworld.com.

Read more about data storage in Computerworld's Data Storage Topic Center.

Join the newsletter!

Or

Sign up to gain exclusive access to email subscriptions, event invitations, competitions, giveaways, and much more.

Membership is free, and your security and privacy remain protected. View our privacy policy before signing up.

Error: Please check your email address.
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.
Lucas Mearian

Lucas Mearian

Computerworld (US)
Show Comments

Brand Post

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Tom Pope

Dynabook Portégé X30L-G

Ultimately this laptop has achieved everything I would hope for in a laptop for work, while fitting that into a form factor and weight that is remarkable.

Tom Sellers

MSI P65

This smart laptop was enjoyable to use and great to work on – creating content was super simple.

Lolita Wang

MSI GT76

It really doesn’t get more “gaming laptop” than this.

Jack Jeffries

MSI GS75

As the Maserati or BMW of laptops, it would fit perfectly in the hands of a professional needing firepower under the hood, sophistication and class on the surface, and gaming prowess (sports mode if you will) in between.

Taylor Carr

MSI PS63

The MSI PS63 is an amazing laptop and I would definitely consider buying one in the future.

Christopher Low

Brother RJ-4230B

This small mobile printer is exactly what I need for invoicing and other jobs such as sending fellow tradesman details or step-by-step instructions that I can easily print off from my phone or the Web.

Featured Content

Product Launch Showcase

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?