Cornices Tiny Hard Drive

 
 
By Loyd Case  |  Posted 2003-11-19 Email Print this article Print
 
 
 
 
 
 
 

Cornice doesn't call it a hard drive, but their tiny "storage element" refines spinning platter technology to the nth degree. Extreme Tech reviewers take a look at the technology and what it means for consumers.

Imagine a spinning glass platter overlaid with an ultra-thin magnetic film. Then imagine a magnetic head flying above the platter, based on GMR (giant magnetoresistive) head technology originally developed for desktop and server hard drives. As that little mental picture develops, it sounds suspiciously like were talking about a hard drive. In reality, Cornice -- a startup formed by former Maxtor engineering VP Kevin Magenis -- doesnt call their tiny storage device a "hard drive." Theyve dubbed their new product a "storage element." Its likely the company believes that "hard drive" is often associated with reliability issues. The Cornice device is specifically designed as a compact storage subsystem for portable consumer electronics hardware. The first products on the market supporting the Cornice technology are digital music players, including the Rio Nitrus, Creative Labs MuVo2, and the iRiver IGP-100 (one of the few players to natively support the open-source Ogg Vorbis audio compression standard).
Other products built around the Cornice drive include the Samsung ITCAM-9 (an MPEG-4-based miniature camcorder) and the MPIO HS100 1.5GB USB portable drive from Korean manufacturer Digitalway. As we hinted at in our introduction, Cornices storage element is fundamentally based on hard drive technology. The device utilizes longitudinal magnetic recording using GMR heads, thin film, glass discs, and PRML read channels, much like current generation desktop hard drives.
Cornice specs the minimum read/write transfer rate at 4MB/sec, which is good enough for audio and even compressed video use. The tiny drive has two key attributes that make it useful to its target market: low power usage and ruggedness. Spin-up, for example, takes 207ma, roughly 1/10th that of a typical 2.5" notebook hard drive. Although idle current is a scant 30ma, the drive simply shuts down most of the time, spinning up only when the application demands it. Additionally, the storage element has no buffer, unlike traditional hard drives. This means that hardware that uses a Cornice storage element must implement its own buffering if its required. The drive connects directly to the host via a proprietary, 20-pin parallel bus. Cornice is reluctant to release the areal density or spin rate of the drive, but 1.5GB in a 1-inch diameter platter is fairly high density, if not on the bleeding edge. Since ruggedness is another key parameter, the design shouldnt be overly aggressive in its areal density spec. Given that competing 2GB-and-up devices spec 30 gigabits per square inch, the Cornice drive probably comes in at a bit less than that. Other companies have tried to ship one-inch hard drives, most notably MarQlin Corp and the GS Magicstor. MarQlin has yet to actually produce anything yet but Magicstor has been shipping 2.2GB and 2.4GB compact flash type II cards. Another similar product, Hitachis (formerly IBM Storage) Microdrive, is also available in a compact flash format. To read the full story, click here.
 
 
 
 
Loyd Case came to computing by way of physical chemistry. He began modestly on a DEC PDP-11 by learning the intricacies of the TROFF text formatter while working on his master's thesis. After a brief, painful stint as an analytical chemist, he took over a laboratory network at Lockheed in the early 80's and never looked back. His first 'real' computer was an HP 1000 RTE-6/VM system.

In 1988, he figured out that building his own PC was vastly more interesting than buying off-the-shelf systems ad he ditched his aging Compaq portable. The Sony 3.5-inch floppy drive from his first homebrew rig is still running today. Since then, he's done some programming, been a systems engineer for Hewlett-Packard, worked in technical marketing in the workstation biz, and even dabbled in 3-D modeling and Web design during the Web's early years.

Loyd was also bitten by the writing bug at a very early age, and even has dim memories of reading his creative efforts to his third grade class. Later, he wrote for various user group magazines, culminating in a near-career ending incident at his employer when a humor-impaired senior manager took exception at one of his more flippant efforts. In 1994, Loyd took on the task of writing the first roundup of PC graphics cards for Computer Gaming World -- the first ever written specifically for computer gamers. A year later, Mike Weksler, then tech editor at Computer Gaming World, twisted his arm and forced him to start writing CGW's tech column. The gaming world -- and Loyd -- has never quite recovered despite repeated efforts to find a normal job. Now he's busy with the whole fatherhood thing, working hard to turn his two daughters into avid gamers. When he doesn't have his head buried inside a PC, he dabbles in downhill skiing, military history and home theater.
 
 
 
 
 
 
 

Submit a Comment

Loading Comments...
 
Manage your Newsletters: Login   Register My Newsletters























 
 
 
 
 
 
 
 
 
 
 
Rocket Fuel