Fujitsu to sell 200G-byte, 2.5-inch hard disks in 2007

Fujitsu plans to start selling 200G-byte hard disks for laptops in early 2007, using a new type of recording technology.

Fujitsu is planning to sell 2.5-inch hard disk drives with a capacity of 200G bytes in the first half of 2007, the company said Tuesday.

The disks, intended for use in notebook PCs, will consist of two disk platters that will store up to 100G bytes each, for a total of up to 200G bytes. The largest capacity 2.5-inch drives the company currently sells store 120G bytes, according to Fred Hirose, a spokesman for Fujitsu.

The higher capacity will be achieved through the use of perpendicular recording technology in the new disks, Fujitsu said.

Perpendicular recording is a method of storing information using magnetic fields to represent each bit. In disks that are commercially available today, the bits, or magnetic fields, lay flat on the disk surface. In drives using perpendicular recording, the bits stand upright. Because they take less space, more bits can be packed on the disk, and so more recording capacity is available.

How many bits can be crammed in a certain amount of space is called areal density and this expressed in bits per square inch. Fujitsu's disks using perpendicular technology will have areal densities of around 150G bits per square inch, the company said. Its current 2.5-inch notebook drives have an areal density of 105G bits per square inch, Hirose said.

Fujitsu is the fourth major hard disk maker to have announced plans to sell drives using perpendicular technology. Toshiba said late last year that it will start selling 1.8-inch drives using the technology in the middle of this year. This April, Hitachi Global Storage Technologies said it was testing a 100G-byte, 2.5 inch drive, and Seagate Technology said it would start selling drives using the new technology later this year.

In 2004, Fujitsu had 16.5 percent of the global market for 2.5-inch drives, behind Hitachi with 49.1 percent and Toshiba with 34.5 percent, according to market researcher IDC.

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Paul Kallender

IDG News Service
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