http://blogs.zdnet.com/storage/?p=349&tag=nl.e539
Posted by Robin Harris @ 11:19 pm August 4th, 2008
Disk vendors have a rough idea of how other to reach 10 TB drives within 10 years. But what about 2 years? Hitachi global storage technologies has announced that they have achieved 2 1/2 times the current commercial recording density in a laboratory demonstration.
What does that mean for you? How about a 1 TB 2 1/2 inch disk?
Multipronged approach
To achieve vertical recording density of over 610 GB/per square inch the HGST engineers had to improve on existing technology. Current recording density is about 250 GB/per square inch.
In the laboratory demonstration the linear recording density is 1.6 million bits per inch and the track density is 381,000 tracks per inch. The read head has a width of 40 nm, a feature size smaller than Intel’s latest CPU process technology.
Notable improvements that HGST made are: