Hitachi recently announced it had successfully written and retrieved data at a 612 gigabytes/per square inch ration on a magnetic hard drive media using perpendicular recording,
Perpendicular magnetic recording is now the current mainstream HDD technology. Hitachi GST demonstrated 230 Gbit/in2 in April 2005, 345 Gbit/in2 in September 2006, and has now shown extendability to 610 Gbit/in2. This growth supports the theory that technology can support storage capacity growth of 40% annually. It has been predicted, however, that the current perpendicular recording, which uses a continuous film media will eventually reach a limit in achievable recording density, and therefore, new head and media using alternative technology such discrete track recording, bit patterned media and thermally-assisted recording, are also being considered. These new methods are still being developed, but hold potential for much greater advancements in areal density growth.
Please, sir, may I have some more?
- August 14, 2008 @ 23:29:09 [Current Revision] by Brian Carnell
- August 14, 2008 @ 23:28:18 by Brian Carnell