Combining this magnetic tape technology together with IBM Research Zurich's write and read heads, advanced servo control technologies and innovative signal-processing algorithms, Sony has achieved the industry's highest1 recording areal density
of 201 Gb/in2 about 20x greater than the current2 mainstream coated magnetic tape media for data storage.
Seagate began shipping today's highest areal density
disk in September 2011.
Using perpendicular recording, scientists believe that the effects of superparamagnetism can be further forestalled, which would create opportunities for continued robust growth in areal density
at a rate of about 40 percent each year.
Many of the technologies developed and used in the areal density
demonstrations are later incorporated into future tape products.
The last technology transition, perpendicular recording, improved areal density
by arranging the bits in a perpendicular fashion, thereby enabling narrower data tracks and read/write heads.
The new drive delivers the highest capacity(a)and areal density
in the 1.
Tape is indeed fortunate that magnetic disk has already demonstrated solutions to high areal density
magnetic recording while being able to leverage that for higher volumetric densities.
Toshiba will sustain the industry's ability to meet customer needs for higher areal density
, operating speed and overall drive performance through R&D that delivers cutting-edge technologies that make a difference.
One way to increase storage capacity is to increase the areal density
of the medium.
The new 30GB per platter product marks the fourth generation of areal density
leadership in the 2.
The MK3252GSX uses an improved read-write head and enhanced magnetic layer to boost areal density
and achieves a storage capacity of 320GB.
Using magneto-resistive (MR) and Giant MR Heads (GMR), magnetic disks surpassed the areal density
of optical disks in early 1995.
Future generations of recording head technology are being developed by the thin film magnetic head industry to achieve continued advances in areal density
by using specialized materials, optimized film properties and tightly controlled film interfaces.
Magnetic disk areal density
has grown at an impressive 60% compound annual growth rate historically and has accelerated to greater than a 60% rate since 1999.
The new drive, MK1011GAH, employs perpendicular magnetic recording (PMR) technology and an improved error correction code to secure the highest2 areal density
of any 1.