Pixie Dust Grows Drives
IBM last week touted a new disk capacity technology as magical, but at least one company owner and IBM competitors said it's overhyped and offers more capacity than needed.IBM last week touted a new disk capacity technology as magical, but at least one company owner and IBM competitors said its overhyped and offers more capacity than needed. The company said the technologywhich it calls "Pixie Dust"increases a disks capacity without causing magnetic instability. IBM began outfitting its entire line of Travelstar disk drives for notebooks with the technology last month. Current methods to increase capacity shrink a disks magnetic particles so that more can fit on the disk but cant go further because the particles would be too close to the size of a bit and would therefore be unstable and, as a result, would cause what is called a superparamagnetic effect.
With Pixie Dust, a ruthenium layer is inserted between a disks magnetized layers, allowing the particles to fit in the same space but look smaller to data bits and thus increasing capacity, according to officials of the Armonk, N.Y., company.