Scaling tape-recording areal densities to 100 Gb/in 2

  • Authors:

  • A. J. Argumedo;D. Berman;R. G. Biskeborn;G. Cherubini;R. D. Cideciyan;E. Eleftheriou;W. Häberle;D. J. Hellman;R. Hutchins;W. Imaino;J. Jelitto;K. Judd;P.-O. Jubert;M. A. Lantz;G. M. McClelland;T. Mittelholzer;C. Narayan;S. Ölçer;P. J. Seger

  • Affiliations:

  • IBM Systems and Technology Group, Tucson, Arizona;IBM Research Division, Almaden Research Center, San Jose, California;IBM Systems and Technology Group, Almaden Research Center, San Jose, California;IBM Research Division, Zurich Research Laboratory, Rüschlikon, Switzerland;IBM Research Division, Zurich Research Laboratory, Rüschlikon, Switzerland;IBM Research Division, Zurich Research Laboratory, Rüschlikon, Switzerland;IBM Research Division, Zurich Research Laboratory, Rüschlikon, Switzerland;IBM Systems and Technology Group, Tucson, Arizona;IBM Systems and Technology Group, Tucson, Arizona;IBM Research Division, Almaden Research Center, San Jose, California;IBM Research Division, Zurich Research Laboratory, Rüschlikon, Switzerland;IBM Systems and Technology Group, Tucson, Arizona;IBM Research Division, Almaden Research Center, San Jose, California;IBM Research Division, Zurich Research Laboratory, Rüschlikon, Switzerland;IBM Research Division, San Jose, California;IBM Research Division, Zurich Research Laboratory, Rüschlikon, Switzerland;IBM Research Division, Almaden Research Center, San Jose, California;IBM Research Division, Zurich Research Laboratory, Rüschlikon, Switzerland;IBM Systems and Technology Group, Tucson, Arizona

  • Venue:
  • IBM Journal of Research and Development
  • Year:
  • 2008

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Abstract

We examine the issue of scaling magnetic tape-recording to higher areal densities, focusing on the challenges of achieving 100 Gb/in2 in the linear tape format. The current highest achieved areal density demonstrations of 6.7 Gb/in2 in the linear tape and 23.0 Gb/in2 in the helical scan format provide a reference for this assessment. We argue that controlling the head-tape interaction is key to achieving high linear density, whereas track-following and reel-to-reel servomechanisms as well as transverse dimensional stability are key for achieving high track density. We envision that advancements in media, data-detection techniques, reel-to-reel control, and lateral motion control will enable much higher areal densities. An achievable goal is a linear density of 800 Kb/in and a track pitch of 0.2 µm, resulting in an areal density of 100 Gb/in2.