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Volume 52, Number 4/5, Page 513 (2008)
Storage Technologies and Systems |
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Scaling tape-recording areal densities to 100 Gb/in2 |
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by 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
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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. |
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