Method and apparatus for optimizing access to coded indicia hier

Details Method and apparatus for optimizing access to coded indicia hier Method and apparatus for optimizing access to coded indicia hier

1998-06-01

2000-05-30

Yoo, Do Hyun

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

711159, 711160, G06F 1200

Patent

active

060702257

ABSTRACT:
Access can be optimized to data strings hierarchically organized on a single disk drive where the data strings are address map defined and recorded in bands of contiguous tracks on a frequency usage basis. The bands are arranged such that each of the most frequently used strings are out-of-phase recorded several times on a counterpart track where the band is located toward the outer disk diameter. The least frequently used strings and sequential data strings are stored elsewhere on the same or other surfaces. A group of three or more bands provides for a more refined partitioning of the data strings on a frequency of usage or a recency of usage basis. The read/write transducer has its idle position over the outer diameter.

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