Servo pattern for skew based tape dimensional stability compensation
AssigneeInternational Business Machines Corporation
InventorsNhan Xuan Bui, Mark Alfred Lantz, Simeon Furrer, Robert Biskeborn
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Abstract
In response to a rotation of timing-based servo (TBS) patterns of a first servo band and a second servo band, heights of top and bottom portions of servo stripes of servo frames of the TBS patterns are adjusted to compensate for changes in a usable height of the servo stripes caused by the rotation.
Claims28
A method for a magnetic tape system, the method comprising:
- in response to a rotation of timing-based servo (TBS) patterns of a first servo band and a second servo band, adjusting heights of top and bottom portions of servo stripes of servo frames of the TBS patterns to compensate for changes in a usable height of the servo stripes caused by the rotation.
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A tape formatting device, the tape formatting device comprising:
- a controller;
- and
- a servo write head coupled to the controller and configured to write timing-based servo (TBS) patterns on a tape, wherein adjustments to the TBS patterns have been made during manufacturing of the servo write head via operations comprising:
- in response to a rotation of the TBS patterns of a first servo band and a second servo band adjusting heights of top and bottom portions of servo stripes of servo frames of the TBS patterns to compensate for changes in a usable height of the servo stripes caused by the rotation.
A computer program product, the computer program product comprising a computer readable storage medium having computer readable program code embodied therewith, the computer readable program code configured to perform operations in a device, the operations comprising:
- in response to a rotation of timing-based servo (TBS) patterns of a first servo band and a second servo band, adjusting heights of top and bottom portions of servo stripes of servo frames of the TBS patterns to compensate for changes in a usable height of the servo stripes caused by the rotation.
A tape, comprising:
- a magnetic medium;
- and
- a plurality of servo bands written on the magnetic medium by a servo write head, wherein servo patterns have been adjusted during manufacturing of the servo write head via operations comprising:
- in response to a rotation of TBS patterns of a first servo band and a second servo band of the plurality of servo bands, adjusting heights of top and bottom portions of servo stripes of servo frames of the TBS patterns to compensate for changes in a usable height of the servo stripes caused by the rotation.
A method for a servo write head, the method comprising:
- configuring the servo write head to write timing-based servo (TBS) patterns on a tape, wherein adjustments to the TBS patterns have been made during manufacturing of the servo write head via operations comprising:
- in response to a rotation of the TBS patterns of a first servo band and a second servo band adjusting heights of top and bottom portions of servo stripes of servo frames of the TBS patterns to compensate for changes in a usable height of the servo stripes caused by the rotation.
Dependencies are inferred from the claim text.