Tape acclimation acceleration for environmental calibration
AssigneeInternational Business Machines Corporation
InventorsKevin Bruce Judd, Eiji Ogura
Life of this patent
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Abstract
A method according to one embodiment includes measuring a baseline servo band difference (SBD) from a beginning of a tape (BOT) to an end of the tape (EOT), and storing values of the baseline SBD measurements in a memory. A shorter length of the tape that is less than an entire length of the tape is cycled a plurality of times to acclimate the shorter length of the tape. A post cycling SBD of the shorter length of the tape is determined and an acclimation change amount of the shorter length of the tape that is a difference between the baseline SBD of the shorter length and the post cycling SBD of the shorter length is determined. The method further includes adjusting the baseline SBD values based on the determined acclimation change amount.
Claims25
A method, comprising:
- measuring a baseline servo band difference (SBD) from a beginning of a tape (BOT) to an end of the tape (EOT);
- storing values of the baseline SBD measurements in a memory;
- cycling a shorter length of the tape that is less than an entire length of the tape a plurality of times to acclimate the shorter length of the tape;
- determining a post cycling SBD of the shorter length of the tape;
- determining an acclimation change amount of the shorter length of the tape that is a difference between the baseline SBD of the shorter length of the tape and the post cycling SBD of the shorter length of the tape;
- and
- adjusting the baseline SBD values based on the determined acclimation change amount.
A system, comprising:
- a processor;
- and
- logic integrated with the processor, executable by the processor, or integrated with and executable by the processor, the logic being configured to cause the processor to perform operations including:
- measuring a baseline servo band difference (SBD) from a beginning of a tape (BOT) to an end of the tape (EOT);
- storing values of the baseline SBD measurements in a memory;
- cycling a shorter length of the tape that is less than an entire length of the tape a plurality of times to acclimate the shorter length of the tape;
- determining a post cycling SBD of the shorter length of the tape;
- determining an acclimation change amount of the shorter length of the tape that is a difference between the baseline SBD of the shorter length of the tape and the post cycling SBD of the shorter length of the tape;
- and
- adjusting the baseline SBD values based on the determined acclimation change amount.
A computer program product, the computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions readable and/or executable by a controller to cause the controller to perform operations including:
- measuring, by the controller, a baseline servo band difference (SBD) from a beginning of a tape (BOT) to an end of the tape (EOT);
- storing, by the controller, values of the baseline SBD measurements in a memory;
- cycling, by the controller, a shorter length of the tape that is less than an entire length of the tape a plurality of times to acclimate the shorter length of the tape;
- determining, by the controller, a post cycling SBD of the shorter length of the tape;
- determining, by the controller, an acclimation change amount of the shorter length of the tape that is a difference between the baseline SBD of the shorter length of the tape and the post cycling SBD of the shorter length of the tape;
- and
- adjusting, by the controller, the baseline SBD values based on the determined acclimation change amount.
Dependencies are inferred from the claim text.