Detection of off-track reads between wraps located in different tape partitions
AssigneeInternational Business Machines Corporation
InventorsSetsuko Masuda, Tsuyoshi Miyamura
Life of this patent
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Abstract
A computer-implemented method for incrementing a tape write pass (WP) value includes identifying an action that requires incrementing a tape WP value on a magnetic tape storage device. The computer-implemented method further includes, in response to identifying the action that requires incrementing the tape WP value on the magnetic tape storage device: assigning a new tape WP value to a dataset based, at least in part, on a partition number corresponding to the data partition in which the dataset is written to.
Claims20
A computer-implemented method for incrementing a tape write pass (WP) value, the computer-implemented method comprising:
- identifying an action that requires incrementing a tape WP value on a magnetic tape storage device;
- and
- responsive to identifying the action that requires incrementing the tape WP value on the magnetic tape storage device:
- assigning a new tape WP value to a dataset, that when divided by a total number of data partitions created on the magnetic tape storage device, has a remainder value equal to a partition number corresponding to a data partition in which the dataset is written to.
The computer-implemented method of 1, wherein an action that requires incrementing a WP value associated with a dataset written to a data partition on a magnetic tape storage device is selected from the group consisting of:
- appending a dataset recorded on a data partition, rewriting a dataset recorded on a data partition, increase in wrap number when data writing, and switching write operations between data partitions.
A computer program product for incrementing a tape write pass (WP) value, the computer program product comprising one or more computer readable storage media and program instructions stored on the one or more computer readable storage media, the program instructions including instructions to:
- identify an action that requires incrementing a tape WP value on a magnetic tape storage device;
- and
- responsive to identifying the action that requires incrementing the tape WP value on the magnetic tape storage device:
- assign a new tape WP value to a dataset, that when divided by a total number of data partitions created on the magnetic tape storage device, has a remainder value equal to a partition number corresponding to a data partition in which the dataset is written to.
A computer system for incrementing a tape write pass (WP) value, the computer system comprising:
- one or more computer processors;
- one or more computer readable storage media;
- computer program instructions;
- the computer program instructions being stored on the one or more computer readable storage media for execution by the one or more computer processors;
- and
- the computer program instructions including instructions to:
- identify an action that requires incrementing a tape WP value on a magnetic tape storage device;
- and
- responsive to identifying the action that requires incrementing the tape WP value on the magnetic tape storage device:
- assign a new tape WP value to a dataset, that when divided by a total number of data partitions created on the magnetic tape storage device, has a remainder value equal to a partition number corresponding to a data partition in which the dataset is written to.
Dependencies are inferred from the claim text.