Method, system, and program for storing data in a storage medium
AssigneeInternational Business Machines Corporation
InventorsPaul Greco, Glen Jaquette, James Karp, Hirokazu Nakayama
Life of this patent
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Abstract
Provided are a method, system, and article of manufacture for writing data in a tape medium having wraps. A layout of the tape is provided including at least one segment within a full length of first set of wraps for writing user data and at least one segment within a full length of a second set of wraps for writing a work copy of the user data. User data is received to write to the tape medium. Detection is made of whether data writing is occurring in a specified write mode. A work copy is written to available segments in the second set of wraps not having user data in response to the data writing occurring in the specified write mode.
Claims21
A method for writing data in a tape medium having wraps, comprising:
- providing a layout of the tape including at least one segment within a full length of first set of wraps for writing user data and at least one segment within a full length of a second set of wraps for writing a work copy of the user data;
- receiving user data to write to the tape medium;
- detecting whether data writing is occurring in a specified write mode;
- writing a work copy to available segments in the second set of wraps not having user data in response to the data writing occurring in the specified write mode.
A system for writing data in a tape medium having wraps, comprising:
- a controller capable of controlling read/write operations with respect to the tape medium and performing operations, the operations comprising:
- providing a layout of the tape including at least one segment within a full length of first set of wraps for writing user data and at least one segment within a full length of a second set of wraps for writing a work copy of the user data;
- receiving user data to write to the tape medium;
- detecting whether data writing is occurring in a specified write mode;
- and
- writing a work copy to available segments in the second set of wraps not having user data in response to the data writing occurring in the specified write mode.
An article of manufacture implementing code or logic for writing data in a tape medium having wraps, wherein the code or logic causes operations to be performed, the operations comprising:
- providing a layout of the tape including at least one segment within a full length of first set of wraps for writing user data and at least one segment within a full length of a second set of wraps for writing a work copy of the user data;
- receiving user data to write to the tape medium;
- detecting whether data writing is occurring in a specified write mode;
- writing a work copy to available segments in the second set of wraps not having user data in response to the data writing occurring in the specified write mode.
Dependencies are inferred from the claim text.