Method for recording data freshness degrees by a tape drive
AssigneeInternational Business Machines Corporation
InventorHiroshi Itagaki
Life of this patent
Estimating the term…
Abstract
A method for recording data freshness degrees by a tape drive is disclosed. During the recording of a set of data and a data freshness degree associated with the set of data a tape recording medium, a determination is made as to whether or not a fault occurs during the recording. In response to a determination that a fault occurs during the recording, a data freshness degree of data within a faulty portion on the tape recording medium is obtained. The data freshness degree of the set of data is then immediately recorded before the faulty portion on the tape recording medium. The data freshness degree is higher than the data freshness degree of data within the faulty portion.
Claims8
A method for recording data by a tape drive, said method comprising:
- recording a set of data and a data freshness degree associated with said set of data on a tape recording medium, wherein said data freshness degree indicates how new said set of data is with respect to a set of previously-recorded data;
- determining whether or not a fault occurs during said recording of said set of data on said tape recording medium;
- in response to a determination that a fault occurs during said recording, reading a data freshness degree of data within a faulty portion on said tape recording medium in which said fault occurs;
- and
- recording said data freshness degree of said set of data immediately before said faulty portion on said tape recording medium, wherein said data freshness degree is higher than said data freshness degree of data within said faulty portion.
A tape drive comprising:
- means for recording a set of data and a data freshness degree associated with said set of data on a tape recording medium, wherein said data freshness degree indicates how new said set of data is with respect to a set of previously-recorded data;
- means for determining whether or not a fault occurs during said recording of said set of data on said tape recording medium;
- in response to a determination that a fault occurs during said recording, means for reading a data freshness degree of data within a faulty portion on said tape recording medium in which said fault occurs;
- and
- means for recording said data freshness degree of said set of data immediately before said faulty portion on said tape recording medium, wherein said data freshness degree is higher than said data freshness degree of data within said faulty portion.
Dependencies are inferred from the claim text.