Tape device and controller
AssigneeFujitsu Limited
InventorTaketoshi Yoshida
Life of this patent
Estimating the term…
Abstract
A tape device includes: a tape drive configured to read and write data to a tape medium; and a processor configured to: determine, when requested to read data from a first segment and a second segment on the tape medium, a data amount in a third segment located between the first segment and the second segment; compare the data amount with a threshold value that is determined based on a reading characteristic of the tape drive; instruct the tape drive, when the data amount is the threshold value or more, to read data from the first segment, skip the third segment, and read data from the second segment; and instruct the tape drive, when the data amount is less than the threshold value, to continuously read data from the first segment, the third segment, and the second segment.
Claims9
A tape device comprising:
- a tape drive configured to read and write data to a tape medium;
- and
- a processor configured to:
- determine, when requested to read data from a first segment and a second segment on the tape medium, a data amount in a third segment located between the first segment and the second segment;
- compare the data amount with a threshold value that is determined based on a reading characteristic of the tape drive;
- instruct the tape drive, when the data amount is the threshold value or more, to read data from the first segment, skip the third segment, and read data from the second segment;
- and
- instruct the tape drive, when the data amount is less than the threshold value, to continuously read data from the first segment, the third segment, and the second segment.
A controller comprising:
- a memory;
- and
- a processor coupled to the memory and the processor configured to:
- determine, when requested to read data from a first segment and a second segment on a tape medium, a data amount in a third segment located between the first segment and the second segment;
- compare the data amount with a threshold value that is determined based on a reading characteristic of a tape drive that reads and writes data to the tape medium;
- instruct the tape drive, when the data amount is the threshold value or more, to read data from the first segment, skip the third segment, and read data from the second segment;
- and
- instruct the tape drive, when the data amount is less than the threshold value, to continuously read data from the first segment, the third segment, and the second segment.
A non-transitory computer-readable recording medium having stored therein a program that causes a computer to execute a process, the process comprising:
- determining, when requested to read data from a first segment and a second segment on a tape medium, a data amount in a third segment located between the first segment and the second segment;
- comparing the data amount with a threshold value that is determined based on a reading characteristic of a tape drive that reads and writes data to the tape medium;
- instructing the tape drive, when the data amount is the threshold value or more, to read data from the first segment, skip the third segment, and read data from the second segment;
- and
- instructing the tape drive, when the data amount is less than the threshold value, to continuously read data from the first segment, the third segment, and the second segment.
Dependencies are inferred from the claim text.