Tape unmounting protocol
AssigneeInternational Business Machines Corporation
InventorsTohru Hasegawa, Tsuyoshi Miyamura, Atsushi Abe, Shinsuke Mitsuma, Noriko Yamamoto, Sosuke Matsui
Life of this patent
Estimating the term…
Abstract
Described are techniques for a tape unmounting protocol. The techniques include selecting a tape for unmounting from a plurality of tape drives, where the tape for unmounting includes a remaining capacity below a first threshold and a number of migrated files below a second threshold. The techniques further include unmounting the tape for unmounting from a tape drive.
Claims20
A computer-implemented method comprising:
- accepting a request for copying a file from a first tape to a primary storage;
- selecting a second tape for unmounting from a plurality of tape drives, wherein the second tape for unmounting includes a remaining capacity below a first threshold and a number of migrated files below a second threshold;
- unmounting the second tape for unmounting from a tape drive;
- mounting the first tape on the tape drive;
- and
- performing the request by copying the file from the first tape to the primary storage using the tape drive.
A system comprising:
- one or more processors;
- and
- one or more computer-readable storage media storing program instructions which, when executed by the one or more processors, are configured to cause the one or more processors to perform a method comprising:
- accepting a request for copying a file from a first tape to a primary storage;
- selecting a second tape for unmounting from a plurality of tape drives, wherein the second tape for unmounting includes a remaining capacity below a first threshold and a number of migrated files below a second threshold;
- unmounting the second tape for unmounting from a tape drive;
- mounting the first tape on the tape drive;
- and
- performing the request by copying the file from the first tape to the primary storage using the tape drive.
A computer program product comprising one or more computer readable storage media, and program instructions collectively stored on the one or more computer readable storage media, the program instructions comprising instructions configured to cause one or more processors to perform a method comprising:
- selecting a tape for unmounting from a plurality of tape drives, wherein the tape for unmounting includes a remaining capacity below a first threshold and a number of migrated files below a second threshold;
- and
- unmounting the tape for unmounting from a tape drive.
Dependencies are inferred from the claim text.