G11B15/66

Selective index writing prior to unthreading a magnetic recording tape

A drive-implemented method according to one embodiment includes determining that unthreading of a tape is to be performed, and in response to the determination that the unthreading of the tape is to be performed, determining whether to write an index on the tape prior to unthreading the tape. In response to a determination to write the index on the tape, the index is written on the tape prior to unthreading the tape. The tape is then unthreaded. The drive-implemented method further includes receiving a write request after the unthreading, rethreading the tape, and writing data corresponding to the write request on the tape. The index stored on the tape prior to the unthreading is overwritten with the data corresponding to the write request.

SELECTIVE INDEX WRITING PRIOR TO UNTHREADING A MAGNETIC RECORDING TAPE
20180277157 · 2018-09-27 ·

A drive-implemented method according to one embodiment includes determining that unthreading of a tape is to be performed, and in response to the determination that the unthreading of the tape is to be performed, determining whether to write an index on the tape prior to unthreading the tape. In response to a determination to write the index on the tape, the index is written on the tape prior to unthreading the tape. The tape is then unthreaded. The drive-implemented method further includes receiving a write request after the unthreading, rethreading the tape, and writing data corresponding to the write request on the tape. The index stored on the tape prior to the unthreading is overwritten with the data corresponding to the write request.

Release member molding method and recording tape cartridge
10071514 · 2018-09-11 · ·

A release member molding method for mounting a metallic plate in a main body of a release member by insert-molding. The release member is to be provided to be integrally rotatable with a reel accommodated in a case, and to move a locking member from a locking position that locks rotation of the reel to an allowing position that allows rotation of the reel. The metallic plate touches a sliding protrusion portion of the locking member at a touching surface of the release member. The release member molding method includes an arranging step of arranging the metallic plate in a die and a molding step of charging a resin material into the die and molding the main body in which the metallic plate is mounted. The die contacts a portion of the metallic plate that excludes the touching surface, and the die does not contact the touching surface.

Selective index writing prior to unthreading a magnetic recording tape

A drive-implemented method according to one embodiment includes determining that unthreading of a tape is to be performed, and in response to the determination that the unthreading of the tape is to be performed, determining whether to write an index on the tape prior to unthreading the tape. In response to a determination to write the index on the tape, the index is written on the tape prior to unthreading the tape. The tape is then unthreaded.

Magnetic tape appliance with selectably always-leading head assemblies

A tape appliance includes first and second tape guide components. The tape path includes a first path portion between a tape supply reel and the first guide component, a second path portion between a tape take-up reel and the second guide component, and a joining path portion between the first and second guide components. When tape travel is in the first longitudinal direction, a first tape head module engages the tape along one of the first or second tape path portions, and a second tape head module engages the tape along the joining path portion, such that the first tape head module is the leading module. When the tape travel is in the reverse direction, the first tape head module is positioned to engage the tape along the other of the first or second tape path portions, such that the first tape head module remains the leading module.

Magnetic tape winding-up method, magnetic tape winding-up apparatus, manufacturing method of magnetic tape cartridge, and magnetic tape cartridge

A winding-up method for winding up a magnetic tape, includes: winding up the magnetic tape around a takeup reel by laying turns one on top of another while causing the magnetic tape to run; and performing a tension control of maintaining tension exerted on a wound-up magnetic tape for a predetermined time.

Magnetic tape winding-up method, magnetic tape winding-up apparatus, manufacturing method of magnetic tape cartridge, and magnetic tape cartridge

A winding-up method for winding up a magnetic tape, includes: winding up the magnetic tape around a takeup reel by laying turns one on top of another while causing the magnetic tape to run; and performing a tension control of maintaining tension exerted on a wound-up magnetic tape for a predetermined time.

System and method for archive verification according to policies

Embodiments of systems and methods for archive verification are disclosed. More specifically, embodiments of this archive verification can comprise loading media into a drive and reading data from the media to verify that the media and data on the media can be read. In one embodiment, media can be loaded into a drive and read according to a verification policy. As part of verifying that media and data on media can be read, read errors or other verification data associated with media can be obtained. Using this verification data a result for the media may be determined.

System and method for archive verification according to policies

Embodiments of systems and methods for archive verification are disclosed. More specifically, embodiments of this archive verification can comprise loading media into a drive and reading data from the media to verify that the media and data on the media can be read. In one embodiment, media can be loaded into a drive and read according to a verification policy. As part of verifying that media and data on media can be read, read errors or other verification data associated with media can be obtained. Using this verification data a result for the media may be determined.

Magnetic tape appliance with selectably always-leading head assemblies

A tape appliance includes first and second tape head modules, and a guide surface with first and second slots. The guide surface is configured such that the as the tape moves in first and reverse directions of longitudinal tape travel, the tape wraps about the guide surface, and at least two non-overlapping wrap positions of the tape engage the first slot, and at least one wrap position of the tape engages the second slot. When the tape travel is in the first longitudinal direction, the first and second tape head modules are positioned within the first and second slots, respectively, such that the first tape head module is the leading module. When the tape travel is in the reverse longitudinal direction, the first and second tape head modules are positioned within the first and second slots, respectively, such that the first tape head module remains the leading module.