Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate
2001-10-01
2004-03-23
Mizrahi, Diane D. (Department: 2175)
Data processing: database and file management or data structures
Database design
Data structure types
C707S793000
Reexamination Certificate
active
06711580
ABSTRACT:
FIELD OF THE INVENTION
Applicant's invention relates to an apparatus and method to record information on a data storage medium using buffered file marks.
BACKGROUND OF THE INVENTION
Automated media storage libraries are known for providing cost effective access to large quantities of stored media. Generally, media storage libraries include a large number of storage slots in which are stored data storage media. The portable data storage media are typically housed in a portable container, such as a tape cartridge, an optical cartridge, and the like. One (or more) accessors typically access the data storage media from the storage slots and deliver the accessed media to a data storage drive for reading and/or writing data on the accessed media. Suitable electronics operate the accessor(s) and operate the data storage drive(s) to transmit to, and/or to receive data from, an attached on-line host computer system.
In a conventional automated media storage library, the storage slots are arranged in a planar orthogonal arrangement forming a “wall” of storage slots for holding data storage media. The plane may be a flat plane, or may be a cylindrical plane. To double the storage capacity, two “walls” of storage slots may be provided on either side of the accessor.
A number of different companies manufacture automated media storage libraries today, each model displaying various different features. One example is the IBM 3494 Media Storage Library. Some of the automated media storage libraries have dual or multiple accessors to provide a level of redundancy and/or improved performance.
What is needed, however, is a data management system, method, and apparatus and method to expedite the recording of information provided by a host computer onto a data storage medium, particularly where that information comprises a plurality of individual files.
SUMMARY OF THE INVENTION
Applicants' invention includes a method to dispose information on a sequential medium, such as a tape, using buffered tape marks. Applicants' method includes the steps of providing information from a host computer to a tape library, where that information includes one or more tape marks, storing that information in one or more memory buffers, and transferring that information from those one or more memory buffers to a data storage medium.
Applicants' invention further includes a data storage device which includes a computer useable medium having computer readable program code disposed therein for disposing information on a data storage medium using buffered tape marks. Applicants' invention further includes a data storage and retrieval system comprising a computer useable medium having computer readable program code disposed therein for disposing information on a data storage medium using buffered tape marks.
Applicants' invention further includes a computer program product usable with a programmable computer processor having computer readable program code embodied therein for disposing information on a tape medium using buffered tape marks.
REFERENCES:
IBM, DFSMS/MVS Version 1 Release 4, GC26-4900-05, General Information, 1980, pp. 1-167.
Dahman Kirby Grant
Eldred Kathryn Eileen
Johnson Gavin Stuart
Lynds Jon Arthur
Rhoten Wayne Erwin
Mizrahi Diane D.
Mofiz Apu
Regelman Dale F.
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