Storing plural data records on tape in an entity with an index e

Details Storing plural data records on tape in an entity with an index e Storing plural data records on tape in an entity with an index e

1994-01-06

1997-01-28

Epps, Georgia Y.

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

369 48, 369 58, 369 59, 360 48, G11B 700

Patent

active

055983880

ABSTRACT:
A method and apparatus for storing user data organized into a plurality of data records on tape is provided. User data is first accepted from a host computer. The user data is then organized into data groups independent of the record structure. Records are then assigned to data entities where each data entity has at least one data record. A group index is formed to which information pertaining to the records and/or entities contained within the group is written. Data is then stored on the tape in groups along with each associated group index.

REFERENCES:
patent: 4703465 (1987-10-01), Parker
patent: 4872070 (1989-10-01), Cooper et al.
David J. Van Maren, Mark J. Bianchi, and Jeffery J. Kato, Maximizing Tape Capacity by Super-Blocking, Hewlett-Packard Journal Jun. 1989 pp. 32-34.
Notes to Form PCT/ISA/210 pp. Jan. 1985.

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