Writing synchronized data to magnetic tape

Dynamic magnetic information storage or retrieval – General processing of a digital signal – Data in specific format

Reexamination Certificate

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Details

C360S074100, C710S006000, C710S052000, C710S055000

Reexamination Certificate

active

11041699

ABSTRACT:
Synchronized data is written to magnetic tape while reducing the number of backhitches. A controller detects a pattern of synchronizing events for received data records to be written to tape; writes each transaction of data records to the magnetic; tape; accumulates the synchronized transactions in a buffer; and subsequently recursively writes the accumulated transactions of data records from the buffer to the magnetic tape in a sequence. A single backhitch may be employed to place the recursively written accumulated data records following the preceding data, maximizing performance and capacity.

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“Variable IBG Mode for Tape Drive”, IBM Technical Disclosure Bulletin, vol. 25, No. 6, Nov. 1982, pp. 2880.
“Method for Transferring Large Amounts of Data to Streaming Tapes”, IBM Technical Disclosure Bulletin, vol. 31, No. 6, Nov. 1988, pp. 341-342.

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