Tape header protection scheme for use in a tape storage subsystem

US8929014B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8929014-B2
Application numberUS-201313909973-A
CountryUS
Kind codeB2
Filing dateJun 4, 2013
Priority dateJun 4, 2013
Publication dateJan 6, 2015
Grant dateJan 6, 2015

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Abstract

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In one embodiment, a system for integrating data and header protection in tape recording includes a processor and logic adapted to: provide a data array organized in rows and columns, each row of the data array including four interleaved C1 codewords (CWI-4), add a header to each row of the data array, each header including a CWI-4 Designation (CWID) which indicates a location of the CWI-4 within the data array, calculate ECC parity for at least one C1 codeword in each of the headerized rows, and modify the headerized rows to include the ECC parity, wherein each modified row includes four interleaved codewords, at least one codeword being a C1′ codeword which includes ECC parity for a data portion of a C1 codeword and a portion of a header, wherein none of the CWIDs are split across multiple C1′ codewords in a single modified row.

First claim

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What is claimed is: 1. A system for integrating data and header protection in tape recording, the system comprising a processor and logic integrated with and/or executable by the processor, the logic being adapted to: provide a data array organized in rows and columns, each row of the data array comprising four interleaved C1 codewords (CWI-4); add a header to each row of the data array to form headerized rows, each header comprising a CWI-4 Designation (CWID) which indicates a…

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What does patent US8929014B2 cover?
In one embodiment, a system for integrating data and header protection in tape recording includes a processor and logic adapted to: provide a data array organized in rows and columns, each row of the data array including four interleaved C1 codewords (CWI-4), add a header to each row of the data array, each header including a CWI-4 Designation (CWID) which indicates a location of the CWI-4 with…
Who is the assignee on this patent?
IBM
What technology area does this patent fall under?
Primary CPC classification G11B20/1833. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Jan 06 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).