Integrated data and header protection for tape drives
AssigneeInternational Business Machines Corporation
InventorsRoy Daron Cideciyan, Hisato Matsuo, Thomas Mittelholzer, Kenji Ohtani, Paul J Seger, Keisuke Tanaka
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Abstract
A method for integrating data and header protection in tape drives includes receiving an array of data organized into rows and columns. The array is extended to include one or more headers for each row of data in the array. The method provides two dimensions of error correction code (ECC) protection for the data in the array and a single dimension of ECC protection for the headers in the array. A corresponding apparatus is also disclosed herein.
Claims11
An apparatus for integrating data and header protection in tape drives, the apparatus comprising:
- an input to receive a data array organized into rows and columns;
- a column error correction code (ECC) encoder to calculate column ECC parity for the columns and extend the columns to include the column ECC parity;
- a multiplexer to add a header to each row of the data array;
- a row ECC encoder to calculate row ECC parity for the combined rows and headers and extend the rows to include the row ECC parity.
An apparatus for integrating data and header protection in tape drives, the apparatus comprising:
- an input for receiving an array of data organized into rows and columns;
- a multiplexer to extend the array to include a header for each row of data in the array;
- at least one encoder to provide two dimensions of error correction code (ECC) protection for the data in the array, and a single dimension of ECC protection for the headers in the array.
Dependencies are inferred from the claim text.