Patent Number: 8,793,552

Title: Reconstructive error recovery procedure (ERP) for multiple data sets using reserved buffer

Abstract: In one embodiment, a system includes logic adapted to read a plurality of data sets from a medium one or more times; logic adapted to store portions of some of the data sets to a reserved data buffer when the portions are correctable using C1-error correction code (ECC); logic adapted to aggregate all stored portions for each of the complete data sets to form assembled data sets; logic adapted to determine whether C2-ECC is capable of correcting all errors in the assembled data sets, to correct any remaining errors in the assembled data sets, and to send the corrected data sets to a host when C2-ECC is capable of correcting all errors in the assembled data sets; and logic adapted to reread at least a first uncorrected data set from the medium using a different setting when an error in the first uncorrected data set is not correctable.

Inventors: Katagiri; Takashi (Yokohama, JP), Nylander-Hill; Pamela R. (Tucson, AZ)

Assignee: International Business Machines Corporation

International Classification: H03M 13/00 (20060101)

Expiration Date: 7/29/12018