Patent ID: 6185368
Filing Date: 2001-02-06
Classification: G06F,H04N

Abstract:
A data recording/reproducing apparatus for recording and reproducing data to and from a plurality of redundant disk arrays that are accessible in parallel, said apparatus having means for reconstructing in real-time corrupted data caused by an error in recording or reproducing the data, comprising:a recording/reproducing portion for recording and reproducing data to and from said plurality of redundant disk arrays; each disk array being comprised of a plurality of record mediums; said recording/reproducing portion having a plurality of data controllers connected in parallel to said plurality of redundant disk arrays through a parallel data input bus and a parallel data output bus; each of said plurality of data controllers being operable to input and output continuous real-time data;error detection means for detecting corrupted data caused by an error in recording or reproducing the data; said error detection means identifying a specific record medium wherein said error occurred; andreconstruction means for reconstructing in real-time the data which was corrupted; said reconstruction means including a controlling portion for controlling said recording/reproducing portion, wherein when said error detection means detects corrupted data, said controlling portion detects a blank time period for which a host system has not accessed the data recording/reproducing apparatus; said reconstruction means causes said recording/reproducing portion to reconstruct the data in said blank time period from the redundant disk arrays and from error correction data recorded on another record medium.