| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology for shortening a data transfer time in an optical disk array device having a plurality of optical storage media and a plurality of drives. SOLUTION: In the optical disk array device, in which redundant data are stored during data writing, verification processing is not carried out in writing, or alternatively, verification processing is carried out only at previously registered intervals. The interval for performing verification processing is changed in compliance with a retry occurrence frequency in wiring and a recovery occurrence frequency in reading. Correspondence information between a storage position in the optical storage medium and whether writing is carried out after verification or not is stored, and consistency of a bit written without performing verification is checked. If the bit is not consistent, a request for rewriting of the data is notified to a host computer. COPYRIGHT: (C)2004,JPO&NCIPI
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