| 摘要 |
<P>PROBLEM TO BE SOLVED: To unfailingly decrease the tartup time required between power application and recording operation initiation, in a disk array recording apparatus composed of a plurality of HDDs. Ž<P>SOLUTION: When the startup of three HDDs (for example 11 to 13) out of four HDDs 11 to 14 is completed, a startup control circuit 4 starts recording input data by using a RAID scheme, and causes a substitutional recording medium 19 to substitutionally record the data to be recorded onto the last HDD 14, which has not yet started up. Then, when the last HDD 14 starts up, the data recorded on the substitutional recording medium 19 are accessed to restore the data within a substitution period and the restored data is recorded onto the last HDD 14, wherein record address information to the last HDD 14 is recorded on the substitutional recording medium 19, and the data within the substitution period are restored by using a parity signal generated from the input data. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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