DATA-ACCUMULATING DEVICE AND ITS CONTROL METHOD

PROBLEM TO BE SOLVED: To make it possible to quickly execute processing, when a plurality of commands are issued in the same period, in case that data are accumulated by using a plurality of HDDs as in an AV server. SOLUTION: When at least a first and second commands are successively received as the commands instructing data-writing to and/or data-reading from a plurality of hard disk drives when executing control for writing to or reading from a data-accumulation device which accumulates data by using a plurality of hard disk drives, instructions corresponding to the first command and instructions corresponding to the second command are made to be executed by the plurality of the hard disk drives. When the instructions corresponding to the first command is completed in each of the hard disk drives, the instructions corresponding to the second command is made to be executed with individual timing set for respective hard disk drives. COPYRIGHT: (C)2007,JPO&INPIT