| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent deterioration of performance of a plurality of sequential writes relative to a single logical disk. <P>SOLUTION: A configuration controlling section 260 divides a storage area of each of the RAID arrays 120-0 to 120-5 into physical slices of a fixed size to manage them, and allocates some groups of the physical slices to groups of logical slices of a logical disk. When a plurality of sequential writes are executed on the logical disk, an allocation requesting section 242, for each of the plurality of sequential writes, requests the configuration controlling section 260 to reallocate, to a logical slice in the logical disk which is the destination of a sequential write, a physical slice in a different disk array among the RAID arrays 120-0 to 120-5. <P>COPYRIGHT: (C)2012,JPO&INPIT |
