| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique for selecting the optimum storage device among the plurality of storage devices as the copy or movement source of data. SOLUTION: A controller for connecting the different kinds of storage devices includes: a performance information storage part for storing performance information of each storage device; a list storage part for storing the list of data in each storage device; a monitor part for monitoring the load states of each storage device and the controller; a detecting part; an estimating part; and a determining part. When data is copied, etc., with respect to a certain storage device, the detecting part detects the storage devices for storing the data to be copied, based on the list. The estimating part estimates copying time with respect to the detected each storage device, based on performance information and load information. The determining part determines the storage device to be the copy source, based on the estimation result. COPYRIGHT: (C)2009,JPO&INPIT |
