Patent ID: 9298394
Filing Date: 2016-03-29
CPC Classification: G06F

Claim Text:
1. A data arrangement method of arranging data on a logical storage volume by a computer coupled to a storage system providing a plurality of logical storage devices constituted of a plurality of physical storage devices, the logical storage volume being constituted by unifying the plurality of logical storage devices, the method comprising: receiving, by the computer, an instruction to build the logical storage volume using the plurality of logical storage devices, or an instruction to rebuild a logical storage volume already built; acquiring, by the computer, information on the plurality of physical storage devices constituting the respective plurality of logical storage devices contained in the received instruction, wherein acquired information contains at least one of: determining, by the computer, arrangement positions of the data on the logical storage volume based on the acquired information on the plurality of physical storage devices, by: arranging the data on the plurality of logical storage devices which constitute the logical storage volume, based on the data arrangement management information according to the determined ratio.