Patent ID: 8799600
Filing Date: 2014-08-05
Classification: G06F

Abstract:
1. A computer system comprising: a storage system including a plurality of physical storage drives and a controller providing a plurality of volumes, where the controller uses a plurality of storage regions provided by the plurality of physical storage drives as a plurality of logical storage regions of the plurality of volumes; and a management computer configured to: (A) receive information for specifying a source volume among the plurality of volumes; (B) receive a migration condition; (C) after step (B), if a candidate volume satisfying the migration condition among the plurality of volumes excluding the source volume exists, extract the candidate volume; (D) if at least one candidate volume is extracted according to step (C), instruct the storage system to execute a data migration from the source volume to the candidate volume; and (E) if no candidate volume is extracted according to step (C): wherein the migration condition includes a disk type or a RAID level.