Patent ID: 9367249
Filing Date: 2016-06-14
CPC Classification: G06F

Claim Text:
1. A computer program product for migrating data from a source storage to a target storage comprising at least one of a plurality of storage devices, the computer program product comprising a non-transitory computer readable storage medium having computer readable program code embodied therein that executes to perform operations, the operations comprising: determining for each of the storage devices, parameter values for attributes of the storage device; determining, for each of the storage devices, a storage device weight value as a function of the parameter values of the storage device; storing storage device information including storage device weight values determined for the storage devices; receiving a request to migrate data from a source storage comprising one of the storage devices in a source storage tier to a specified target storage tier in a multi-tier storage system; using the storage device information, after the storage device weight values are determined, to determine the storage device weight values of the storage devices in the specified target storage tier; and using the storage device weight values, determined from the storage device information, of the storage devices in the specified target storage tier to select one of the storage devices in the specified target storage tier as the target storage to which data from the source storage is migrated.