Patent ID: 9047087
Filing Date: 2015-06-02
Classification: G06F,Y02D

Abstract:
1. A method of reducing power consumption of a storage system, the storage system having physical storage units and logical storage units mapped to one or more of the physical storage units, said method comprising the steps of: identifying a first logical storage unit; retrieving correlation data between the first and a plurality of other logical storage units, wherein the correlation data provides an indication of the extent to which the physical storage units are shared by the first and each of the other logical storage units; selecting one of the other logical storage units as a second logical storage unit based on the correlation data, the first logical storage unit sharing the least amount of physical storage units with the second logical storage unit than with any of the other logical storage units; migrating one or more files from the first logical storage unit to the second logical storage unit; and powering down at least one of physical storage units to which the first logical storage unit is mapped.