Patent ID: 8706962
Filing Date: 2014-04-22
Classification: G06F

Abstract:
1. A method of configuring a multi-tiered storage system, the storage system comprises a plurality of storage tiers and each of the storage tiers includes storage devices of a particular type of storage, the method comprising: receiving, by the storage system, data access information for storage extents to be stored in the storage system; receiving, by the storage system, resource information for available storage tiers in the storage system to place the storage extents on; determining, by the storage system, a cost incurred by the storage system for placing each of the storage extents on each of the storage tiers, the cost being based on a consumption of storage resources for storing a storage extent in a storage tier and calculated from the data access and resource information; assigning, by the storage system, each storage extent to a particular one of the storage tiers, said one of the storage tiers would incur the lowest cost to the storage system for storing the storage extent; and for each storage tier, the storage system selecting a minimum number of storage devices within the assigned storage tier that would satisfy data access and capacity requirements for all storage extents assigned to that tier.