Patent ID: 7555575
Filing Date: 2009-06-30
Classification: G06F,H04L

Abstract:
1. A computerized data storage system comprising: a first storage device comprising a first storage volume storing data; a host computer operatively coupled to a first storage system via a network and accesses the data in accordance with a data access pattern; and a second storage device coupled to the first storage device and comprising a storage controller, a first media pool and a second media pool, wherein characteristics of the first media pool are different from characteristics of the second media pool; wherein the second storage device determines the data access pattern and allocates a second storage volume comprising at least a portion of the first media pool and at least a portion of the second media pool in accordance with the determined data access pattern; and wherein upon execution of a data migration operation, the allocated second storage volume stores a copy of the data; and, wherein the first and second storage volumes comprise chunks with each chunk linked to a respective media pool.