Patent ID: 8572318
Filing Date: 2013-10-29
Classification: G06F

Abstract:
1. A method for distributing a storage device among multiple storage devices to any of multiple tiers in a storage apparatus, the method comprising the steps performed by one or more computers of: (a) distributing the storage device among the multiple storage devices of the storage apparatus to a tier among the multiple tiers based on a storage device type of the storage device and type/tier information that denotes a corresponding relationship between multiple storage device types and the multiple tiers; (b) acquiring, subsequent to the (a) step, performance information denoting a performance of the storage device; (c) when the performance information of the storage device is acquired, distributing the storage device to a tier among the multiple tiers based on the performance information of the storage device; and (d) when the performance information of the storage device is not acquired, determining a presence or absence of a representative tier corresponding to the storage device type of the storage device, wherein the (d) step further comprises: