Patent ID: 8539165
Filing Date: 2013-09-17
Classification: G06F

Abstract:
1. A storage system, comprising: a first storage tier; a second storage tier; logic for storing instances of a file in the first storage tier and the second storage tier; logic for determining an ownership status for each instance of the file in the storage system, wherein the ownership status includes owned and unowned; logic for determining a location of each instance of the file in the storage system; logic for determining whether each instance of the file in the first storage tier is being accessed or not being accessed; logic for assigning each instance of the file to one of a plurality of indices using the determined ownership status, location, and whether the instance is being accessed; logic for receiving a request to access the file or instance thereof from a user; logic for selecting an instance of the file based on an assignment of the instance of the file to one of the indices; and logic for providing the user with access to the selected instance of the file or copy thereof.