Patent ID: 8171216
Filing Date: 2012-05-01
Classification: G06F

Abstract:
1. A method of managing stored data, the method comprising: associating a bin access value with each data storage bin of a plurality of data storage hardware bins after a current time window ends, wherein the bin access value corresponds to a time-weighted access frequency related to the data storage bin; mapping each data storage bin of the plurality of data storage bins to a storage tier of a hierarchy of storage tiers, based on the bin access value associated with the data storage bin, such that a bin access value associated with each data storage bin mapped to a storage tier is greater than or equal to a bin access value associated with a most frequently accessed data storage bin mapped to a next highest-performing storage tier; causing data associated with each data storage bin of the plurality of data storage bins to be migrated to the storage tier to which the data storage bin is mapped; and when a data storage bin was not mapped to a current storage tier after a previous time window ended, automatically determining a time weighting factor to be applied to an access frequency associated with a time window, wherein a next bin access value associated with the data storage bin is calculated using the determined time weighting factor.