Patent ID: 9201803
Filing Date: 2015-12-01
Classification: G06F

Abstract:
1. A computer-implemented method comprising: storing a plurality of frontend data chunks within a cache system, wherein the plurality of frontend data chunks correspond to a plurality of backend data chunks stored within a data array; determining a device weight for each of the plurality of backend data chunks, wherein the device weight is indicative of the type of storage device upon which each of the plurality of backend data chunks is stored within the data array; assigning a deletion score to each of the plurality of frontend data chunks, wherein each deletion score is based, at least in part, upon the device weight determined for its corresponding backend data chunk and a current load associated with an associated storage device; and determining a duration weight for each of the plurality of frontend data chunks, wherein the duration weight is indicative of the amount of time since each of the plurality of frontend data chunks has been accessed within the cache system, wherein each deletion score is further based, at least in part, upon the duration weight determined for each of the plurality of frontend data chunks.