Patent ID: 9672160
Date: 2017-06-06
CPC Classifications: G06F

Claim:
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 integer for each of the plurality of backend data chunks, wherein the device weight integer is indicative of a type of storage device upon which each of the plurality of backend data chunks is stored within the data array; determining a duration weight integer for each of the plurality of frontend data chunks, wherein the duration weight integer is indicative of the amount of time since each of the plurality of frontend data chunks has been accessed within the cache system; summing the device weight integer and the duration weight integer for each of the plurality of frontend data chunks respectively; assigning a deletion score to each of the plurality of frontend data chunks, wherein each deletion score is based, at least in part, upon summing the device weight integer determined for its corresponding backend data chunk and the duration weight integer for each of the plurality of frontend data chunks respectively; and deleting one or more of the plurality of frontend data chunks based, at least in part, upon an assigned deletion score for the one or more of the plurality of frontend data chunks.