Controlling wear among flash memory devices based on remaining warranty

Abstract

A computer readable storage medium embodies program instructions executable by a processor to perform a method including identifying a product warranty for each of a plurality of flash memory devices within a system, wherein the product warranty includes a maximum number of writes and a maximum age, and tracking the number of writes and the age of each flash memory device. The method further includes determining, for each flash memory device, a number of pro rata writes remaining in the product warranty, which is determined as a number of writes remaining until the flash memory device reaches the maximum number of writes divided by an amount of time remaining until the flash memory reaches the maximum age. The method then causes data to be written to the flash memory device having the greatest number of pro rata writes remaining in the product warranty.