Patent ID: 8806117

Claim:
An apparatus comprising: a storage module configured to store a risk value for a tracked storage division, the risk value indicating a risk level of data loss for the tracked storage division, the tracked storage division comprised in a plurality of storage divisions of a data storage device, the storage module further configured to periodically save the risk value to static memory; a tracking module configured to update the risk value to indicate a higher risk level based on a write to a physically proximal storage division, the physically proximal storage division within an interference range of the tracked storage division, the tracking module further configured to reset the risk value based on a write to the tracked storage division; and a refresh module configured to refresh the tracked storage division based on the risk value meeting a threshold value, the refresh module further configured to forgo refreshing the tracked storage division based on one of a current location of a read write head of the data storage device, the storage device writing to a division that logically precedes the tracked storage division, and the tracked storage division being listed in a write queue.