Data loss mitigation in a heat assisted magnetic recording data storage device

摘要

A data storage device may employ a heat assisted magnetic recording data writer separated from a plurality of data bits stored on a media surface of a data storage medium. At least one controller and a prediction circuit that is connected to the heat assisted magnetic recording data writer can be configured to remap the media surface in response to a predicted heat assisted magnetic recording data writer failure.

主权项

1. A method comprising:
predicting a failure in a data writer with a controller connected to the data writer, the data writer separated from a plurality of data bits stored on a media surface of a data storage medium; remapping data stored to the media surface based on a predicted failure time window of a failure mitigation strategy generated by the controller in response to the predicted data writer failure; and storing data identified as cold by the controller to the media surface.