HAMR drive fault detection system

摘要

A data storage apparatus includes a controller capable of being coupled to a read/write head. The controller is configured to receive a fault signal from a sensor of the read/write head. The sensor indicates whether an energy source used to heat the recording medium is malfunctioning during a write operation. In response to the fault signal, the controller takes remedial action to protect the data associated with the write operation.

主权项

1. An apparatus, comprising:
a controller capable of being coupled to a read/write head; an energy source configured to heat a recording medium during a write operation; and a preamplifier coupled to the controller and the energy source, the preamplifier configured to detect an electrical fault of the energy source and in response thereto provide a fault signal to the controller, wherein the controller is configured to take remedial action comprising protecting data associated with the write operation in response the fault signal.