Hamr drive fault detection system
AssigneeSeagate Technology LLC
InventorsPaul William Burnett, Jon Trantham
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Abstract
An apparatus of the present disclosure includes a controller coupled to a read/write head wherein the controller is configured to perform various operations. More specifically, the controller is configured to monitor an operational parameter of the read/write head and to detect a fault based on the operational parameter. The fault indicates that a write enabling energy source is malfunctioning during a write operation. The controller is additionally configured, in response to the fault, to take remedial action to protect data associated with the write operation.
Claims21
A data storage apparatus, comprising:
- a controller coupled to a HAMR read/write head, the controller configured to:
- monitor an operational parameter of the HAMR read/write head;
- detect a fault based on the operational parameter of the HAMR read/write head, wherein the fault indicates that a write enabling energy source configured to heat a recording medium is malfunctioning during a write operation;
- and
- responsive to the fault, take remedial action to protect data associated with the write operation.
A data storage system, comprising:
- an energy source configured to heat a recording medium;
- a read/write head configured to detect whether the energy source is heating the recording medium during a write operation;
- and
- a controller coupled to the read/write head and configured to:
- monitor an operational parameter of the read/write head;
- detect a fault based on the operational parameter of the read/write head, wherein the fault indicates that the energy source used to heat the recording medium is malfunctioning during the write operation;
- and
- responsive to the fault, take remedial action to protect data associated with the write operation.
A method, comprising:
- initiating a heat-assisted magnetic (HAMR) write operation of data;
- detecting whether sufficient heat has been provided to enable the HAMR write operation;
- indicating a fault if sufficient heat has not been provided to enable the HAMR write operation;
- and
- responding to the fault by protecting the data associated with the write operation.
An apparatus, comprising:
- a controller coupled to a heat-assisted magnetic recording (HAMR) head, the controller configured to:
- monitor an operational parameter of an energy source of the HAMR head configured to heat a recording medium during a write operation;
- determine if the operational parameter is indicative of a fault of the energy source;
- and
- initiate a remedial action comprising protecting data associated with the write operation if the operational parameter is indicative of & the fault.
Dependencies are inferred from the claim text.