Read head stress reduction
AssigneeSeagate Technology LLC
InventorPeter S. Harllee
Life of this patent
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Abstract
Systems and methods are disclosed for dynamically adjusting parameters used during a read operation to reduce stress on a read head. In certain embodiments, an apparatus may comprise a read head configured to read data stored to a data storage medium, and a control circuit that controls a parameter of the read head influencing the read head's ability to accurately read data. The control circuit may be configured to extend the working lifespan of the read head by monitoring a read performance of the read head, and adjusting the parameter to reduce the read performance when the read performance is greater than a first threshold.
Claims20
An apparatus comprising:
- a read head configured to read data stored to a data storage medium;
- a control circuit configured to control a parameter to extend a working lifespan of the read head, the parameter influencing the read head's ability to accurately read data, including:
- receive a read command to perform a read operation on the data storage medium;
- evaluate a metric available prior to performing the read operation;
- determine, based on the metric, whether to reduce a read performance of the read head during the read operation from a baseline performance setting;
- and
- adjust the parameter to reduce the read performance based on the determination.
A method comprising:
- dynamically adjusting a parameter to extend the working lifespan of a read head, the parameter influencing the read head's ability to accurately read data, including:
- receiving a read command to perform a read operation on a data storage medium;
- evaluating a metric available prior to performing the read operation;
- and
- determining, based on the metric having a first value, to adjust the parameter to reduce a read performance of the read head during the read operation from a baseline performance setting, where the reduced read performance reduces the read head's ability to accurately read data;
- determining not to adjust the parameter and maintain the baseline performance setting based on the metric having a second value;
- and
- performing a read operation using the determined parameter setting.
A memory device storing instructions that, when executed, cause a processor to perform a method comprising:
- dynamically adjusting a parameter to extend the working lifespan of a magnetic read head, the parameter influencing the magnetic read head's ability to accurately read data, including:
- receiving a read command to perform a read operation on a data storage medium;
- evaluating a metric available prior to performing the read operation;
- determining, based on the metric, whether to reduce a read performance of the magnetic read head during the read operation from a baseline performance setting;
- and
- adjusting the parameter to reduce the read performance based on the determination.
Dependencies are inferred from the claim text.