Method and Apparatus for Determining a Location of a Defect on a Storage Medium
First Claim
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1. A method, comprising:
- detecting a defect on a storage medium of a disk drive;
determining, within a smallest addressable unit of data stored on the storage medium, a location of the defect;
storing an indication of the location in a memory;
monitoring a location of a sensor of the disk drive relative to the data stored on the storage medium; and
changing a response of at least one of a defect detector of the disk drive, a read channel controller of the disk drive, and a servo controller of the disk drive based on the location of the sensor relative to the data stored on the storage medium and the stored indication of the location of the defect.
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Abstract
A defect is detected on a storage medium of a disk drive. A location of the defect is determined, within a smallest addressable unit of data stored on the storage medium. An indication of the location is stored in a memory. A location of a sensor of the disk drive relative to the data stored on the storage medium is monitored. A response of at least one of a defect detector of the disk drive, a read channel controller of the disk drive, and a servo controller of the disk drive is changed based on the location of the sensor relative to the data stored on the storage medium and the stored indication of the location of the defect.
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Citations
20 Claims
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1. A method, comprising:
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detecting a defect on a storage medium of a disk drive; determining, within a smallest addressable unit of data stored on the storage medium, a location of the defect; storing an indication of the location in a memory; monitoring a location of a sensor of the disk drive relative to the data stored on the storage medium; and changing a response of at least one of a defect detector of the disk drive, a read channel controller of the disk drive, and a servo controller of the disk drive based on the location of the sensor relative to the data stored on the storage medium and the stored indication of the location of the defect. - View Dependent Claims (2, 3, 4, 5)
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6. An apparatus, comprising:
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a counter configured to generate counts associated with different locations on a storage medium of a disk drive; a defect detector configured to detect defects on the storage medium; and a defect boundary controller configured to; determine a count of the counter corresponding to a location of a defect; and change a response of at least one of the defect detector, a read channel controller of the disk drive, and a servo controller of the disk drive based on the count and the counter. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A method, comprising:
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running a counter, wherein counts of the counter are associated with different locations on a storage medium of a disk drive; detecting a defect on the storage medium using a defect detector; determining a count of the counter corresponding to a location of the defect; and changing a response of at least one of the defect detector, a read channel controller of the disk drive, and a servo controller of the disk drive based on the count and the counter. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification