Overwrite parameter determination for optical drive
AssigneeMarvell International Ltd.
InventorsPeter J. Kivits, Ben Idris P. Pascual, Julie Faminial, Jr.
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Abstract
Embodiments of the present disclosure provide a method, comprising iteratively writing a plurality of test portions to a storage medium sing a corresponding plurality of test parameter sets; iteratively erasing the plurality of test portions from the storage medium using corresponding erase power levels included within the corresponding plurality of test parameter sets and determining an overwrite parameter set for writing user data to the storage medium, the determining based on write performance characteristics of the plurality of test portions after the plurality of test portions have been iteratively erased and rewritten for a predetermined number of iterations.
Claims21
A method, comprising:
- iteratively writing a plurality of test portions to a storage medium using a corresponding plurality of test parameter sets;
- iteratively erasing the plurality of test portions from the storage medium using corresponding erase power levels included within the corresponding plurality of test parameter sets;
- and
- determining an overwrite parameter set for writing user data to the storage medium, the determining based on write performance characteristics of the plurality of test portions after the plurality of test portions have been iteratively erased and rewritten for a predetermined number of iterations.
An apparatus, comprising:
- one or more processors configured to implement logic modules, the logic modules including:
- a test portion overwrite module configured to iteratively write and erase test data to a plurality of portions of a storage medium based on a plurality of corresponding test parameter sets, wherein the plurality of corresponding test parameter sets include corresponding write power levels and corresponding erase power levels;
- and
- an overwrite parameter set selection module configured to determine, based on overwrite performance characteristics of the plurality of portions, an overwrite parameter set including a write power and an erase power for use in writing and erasing user data to the storage medium, wherein the overwrite parameter set is determined after the plurality of portions have been overwritten a certain number of times.
An optical drive, comprising:
- a laser;
- and
- firmware configured to cause the laser to alternatingly write and erase test data to a plurality of test portions of an optical disc a predetermined number of times utilizing a plurality of corresponding test parameter sets, and determine an overwrite parameter set for use in writing and erasing user data to the optical disc based on overwrite performance characteristics of the plurality of test portions.
Dependencies are inferred from the claim text.