Data management for data storage device with different track density regions
First Claim
Patent Images
1. A Data Storage Device (DSD), comprising:
- at least one disk for storing data including a first region and a second region;
at least one head for reading and writing data on the at least one disk; and
a controller configured to;
control the at least one head to write data in the first region with a first track density;
determine a frequency of access for the data written in the first region;
compare the frequency of access for the data written in the first region to a threshold; and
based on the comparison, control the at least one head to write a copy of the data written in the first region in the second region with a second track density different than the first track density.
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Abstract
Managing data stored in a Data Storage Device (DSD) including at least one disk for storing data. Data is written in a first region of the at least one disk with a first track density. A frequency of access is determined for the data written in the first region, and the frequency of access is compared to a threshold. Based on the comparison, a copy of the data written in the first region is written in a second region of the at least one disk with a second track density different than the first track density.
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Citations
24 Claims
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1. A Data Storage Device (DSD), comprising:
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at least one disk for storing data including a first region and a second region; at least one head for reading and writing data on the at least one disk; and a controller configured to; control the at least one head to write data in the first region with a first track density; determine a frequency of access for the data written in the first region; compare the frequency of access for the data written in the first region to a threshold; and based on the comparison, control the at least one head to write a copy of the data written in the first region in the second region with a second track density different than the first track density. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for managing data stored in a Data Storage Device (DSD) including at least one disk for storing data, the method comprising:
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writing data in a first region of the at least one disk with a first track density; determining a frequency of access for the data written in the first region; comparing the frequency of access for the data written in the first region to a threshold; and based on the comparison, writing a copy of the data written in the first region in a second region of the at least one disk with a second track density different than the first track density. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A non-transitory computer readable medium storing computer-executable instructions for managing data stored in a Data Storage Device (DSD) including at least one disk for storing data, wherein when the computer-executable instructions are executed by a controller, the computer-executable instructions cause the controller to:
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write data in a first region of the at least one disk with a first track density; determine a frequency of access for the data written in the first region; compare the frequency of access for the data written in the first region to a threshold; and based on the comparison, write a copy of the data written in the first region in a second region of the at least one disk with a second track density different than the first track density.
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24. A host in communication with a Data Storage Device (DSD), the host comprising:
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an interface for communicating with the DSD; and a processor configured to; store data in a first region of at least one disk of the DSD with a first track density; determine a frequency of access for the data stored in the first region; compare the frequency of access for the data stored in the first region to a threshold; and based on the comparison, store a copy of the data written in the first region in a second region of the at least one disk with a second track density different than the first track density.
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Specification