Magnetic disk drive
The magnetic disk drive improves recording density and write performance by implementing a hybrid recording type with advanced data management and error correction techniques, addressing data corruption issues in hybrid recording systems.
JP2026053050APending Publication Date: 2026-03-25KK TOSHIBA +1
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Patent Information
- Application Number
- JP2024158385
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2026-03-25
AI Technical Summary
Technical Problem
Existing magnetic disk drives face challenges in improving recording density while maintaining write performance, particularly in hybrid recording types where data corruption can lead to decreased efficiency.
Method used
A magnetic disk drive with a hybrid recording type that includes a first and second data track, utilizing a write head, read head, error correction unit, buffer memory, and management units to manage data writing and correction, allowing selective overwriting and data saving to non-volatile media based on error correction limits.
Benefits of technology
Enhances recording density and maintains write performance by effectively managing data correction and overwriting, reducing data loss and improving overall disk drive efficiency.
✦ Generated by Eureka AI based on patent content.
Abstract
To provide a magnetic disk device capable of improving the recording density of data on a disk and suppressing the deterioration of write performance.SOLUTION: In the first write period, when it is determined that the error correction of the first user data on the first data track does not exceed the limit, the determination unit 67 causes the write processing unit 62 to continue the write processing and causes the management unit 65 to execute the second management. When it is determined that the error correction has exceeded the limit, the determination unit 67 causes the write processing unit 62 to continue the write processing and causes the management unit 65 to execute the third management. In the middle of the first write period or after the first write period, the determination unit 67 causes the management unit 65 to execute a process of evacuating the data belonging to the third group to the nonvolatile recording medium.SELECTED DRAWING: Figure 1
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