17836861. VERIFY FIRST WRITE TO EACH STORAGE AREA OF HARD DISK DRIVE simplified abstract (Western Digital Technologies, Inc.)

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VERIFY FIRST WRITE TO EACH STORAGE AREA OF HARD DISK DRIVE

Organization Name

Western Digital Technologies, Inc.

Inventor(s)

Jim French of Grand Junction CO (US)

VERIFY FIRST WRITE TO EACH STORAGE AREA OF HARD DISK DRIVE - A simplified explanation of the abstract

This abstract first appeared for US patent application 17836861 titled 'VERIFY FIRST WRITE TO EACH STORAGE AREA OF HARD DISK DRIVE

Simplified Explanation

The abstract describes a method for identifying defects in a data storage device, such as a hard disk drive, without the need for disk surface scanning during manufacturing. Here are the key points:

  • When a user writes data to a specific storage area on the disk, the data is written and then read back to verify its integrity.
  • If the verification is successful, subsequent write requests to the same storage area can be fulfilled without re-reading and verifying the data.
  • If the verification fails, the storage area is marked as defective and the data is written to a different area on the disk.
  • This process is repeated for each storage area on each disk, eliminating the need for disk surface scanning during manufacturing.

Potential applications of this technology:

  • Data storage devices, such as hard disk drives, can benefit from this method to identify and avoid using defective storage areas.
  • Manufacturers of data storage devices can save time and resources by eliminating the need for disk surface scanning during the manufacturing process.

Problems solved by this technology:

  • Traditional methods of identifying disk defects require time-consuming and costly disk surface scanning during manufacturing.
  • This method eliminates the need for disk surface scanning, making the manufacturing process more efficient and cost-effective.

Benefits of this technology:

  • Saves time and resources by eliminating the need for disk surface scanning during manufacturing.
  • Improves the efficiency of the manufacturing process for data storage devices.
  • Ensures the integrity of user data by verifying it after each write operation.


Original Abstract Submitted

Identifying recording disk defects in a data storage device such as a hard disk drive (HDD), for which disk defects are not previously identified, includes responsive to a first user data write request to a particular storage area of a disk medium, writing the user data to the particular storage area, reading the written user data from the particular storage area, and verifying the integrity of the user data read from the particular storage area. Upon passing, a second user data write request to the same particular storage area can be fulfilled without again reading and verifying. Upon failing, the particular storage area is marked as defective and the user data is written to a different storage area. This procedure can be repeated in response to each initial user write request to each storage area of each disk medium, foregoing the need for disk surface scanning during manufacturing.

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