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Health management for magnetic storage media

A storage medium and magnetic storage technology, used in information storage, recording information storage, and functional testing of magnetic heads, etc., can solve problems such as HDD failure, data loss, and reduced data storage service uptime.

Pending Publication Date: 2020-08-07
MARVELL ASIA PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Without knowing how much wear and tear has occurred over time, HDDs can fail unexpectedly before replacement or data backup, resulting in loss of data or reduced uptime of data storage services

Method used

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  • Health management for magnetic storage media
  • Health management for magnetic storage media
  • Health management for magnetic storage media

Examples

Experimental program
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Embodiment Construction

[0022] Conventional techniques for tracking hard disk drive (HDD) wear or life expectancy typically only provide a high-level view of actual drive usage, such as operating hours or the number of relocated sectors in the drive. As mentioned earlier, HDDs are complex systems of interconnected mechanical, electrical, and magnetic components that work together to facilitate the storage and access of data. With each HDD generation released, this complexity and drive component tolerances become more important as the drive's write density and storage capacity increase. Outside of a catastrophic event such as a drop, these mechanical, electrical, and magnetic components of the HDD gradually wear out during the operational life of the HDD until critical component failure occurs and the HDD is scrapped. The loss of an HDD can be very expensive in terms of data loss, data recovery costs, service downtime (e.g., cloud resources), drive replacement costs, and more. With the high-level vie...

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PUM

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Abstract

The present disclosure describes aspects of health management for magnetic storage media. In some aspects, a media health manager determines, with a read channel, read metrics for a sector of magneticstorage media that resides in a zone of magnetic storage media. The media health manager accesses read metrics of the zone and updates the read metrics of the zone based on the read metrics determined for the sector to provide updated read metrics for the zone of magnetic storage media. A health score for the zone of magnetic storage media is then determined with a neural network based on the updated read metrics of the zone of magnetic storage media. By so doing, gradual wear of the magnetic storage media may be predicted using the health score, enabling replacement of a magnetic storage media device before failure to improve reliability or availability of data stored to the device.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Provisional Patent Application No. 62 / 799,608, filed January 31, 2019, and U.S. Patent Application No. 16 / 737,174, filed January 8, 2020, both U.S. applications The disclosure of is incorporated herein by reference in its entirety. Background technique [0003] Electronic devices provide many services to modern society. These services enable electronic devices to provide entertainment, aid scientific research and development, and provide many modern conveniences. Many of these services create or use data stored on electronic devices. This data can include digital media such as books or movies, algorithms performing complex simulations, personal user data, applications, etc. To avoid exceeding data storage limits, it is beneficial to increase the data storage capacity of an electronic device and avoid deleting data, limiting service, or purchasing additional external storage de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B5/455G11B5/66G06F11/22G06F11/10
CPCG11B5/66G11B5/455G06F11/1044G06F11/2263G11B27/36G11B5/012G06F3/0676G11B20/10472G11B2020/1869G06F3/0619G06F3/0653G11B20/18G06F3/0616G06N3/02G06N3/08G11B20/10518
Inventor N·南加勒
Owner MARVELL ASIA PTE LTD
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