Varying data redundancy in storage systems
US-8977804-B1 · Mar 10, 2015 · US
Varying data redundancy in storage systems
US9268657B1 · US · B1
| Field | Value |
|---|---|
| Publication number | US-9268657-B1 |
| Application number | US-201514625026-A |
| Country | US |
| Kind code | B1 |
| Filing date | Feb 18, 2015 |
| Priority date | Nov 21, 2011 |
| Publication date | Feb 23, 2016 |
| Grant date | Feb 23, 2016 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A disk drive is disclosed that varies its data redundancy policy for caching data in non-volatile solid-state memory as the memory degrades. As the non-volatile memory degrades, the redundancy of data stored in the non-volatile memory can be increased to counteract the effects of such degradation. Redundant data can be used to recover data stored in the non-volatile memory in case of a data corruption. Performance improvements and reduced costs of disk drives can thereby be attained.
First claim
Opening claim text (preview).
What is claimed is: 1. A data storage system comprising: a non-volatile solid-state memory configured to store data; and a controller configured to store data in the non-volatile memory, the controller further configured to: determine a reliability measurement of the non-volatile memory; in response to comparing the reliability measurement to at least one reliability threshold, determine a parity level or a mirroring level of the non-volatile memory and set a redundancy leve…
Assignees
Inventors
Classifications
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
- G06F11/2058Primary
Physics · mapped topic
Physics · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9268657B1 cover?
- A disk drive is disclosed that varies its data redundancy policy for caching data in non-volatile solid-state memory as the memory degrades. As the non-volatile memory degrades, the redundancy of data stored in the non-volatile memory can be increased to counteract the effects of such degradation. Redundant data can be used to recover data stored in the non-volatile memory in case of a data cor…
- Who is the assignee on this patent?
- Western Digital Tech Inc
- What technology area does this patent fall under?
- Primary CPC classification G06F11/2058. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Feb 23 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).