Flash memory module for realizing high reliability
US-2015085577-A1 · Mar 26, 2015 · US
Tracking and utilizing second level map index for recycling of solid state drive blocks
US9606912B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9606912-B2 |
| Application number | US-201314092285-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 27, 2013 |
| Priority date | Oct 31, 2013 |
| Publication date | Mar 28, 2017 |
| Grant date | Mar 28, 2017 |
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Abstract
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A recycling method for a solid state drive is disclosed. The method includes selecting a logical block for recycle wherein the logical block includes a plurality of pages across a plurality of flash dies. The method also includes retrieving an address map index record associated with the logical block selected for recycle. For each particular address map index stored in the address map index record, the recycling method retrieves a set of address map entries referenced by the particular address map index, determines whether any page in the logical block is referenced by the set of address map entries, and if at least one page in the logical block is referenced by the set of address map entries, the method writes the at least one page to a different logical block. The method further includes erasing the plurality of pages in the logical block.
First claim
Opening claim text (preview).
What is claimed is: 1. A recycling method for a solid state drive, the method comprising: selecting a logical block for recycle, the logical block including a plurality of pages across a plurality of flash dies; retrieving an address map index record associated with the logical block selected for recycle; for each particular address map index stored in the address map index record, performing the steps of: retrieving a set of address map entries referenced by the particular a…
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Physics · mapped topic
Physics · mapped topic
- G06F12/0246Primary
Physics · mapped topic
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Frequently asked questions
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- What does patent US9606912B2 cover?
- A recycling method for a solid state drive is disclosed. The method includes selecting a logical block for recycle wherein the logical block includes a plurality of pages across a plurality of flash dies. The method also includes retrieving an address map index record associated with the logical block selected for recycle. For each particular address map index stored in the address map index re…
- Who is the assignee on this patent?
- Lsi Corp, Seagate Technology Llc
- What technology area does this patent fall under?
- Primary CPC classification G06F12/0246. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 28 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).