System and method for supporting atomic writes in a flash translation layer
US10101930B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2016 |
| Grant date | Oct 16, 2018 |
| Priority date | — |
| Expiry date | Sep 30, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7201
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for memory-efficient backup of a logical-to-physical (LtoP) table in a storage device having a processor, a volatile memory, and a non-volatile memory, includes retrieving and subsequently processing, by the processor, a plurality of flushed zone segments stored in a first block stripe of the non-volatile memory in an order opposite to an order of storage of the plurality of flushed zone segments in the first block stripe in the non-volatile memory, wherein the processing of the plurality of flushed zone segments includes identifying a retrieved flushed zone segment of the plurality of flushed zone segments differing from all previously retrieved plurality of flushed zone segments, and writing the identified retrieved flushed zone segment of the plurality of flushed zone segments to a second block stripe of the non-volatile memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.