Methods for distributing log block associativity for real-time system and flash memory devices performing the same
US8261010B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2009 |
| Grant date | Sep 4, 2012 |
| Priority date | — |
| Expiry date | Feb 22, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7203
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for distributing log block associativity in log buffer-based flash translation layer (FTL) includes, if write request on page p is generated, checking whether log block associated with corresponding data block that write request is generated exists or not by checking log block mapping table storing mapping information between data blocks and log blocks, wherein the associativity of each log block to data block is set to equal to or less than predetermined value K in advance, and K is a natural number, if log block associated with corresponding data block that write request is generated exists, checking whether associated log block is random log block or sequential log block, and if associated log block is random log block, writing data that write request is generated in first free page of random log block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.