Method and system for reading data during control sync operations
US10732896B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2018 |
| Grant date | Aug 4, 2020 |
| Priority date | — |
| Expiry date | Sep 29, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7201
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for optimizing read operations during a control sync operation on a data storage device are disclosed. The data storage device contains a management table used for mapping memory addresses to a non-volatile memory. A control sync operation makes a copy of the management table to the non-volatile memory. The control sync operation is non-blocking—the sync operation allows read and write operations in parallel with making a copy of or updating the management table. During the control sync operation, the read operations are optimized through a CUQ and an overlap range table. The CUQ may act as a temporary management table while also containing updates to be consolidated to the management table. The overlap range table is used to allow skipping searches within the CUQ by identifying then mapping entries that reside within CUQ.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.