Data storage apparatus utilizing sequential map entry for responding to read request and operating method thereof
US10664409B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2018 |
| Grant date | May 26, 2020 |
| Priority date | — |
| Expiry date | Sep 14, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7208
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data storage apparatus includes a nonvolatile memory device including block groups, a random access memory including a sequential map table that stores a sequential map entry for consecutive sequential write logical addresses, among write addresses received from a host apparatus, greater than or equal to a predetermined threshold number, and a processor configured to determine whether or not first sequential write logical addresses are present among logical addresses corresponding to physical addresses for a first region of a first block group when a write operation for the first region of the first block group in response to a write request received from the host apparatus is completed, generate a first sequential map entry for the first sequential write logical addresses when the first sequential write logical addresses are present, and store the first sequential map entry in the sequential map table.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.