File access method and apparatus, and storage system
US10061711B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2017 |
| Grant date | Aug 28, 2018 |
| Priority date | — |
| Expiry date | Feb 28, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/657
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A file access method and apparatus, and a storage system are provided. After receiving a file access request from a process, a first physical address space is accessed according to a preset first virtual address space and a preset first mapping relationship between the first virtual address space and the first physical address space, where the first physical address space stores a file system. After obtaining an index node of a target file from the first physical address space according to a file identifier of the target file carried in the file access request, a file page table of the target file is obtained according to file page table information. The file page table records a second physical address space in the first physical address space. The target file is accessed according to the second physical address space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.