Coherent film system access during defragmentation operations on a storage medium
US5761680A · kind A · utility
54Cited by
17References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 1997 |
| Grant date | Jun 2, 1998 |
| Priority date | — |
| Expiry date | Aug 28, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99957
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A file defragmentation utility for a computer system is disclosed that enables multithreaded preemptive multi-tasking during file defragmentation. The utility includes a defragmentor routine that defragments clusters or portions of a file on a storage media and then updates one or more file system structures to indicate the new locations of the defragmented clusters of the file. An alias driver is provided that traps accesses to the file and that maintains coherent access to the file while the file system structures are updated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.