Minimizing data written to disk and enabling directory change notifications in multi-volume filter environments
US11204877B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2019 |
| Grant date | Dec 21, 2021 |
| Priority date | — |
| Expiry date | Sep 14, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/1016
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The amount of data that is written to disk is minimized when an overlay optimizer is used in conjunction with a write filter to prevent the overlay from becoming full. An overlay optimizer minifilter can be used to intercept writes that were initiated by the overlay optimizer's request to commit files cached in the write filter's overlay to thereby extract only the modified portions of the files that are actually stored in the overlay. The overlay optimizer minifilter can then write these modified portions of the files, as opposed to the entire files, in the overlay cache. Directory change notifications are also enabled when a write filter is employed as well as in other multi-volume filter environments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.