Methods and apparatus for node caching at the file level
US5628014A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 1995 |
| Grant date | May 6, 1997 |
| Priority date | — |
| Expiry date | Feb 3, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0866
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus for caching files in DOS based computer systems are disclosed wherein the computer systems include a nonstandard drive in which files have been stored and from which files can be accessed, retrieved or written to, a computer CPU for generating instructions for accessing, retrieving or writing portions of desired files, wherein said instructions for accessing, retrieving or writing are generated through the use of DOS interrupt 21 and a drive, recognized by the computer CPU as a DOS drive, for storage and access, retrieval or writing of files, wherein the access, retrieval or writing of files from the drive can be achieved faster than access, retrieval or writing of files from the non-standard drive. A file handler monitors CPU generated instructions directed through DOS interrupt 21 and in response to instructions for accessing, retrieving or writing portions of the files, the file handler retrieves information contained in files from the non-standard drive and caches the information in the drive. The disclosed computer system can also include a plurality of non-standard and standard drives to which the file handler is attached. In such an embodiment, the file…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.