Methods and apparatus for updating information in a computer system using logs and state identifiers
US5485608A · kind A · utility
106Cited by
12References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 14, 1994 |
| Grant date | Jan 16, 1996 |
| Priority date | — |
| Expiry date | Apr 14, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99953
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data processing system maintains logs for system and media recovery. The logs contain state identifiers each uniquely identifying the state of a corresponding section of a storage medium, such as a disk. The state identifiers are assigned after changes have been made such that they can be determined from the information in the logs. One implementation involves assigning state identifiers in a known sequence, such as in a monotonically increasing sequence of integers beginning with zero.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.