Verification of file system log data using per-entry checksums
US7451167B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2003 |
| Grant date | Nov 11, 2008 |
| Priority date | — |
| Expiry date | Feb 8, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99953
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage server provides a set of client devices with access to a set of mass storage devices. The storage server receives requests from the client devices, each request representing a storage operation to be performed by the storage server on the set of mass storage devices. The storage server maintains a log of write requests received from the client devices, the log including a separate log entry for each of the write requests, and a separate checksum in each of the log entries. Each checksum is for use by a checksum algorithm in determining data integrity of the corresponding log entry. The checksum algorithm is selected, from among a number of selectable a checksum algorithms, based on one or more predetermined criteria, such as a desired balance between performance and checksum strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.