Intelligent load balancing for a multi-path storage system
US6802021B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2001 |
| Grant date | Oct 5, 2004 |
| Priority date | — |
| Expiry date | Oct 22, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/0751
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An invention is disclosed for intelligent load balancing in a mult-path computer system. Initially, an input/output (I/O) request to access the computer I/O device is intercepted. Then, to properly balance data path traffic, the number of I/O requests that have been sent along each data path of a plurality of data paths providing access to the computer I/O device is detected, and a failure probability is calculated for each data path paths based on the number of I/O requests that have been sent along each data path. A data path is then selected that has a failure probability lower than the failure probability of other data paths of the plurality of data paths and the computer I/O device is accessed using the selected data path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.