Multipath driver cognitive coordination
US10425486B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2017 |
| Grant date | Sep 24, 2019 |
| Priority date | — |
| Expiry date | Apr 16, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L41/0659
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An aspect includes detecting a recurring intermittent error in a path of a network in a system that includes at least one data transmission port configured for connection to at least one shared data storage device via a plurality of paths of the network. It is determined by a path control module (PCM) in the network, whether a path recovery action has been initiated by a fiber channel protocol driver in the network. In response to determining that the path recovery action has not been initiated, the data transmission port is prevented from accessing the path for a specified time period by moving the path into a degraded sub-state, and subsequent to the specified time period the data transmission port is provided access to the path. In response to determining that the path recovery action has been initiated, the data transmission port is provided access to the path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.