Performing fencing operations in multi-node distributed storage systems
US9146790B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2012 |
| Grant date | Sep 29, 2015 |
| Priority date | — |
| Expiry date | Jun 27, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/56
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Various systems and methods for managing node connectivity in distributed storage systems are disclosed. For example, one method involves detecting a communication fault between two nodes. A first node is configured to communicate input/output (I/O) requests to the second node as in-flight I/O requests. The second node is configured to communicate locally generated I/O requests and the received I/O requests to storage devices. Once the communication fault is detected, a fencing operation is performed. The fencing operation can include processing some of the received I/O requests by the second node, and rejecting any additional in-flight I/O requests received from the first node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.