Cluster shared volume replication
US9311332B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2013 |
| Grant date | Apr 12, 2016 |
| Priority date | — |
| Expiry date | Jul 25, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2046
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for replicating input-output (I/O) events of a cluster shared volume (CSV) are presented. Such systems may include a cluster device or node (in a cluster of devices), a coordinator node, and a replica server. Replication techniques disclosed herein may include capturing, using a processor operatively associated with a cluster device, a direct I/O event generated at the cluster device (e.g., by a virtual machine). A legacy file system filter driver of the cluster device may be used and enabled to perform the capturing of the direct I/O event. The legacy file system filter driver may be different than a CSV filter driver associated with the CSV, and may be enabled after the CSV filter driver is enabled. The captured direct I/O event may then be transmitted to the replica server using, e.g., a replication filter, to maintain a backup copy of the event at the replica server.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.