Static load balancing for file systems in a multipath I/O environment
US9495119B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2010 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Jun 19, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/067
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data processing system includes a file server and a storage controller linking the file server to a storage array. There are alternative data paths between the file server and the storage controller for accessing logical units of storage (LUNs) in the storage array. A file system is striped across the LUNs. For load balancing, the file server is programmed with a facility for selecting mappings between the LUNs and the data paths. Upon mounting the file system, the facility is invoked to get a next mapping between the LUNs and the data paths, and this next mapping is used during read and write access to the mounted file system. The facility can also be invoked to get another mapping when another file system is mounted on the LUNs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.