Data distribution through capacity leveling in a striped file system
US8117388B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 30, 2009 |
| Grant date | Feb 14, 2012 |
| Priority date | — |
| Expiry date | Jul 2, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0689
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data distribution technique is configured to provide capacity leveling in a striped file system. When a new node is added to a striped volume set, the striping table is evolved to accommodate the newly added node. Each node of a cluster is illustratively associated with a capacity value that takes into account, e.g., processor speed, number of processors, hardware configuration and/or software available for the node. During the evolution process of the striping table, the technique apportions stripes of the SVS among the nodes in a manner so that they are optimally assigned to the nodes in accordance with each node's capacity value. By utilizing the evolutionary striping table that incorporates capacity values, heterogeneous nodes may be utilized to their maximum capacity within a striped volume set, thereby reducing underutilized processing resources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.