Decision mechanisms for adapting RAID operation placement
US7240155B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2004 |
| Grant date | Jul 3, 2007 |
| Priority date | — |
| Expiry date | Dec 28, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/1095
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A client node of a distributed storage system adaptive determines on an operation-by-operation basis whether to process a network-RAID IO operation (IO request) locally at the client node or to forward the IO request to a storage server of the system for processing. The client node determines to process the requested network-RAID operation at the client node when a local estimator for a type of the requested network-RAID operation is less than a central estimator for the type of the requested network-RAID operation. Otherwise, the client node determines to process the requested network-RAID operation at a storage server when the local estimator for the type of the requested network-RAID operation is greater than the central estimator for the type of the requested network-RAID operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.