Durability and availability evaluation for distributed storage systems
US9678824B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2015 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Dec 11, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L43/0894
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Embodiments include evaluating durability and availability of a distributed storage system. Aspects include receiving a configuration of the distributed storage system, identifying a failure model for each component of the distributed storage system. Aspects also include generating a series of failure events for each component of the distributed storage system based on the failure model and calculating a recovery time for each failed component based on a network recovery bandwidth, a disk recovery bandwidth, a total capacity of simultaneous failed storage devices and a resiliency scheme used by the in the distributed storage system. Aspects further include collecting data regarding the series of failures and the recovery times, calculating an observed distribution of component failures from the collected data and calculating the availability and durability of the distributed storage system based on the observed distribution of component failures and using probabilistic durability and availability models.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.