Method for controlling host throughput to a computer storage subsystem
US7853681B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2008 |
| Grant date | Dec 14, 2010 |
| Priority date | — |
| Expiry date | Jan 20, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0686
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for controlling the throughput in a communications channel between a host and its storage subsystem is disclosed. A determination is made whether or not a total throughput value is greater than a predetermined maximum throughput value. If the total throughput value is greater than the predetermined maximum throughput value, a delay is applied to the communications channel. If the total throughput value is not greater than the predetermined maximum throughput value, another determination is made whether or not one time period has completed. If one time period has completed, a total throughput value and an exponential moving average (EMA) throughput value of the communications channel is retrieved, a new EMA throughput value is generated based on the total throughput value and the EMA throughput value, and adjusting the total throughput value based on whether or not the new throughput value is greater than a predetermined maximum throughput value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.