Selectively adjusting signal compensation parameters and data rate for transmission of data through a smart cable
US7444445B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2006 |
| Grant date | Oct 28, 2008 |
| Priority date | — |
| Expiry date | Apr 19, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2213/0028
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data storage domain is provided to determine a set of signal conditioning parameters for data being transmitted over smart cables in a data storage domain between an SAS switch and SAS expanders and among SAS expanders. A first expander interrogates any attached smart cables for cable persistent data and captures in a table the cable persistent data. One or more interfaces of the first expander are operated at a first data rate. The switch collects the captured cable persistent data and, in response, determines a set of signal conditioning parameters for data being transmitted on each attached smart cable. The set of signal conditioning parameters includes a first maximum data rate for each attached smart cable. The signal conditioning parameters are then set for each attached smart cable in accordance with the set of determined signal conditioning parameters, whereby the data storage domain is tuned for optimum signal transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.