Method for changing fibre channel speed of a drive loop with ESM-controlled drive boxes using redundant drive channels
US7177942B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2001 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Sep 13, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2007
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a system for adjusting the speed of operation of a channel for communicating with disk drives in a multi ported system, comprising a bridge controller having a first channel and a second channel and a plurality of enclosure services modules, each having a first channel connected in sequence from a bridge controller to a first enclosure services module and successively connected to successive enclosure services modules to a last enclosure services module and each having a second channel connected in reverse sequence from the bridge controller to the last enclosure services module and successively connected to the successive enclosure services modules to the first enclosure services module. In the disclosed method for changing the speed of operation of a channel, a change speed is performed on either the first or second channel and the other of the first and second channel is used to send change speed frames from the bridge controller to each of the plurality of enclosure services modules.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.