Sign up for our newsletter and get the latest HPC news and analysis.

QDR InfiniBand at a Distance – Obsidian's Longbow C400 at ISC'13

In this video, David Southwell from Obsidian Strategics describes the company’s new Longbow C400 InfiniBand range extender.

InfiniBand LAN speeds hit 40Gbits/s some time ago, but while 40G wavelengths are possible on the optical WAN they are not widely available and remain far more expensive to provision than standard 10G circuits. With C400 we took a hybrid approach, channeling the 40G WAN traffic over four 10G circuits, typically provisioned as separate wavelengths within a Wavelength Division Multiplex (WDM) system on a single fiber pair. End-to-end InfiniBand connectivity is preserved even as individual WAN wavelengths may fail.”

Read the Full Story or check out more from the show at our ISC’13 Video Gallery.

Resource Links: