Intel ready to fatten up server pipes

SAN JOSE - Intel will next month announce a 10G bit/sec Gigabit Ethernet NIC that promises to more than double the connectivity speed of today's servers.

The Intel Pro/10GbE LR Server Adapter, to be released at the annual Intel Developers Forum in March, will let high-end Intel-based servers move data at up to 7G bit/sec. Experts say 10 Gigabit NICs also could help improve performance of applications residing on large servers, while keeping up with the growing bandwidth and processing capabilities of desktops - some of which are now as powerful as servers.

"This is the next logical step in the evolution of 10 Gigabit," says Kevin Walsh, senior network engineer at the San Diego Supercomputing Center (SDSC). "We are looking to use [the new Intel NIC] for servers and data-intensive clusters."

The Intel 10 Gigabit cards are in beta tests SDSC, which operates a cluster of 512 Linux servers connected with Gigabit Ethernet. The cluster is part of the Teragrid, a project being developed with the National Center for Supercomputing to build the world's largest distributed grid computer.

While Walsh has not seen full 10G bit/sec throughput on the NICs that SDSC has tested, he says single 10 Gigabit NIC could bring other benefits to servers. Walsh says that when multiple Gigabit NICs are clustered in a server, overall performance is bogged down because the multiple devices are all making "interrupt requests" of the CPU and taking up bus bandwidth.

"You may not get a full 10 gigabits," on a 10 Gigabit NICs, "but if you get 3 to 4 gigabits per second and lower the interrupt [request] count at the same time, you're lowering the CPU cycles and making the [processor] available for computing and not networking," he says.

Researchers and supercomputing technologists aren't the only users looking for bigger server pipes. R.R. Donnelley, a Chicago printing services company, uses a HP Superdome Unix server to consolidate multiple applications onto a single box.

While server consolidation has helped save the company money, increasing the bandwidth to all those consolidated applications is a priority, says John Schaefer, the company's vice president of infrastructure.

Pricing for the Intel Pro/10GbE LR has not been set, but the NIC is expected to cost "significantly less" than a 10GBase-X switch port, according to Tim Dunn, vice president and general manager of Intel's LAN access division.

Per-port pricing for 10G Ethernet ranges from $17,000 to $80,000. Some industry watchers expect 10 Gigabit NICs to start at around $10,000 to $15,000 per unit.

The new Intel adapter will use the 1310-nanometer version of the 803.3ae 10G Ethernet standard, which supports communications up to 6.2 miles over single-mode fiber. The adapter fits into a PCI-X slot, and will work on PCI-X Version 1.0 and Version 2.0, which were approved last year. Drivers for the NIC will be available for Microsoft Windows 2000, Windows XP and Linux kernel Version 2.4.

Intel, the leader of the Gigabit Ethernet NIC shipments, displayed its 10 Gigabit "Kemano" NIC - as it is referred to at Intel - at the NetWorld+Interop 2002 show last spring as part of a 10G Ethernet Alliance demonstration. Instat/MDR expects the market for 10 Gigabit NICs to be limited at first, but shipments are expected to increase from around 2,000 units this year to 355,000 units worldwide by 2006.