To: jmanvegas who wrote (27398 ) 6/25/2000 5:22:00 PM From: J Fieb Read Replies (1) | Respond to of 29386
InfiniBand Specs Fleshed Out (06/23/00, 3:21 p.m. ET) By Mitch Wagner, InternetWeek Intel and systems vendors met last week at a developers' conference to hammer out specs for InfiniBand, a technology that could be used to link the various types of networks in a data center and reduce the number of nets IT managers have to juggle. Infiniband would replace the PCI bus on PCs and servers and be used to tie systems, storage devices, and WAN devices into a single network. IBM last week outlined plans to develop hardware implementing InfiniBand, which could be available in products from IBM and other vendors in the second half of 2001. Why the move to Infiniband? The PCI bus, the current standard for I/O for PCs and other commodity systems, is running out of gas. Even the new PCI-X standard is relatively slow, running at about 1 Gbyte/s, and multiple devices added to a PCI-X bus must all share the same bandwidth. By contrast, InfiniBand starts at 2.5 Gbyte/s in each direction. Later generations could offer speeds of 10 to 30 Gbyte/s. Moreover, since InfiniBand is a switched-fabric architecture, additional devices added to the connection will bring additional bandwidth, said Jim Pappas, director of initiative marketing for the enterprise platform group at Intel, Santa Clara, Calif. "InfiniBand is going to provide higher bandwidth and make it simpler to interconnect different machines," said Linley Gwenapp, an analyst with the Linley Group. "SCSI and buses like that are running out of bandwidth, and InfiniBand is going to be faster and more scalable." InfiniBand has the support of major systems vendors. In addition to Intel, the steering committee developing the specifications includes Compaq (stock: CPQ), Dell (stock: DELL), Hewlett-Packard (stock: HWP), IBM, Microsoft (stock: MSFT), and Sun (stock: SUNW). The technology has the backing of 160 companies, including systems vendors and networking and peripherals vendors. The specifications are expected to be released in September or October, Pappas said. IBM said it plans to ship host channel adapters for servers, target channel adapters for storage and networking devices, and eight-port switches for InfiniBand late next year. In the first phase of InfiniBand deployment, beginning when products ship late next year, systems, storage, and networking hardware will support both PCI and InfiniBand. But ultimately they'll all connect through a single InfiniBand switch and share resources, Pappas said. InfiniBand also will eventually replace Ethernet in the data center, although Ethernet will continue to be used in buildings and to connect buildings on a campus, said Mitch Shults, director of business development at Intel. The technology also will be able to tunnel storage over IP, using IPv6 -- something that would allow users to perform remote mirroring. So there GG. The end of Ethernet in data centers from someone who should know....