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"The most important thing to understand about the Calxeda architecture is its Fabric Switch. Each "node" in a Calxada system is a quad-core ARM Cortex-A9 SOC running its own OS instance. And the Fabric Switch can be thought of as an embedded Ethernet switch. A really fast, cheap, power-efficient switch... the sort of thing that will make anyone building out cloud infrastructure very happy, but will, I expect, keep some Cisco execs awake at night."
Calxeda reveals details of the quad-core EnergyCore ECX-1000 processors targetting servers.
"Calxeda, HP Usher Low-Power ARM Chips into Servers" - Web page link
"The EnergyCore processor SoC includes a supercomputing-class 80-Gigabit fabric switch and an integrated management engine with power optimization software, all on a single piece of silicon, according to Calxeda. The EnergyCore SoC also includes a full complement of server I/O features (10 Gbit/s Ethernet MACs, four PCI Express Gen 2 links and five 3 Gbit/s serial ATA interfaces, according to EE Times) and a 4MB ECC L2 cache, allowing a complete server node that consumes only 5 watts, including 4GB of ECC memory and a large capacity SSD."
"HP builds prototype for Calxeda ARM server" - web page link
"Hewlett-Packard is building a prototype system using 2,800 of the Calxeda chips as part of what it calls Project Moon Shot. The so-called Redstone Development System will be running before June in an HP Houston lab where selected customers and partners can run tests on it directly or remotely.
HP expects Redstone will reduce energy consumed on select workloads by 89 percent compared to x86 servers and reduce cost by 63 percent, said Jim Ganthier, vice president of marketing for HP's x86 server business.'