Access "Virtual I/O aims to streamline network traffic"
This article is part of the Vol. 5 No. 8 October 2006 issue of What you need to know about data storage provisioning
New servers usually mean Fibre Channel (FC) host bus adapters (HBAs) for SAN traffic and Ethernet cards for NAS traffic. But I/O virtualization, or virtual I/O, changes that assumption. "Virtual I/O allows servers to connect to a multitude of different targets irrespective of the protocol," says Patrick Guay, senior VP of marketing at Voltaire, a provider of virtual I/O routers in Billerica, MA. To accomplish this, the virtual I/O router performs a "network address translation [NAT]-like function," says Bill Erdman, director of marketing at Cisco Systems' Server Virtualization Business Unit. Cisco's SFS 3012 Multi-fabric Server Switch connects to servers using InfiniBand and then translates the InfiniBand protocol to the respective IP or FC storage protocol used by the storage array. Cisco finds that virtual I/O offers organizations the following benefits: It creates a pool of physical HBAs and network interface cards (NICs) that may be shared between servers. It eliminates the need to install and cable HBAs and NICs for each server. It breaks the physical 1... Access >>>
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