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Tolly Group White Paper Series– Architecture in Action: Building SANs with Stacks
08 August 2006
QLogic commissioned The Tolly Group to build a microcosm of an SMB/Enterprise Fibre Channel environment to quantify critical elements related to scalability and management of competing SAN approaches, as well as to analyze the economic impact of each. This white paper provides a hands-on assessment of the scalability issues and the cost-of-ownership for the QLogic SANbox 5000 versus rival products that utilize a different architectural approach to SANs.
QLogic SANbox 5000 series “stackable” switches provide high-speed 10-Gigabit per second (Gbps) links dedicated to linking individual physical switches without reducing the number of ports available for use by end-user devices. In effect, this approach creates a virtual backplane bringing the performance advantages of the chassis approach to low-cost fixed-port switches. The white paper is based on two hands-on examinations conducted by The Tolly Group.
In the first part, The Tolly Group “built out” an actual SAN using two alternative offerings. The goal was to illustrate the configuration effort and to quantify hardware/software requirements associated with growing a SAN from an “entry” level connecting just two Fibre Channel devices through to a point where scores of devices could be connected.
In the second part of the study, engineer/analysts built and validated a cost model comparing the QLogic solution versus several leading “non-stackable” alternatives.
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