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Storage I/O Performance on VMware vSphere 5.1 over 16 Gigabit Fibre Channel


Latest Revision:
Aug 14, 2012



Fibre Channel (FC) interconnect speed has increased to 16 gigabits per second (Gbps). To take full advantage of this enhancement, VMware vSphere 5.1 has added support for the 16Gb FC host bus adapter (HBA). This white paper illustrates the improvements in storage I/O throughput that vSphere gains when using a 16Gb FC HBA instead of an 8Gb FC HBA. In addition, this paper looks at the CPU efficiency of the vSphere host when handling the increased storage I/O.

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