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vSphere 6.0 U2 Storage Performance with 32Gb Fibre Channel

We compared the I/O performance of vSphere 6.0 U2 over 16Gb and 32Gb Emulex FC HBAs connected via a Brocade G620 FC switch to an EMC VNX7500 storage array.

Iometer, a common microbenchmark, was used to generate the workload for various block sizes. For single-VM experiments, we measured sequential read and sequential write throughput. For multi-VM experiments, we measured random read IOPS and throughput.

Our experiments showed that vSphere 6 can achieve near line rate with 32Gb FC.

For details, please see the whitepaper Storage I/O Performance on VMware vSphere 6.0 U2 over 32 Gigabit Fibre Channel.

2 thoughts on “vSphere 6.0 U2 Storage Performance with 32Gb Fibre Channel

  1. David Quist


    Curious – was any testing performed with a single PVSCSI adapter?

    The second reference in the whitepaper returned a 404 for me, the first reference worked fine.
    Sudhir Balasubramanian. (2015, July) Queues, Queues and more Queues.

  2. Kinson Ho

    The experiments for this paper all used multiple PVSCSI adapters.

    The URL for the 2nd reference has been fixed in the paper. Thank you for catching it.


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