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.
David Quist
Hi,
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.
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[2]
Sudhir Balasubramanian. (2015, July) Queues, Queues and more Queues.
http://blogs.vmware.com/apss/2015/07/queues-queues-queues-2.htm
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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.
http://blogs.vmware.com/apps/2015/07/queues-queues-queues-2.html