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Scott Drummonds on Virtualization

PVSCSI and vmxnet3

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I heard a myth today that VMware did not support running vmxnet3 and PVSCSI in the same virtual machine.  I have talked with a dozen engineers on the subject since it came up this morning and all swear the drivers run great together.  The two drivers work on very different and unrelated stacks in the VMkernel.  There are no inter-dependencies of any sort between PVSCSI and vmxnet3.

I think this rumor sprung from our somewhat limited support of paravirtualized drivers in FT-protected virtual machines, which will be improved in a subsequent release.  And while most of you probably know that PVSCSI and vmxnet3 run together, I thought it worth a brief comment on this blog.  Myths are like cockroaches.  For every one you see there are hundreds hiding behind the walls.

One Response

I almost had a minor coronary when I read the first line of this. Glad to hear though that it is just a myth!!

I can confirm we run our virtualised vCenter server with both the PVSCSI and VMXNET3 and have had no issues so far.