TheBobkin
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Hello Srodenburg,

That link now points to the new Networking guide (which didn't exist at the time of my post), I can't seem to find a copy of it locally but maybe you can find one online somewhere if you want to clarify what it did/didn't say back then.

Edit: Found it, google VMware® vSAN™ Network Design-OLD - VMware Storage Hub:

"vSAN manages congestion by introducing artificial latency to prevent cache/buffer exhaustion. Since vSAN has built-in congestion management, disabling flow control on VMkernel interfaces tagged for vSAN traffic is recommended. Note Flow Control is enabled by default on all physical uplinks. For further information on Flow Control see KB1013413. VMware Recommends: Disable flow control for vSAN traffic."

And yes, good point that the recommendation for this has changed, nowadays we only advise disabling this with the switch-vendors blessing.

Bob

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