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Luca82
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Is the vmkernel network limited to 40% for backup traffic?

Post by Luca82 » Aug 08, 2019 12:17 pm

Hi everyone, I am setting up a backup solution which uses the vmkernel management network for data tranfert (NBD).
I read in this link
https://www.veeambp.com/proxy_servers_i ... _mode#pros
ad focus on the following point:
"Typically, network mode uses only up to 40% of the available bandwidth of the external VMKernel interface due to throttling mechanisms implemented on the management interfaces."

So...what means "tipically" and where can I found a VMware or Veeam KB/documentation about that? I already check on vmware community but it seems that no one knew about that information.
Can you please help me to understand if is it true and if there is an official documentation/kb or prove about that?

Thank you

foggy
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Re: Is the vmkernel network limited to 40% for backup traffic?

Post by foggy » Aug 08, 2019 12:33 pm

I'm not sure there's any official documentation on that, it's mostly a common knowledge that is based on real-world experience.

Gostev
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Re: Is the vmkernel network limited to 40% for backup traffic?

Post by Gostev » Aug 08, 2019 2:43 pm

Yep, basically this number was obtained empirically (based on real-world observations).

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