Change to Static Pin Group

[Chris DePetro]

I have a customer that requires a static pin group to a new uplink, due to application design.  Would creating a static pin group for the existing uplink port-channel and assigning to existing vNIC templates cause network disruption?

Either way, the change will be planned for a maintenance window.  But, I would like to know what to expect, such as affects to existing applications.

Thank you.

[Wes Austin]

Chris,

If you are doing any kind of re-pinning of the virtual interfaces, this is going to cause a disruption. If possible, I would conduct a test on a few servers to gauge the production impact for your domain specifically, but generally speaking, I would expect the links to flap if you are moving pin groups around.

HTH,

Wes

[Chris DePetro]

Thank you Wes.  I will confirm there are separate vNIC templates for Test and Production, so we can apply the change to Test only.

Thanks,

Chris

[Walter Dey]

Hi Chris

I've seen almost no static pinning configuration; the management effort is just challenging. Why ?

I think you have to do 100% static pinning; if you do a mixture of static and dynamic pinning, the latter will use as well the static pinned links.

Walter

PS. a workaround might be disjoint vlan's

[Chris DePetro]

Hi Walter,

Thanks for your input.  We found, unfortunately, the issue with dynamic pinning using the links designated for static.  I also agree with your suggestion for a workaround, but the network design of a completely segregated physical network had already been implemented by the time I was pulled into the project - to assist with UCS configuration.

Thanks,

Chris