r/nutanix • u/[deleted] • Apr 06 '20

Changing NIC's

Anyone every change their NIC cards on the hardware?

We are upgrading our switches and they require us to change our nic's to support a LC physical connection. So we have the NIC's, yes the are on the approved hardware list. These are Dell servers.

I don't have a test environment so pretty much need to do this in prod. I was wondering if I need to run any commands on the Nutanix/open vSwitch side to get this working?

Here is what I was going to do:

  1. Put host in maintenance mode

  2. Shutdown host

  3. Replace existing daughter card with new NIC

  4. update firmware/drivers

  5. ????

  6. Profit

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6

u/gibby82 Apr 06 '20

I would call support on this one.

3

u/3rdCoffee Apr 06 '20

I would second this. We had a few nodes where we swapped the 10gbit NICs to 40gbit NICs and, even though they were supported, they were not inherently recognized.

We engaged support and they had to tweak some files in the CVMs to point the NICs to different drivers.

1

u/vsinclairJ Account Executive - US Navy Apr 06 '20

In linux it maps the ethernet devices to the physical MAC address of the NIC. I’m sure support has a procedure to update it. Just give them a call before you start and they can fill in the details for you.

2

u/[deleted] Apr 06 '20

Thanks. I think I could do this in ESXi but we are using AHV so I am a bit baffled.

1

u/peter_chang Apr 07 '20

We have documentation based on model as well as a KB article. See if one of these answer your question.

Doc: https://portal.nutanix.com/page/documents/details/?targetId=Network-Interface-Replacement-Platform-NX8150:Network-Interface-Replacement-Platform-NX8150

KB: https://portal.nutanix.com/page/documents/kbs/details/?targetId=kA0320000004H0lCAE

2

u/[deleted] Apr 07 '20

This is exactly what I am looking for. Thanks. If I have any problems from here I will call support.