Impact/Dependencies of changing 1G MAPI NIC card of all 3 DC exchange Servers | DC-Site

Al Amran 326 Reputation points
2022-01-09T05:59:14.753+00:00

We want to change 1G MAPI NIC card of all 3 DC exchange Server. Here I am attaching the network diagram of each Exchange Server.

Host Type: Physical Server
OS: Windows Server 2019
NIC Teaming: Windows Server 2019

163369-image.png

If we change the NIC of 1G to 10G, NIC teaming will be changed?
If we change the NIC of 1G to 10G, NIC teaming will break?

Microsoft Exchange Online Management
Microsoft Exchange Online Management
Microsoft Exchange Online: A Microsoft email and calendaring hosted service.Management: The act or process of organizing, handling, directing or controlling something.
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Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
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  1. Andy David - MVP 142.3K Reputation points MVP
    2022-01-09T21:27:53.25+00:00

    As long as you are running the Teamed NICs in a supported fashion it should be fine.

    Are these servers in a database availability group? If so, I would activate databases to other servers then make the change.

    Note that in many cases, Teaming NICs is not really needed if using a Database Avail Group:

    https://learn.microsoft.com/en-us/exchange/high-availability/plan-ha?view=exchserver-2019

    163462-image.png

    If these are stand-alone servers, then I would make the change off-hours in case a reboot is needed (or services get hung )

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  1. Andy David - MVP 142.3K Reputation points MVP
    2022-01-09T13:47:46.62+00:00

    See:
    https://social.technet.microsoft.com/Forums/en-US/31c4e42c-5b21-4b72-a294-79950b9c67ca/nic-teaming-1gb-and-10gb?forum=winservergen#:~:text=Teaming%20of%20NICs%20with%20different,the%20speeds%20of%20the%20connections.

    Teaming of NICs capable of operating at different speeds but presently operating at the same speed is supported, e.g., a 10 Gbps NIC operating as a 1Gbps NIC may be teamed with another NIC operating at 1Gbps.

    Teaming of NICs with different speed connections is not supported.

    The teaming software will allow you to build such a team; however the traffic distribution algorithms in this release do not base the distribution on the speeds of the connections. A team consisting of a 10Gbps NIC and a 100Mbps NIC will send approximately half of the traffic to each NIC.