When you set up a File Server, there’re advantages to configuring multiple NICs. However, there’re many options to consider depending on how your network and services are laid out. Since networking (along with storage) is one of the most common bottlenecks in file server deployment, this’s a topic worth investigating. Throughout this blog post, we’ll look into different configurations for Windows Server 2008 (and 2008 R2) where a file server uses multiple NICs. Next, we’ll describe how the behavior of SMB client can help distribute the load for a file server with multiple NICs. We’ll also discuss SMB2 Durability and how it can recover from certain network failure in configuration where multiple network paths between clients and servers are available. Finally, we’ll look closely into the configuration of a Clustered File Server with multiple client-facing NICs.