I am trying to bond two nics together to get better performance. I have two 1000MBps Intel Nics. When I had one nic I was running some benchmarks getting 106 MB/s. This is pretty close to 1GBps. So I am happy with that. When I add a second nic and bond it together with Mode 0 (balance-rr) I still see the same 106 MB/s.
My setup is:
Server ====== Switch ===== Storage
Both the Storage and the Server have two nics hooked up. I know it is not the storage because I can run two benchmarks at the same time and get 2 Gbps through put.
I am pretty sure this setup is just using one nic. Is there anyway to set things up to get better performance?
Best Answer
I think you may be assuming that bonding can do more then what is actually possible. A single connection between two host will pretty much never be able to use more then the capacity of a single interface. Aggregation is useful when you have lots of parallel connections from many hosts. Check the description for mode 0.
It only does round robin on the packets being transmitted. It doesn't and can't do anything to balance the received packets. Incoming packets will pretty much be limited to a single interface. If your test is to copy files from the storage array to your server, then you are probably receiving data for the most part.