Have you ever wondered if that black box in your datacenter called the network is performing as well as it should be? Do you have random periods of time where normally fast data movement processes seem to take forever, but the diagnostics on your servers all seem fine? What about validating the network performance back and forth to your disaster recovery site? Let’s go through how to check the network to make sure that all is well, or generate some objective repeatable tests that you can bring to your networking group and ask questions with.
I frequently mention in my presentations a free utility that I use called iperf that you can use to validate your network performance. Several questions came up about where to get it and how to use it. Read on for a walk-through of how to use iperf!