Information Week: A Delicate Balance — Load-Balancing Switches And Routers May Be A Good Option If Your Company Needs The Kind Of Scalability That Clustering Doesn’t Offer Yet

“Software-only solutions are typically add-ons to Windows NT or
Unix servers running Linux or other flavors of Unix. They typically
require two network adapters, one for the interface to the Internet
and another for the interface to the local network and the servers
in the cluster.”

“For a taste of a software-only product, Coyote Point Systems
Inc. has a free limited-feature version of its FreeQualizer
product. FreeQualizer runs on any server running FreeBSD