The hardware requirements of the perfSONAR Toolkit largely depend on the type of measurements you plan to run. A few things should be considered when choosing hardware:
At a bare minimum the perfSONAR Toolkit is a customized distribution of CentOS 6 so it must meet the minimum requirements of that operating system.
In addition, it is recommended you look at the hardware selection page of the main perfSONAR web site for a detailed discussion of hardware considerations. It contains examples of many configurations including virtualized environments, high performance bandwidth testing and others.
It is also recommended you look at our Host Tuning section for details on how to get the most out of your deployed hardware.