Hardware Fault Injection with UMLinux

The UMLinux [3] environment provides virtual machines on top of which the Linux operating system and off-the-shelf software is installed. Using UMLinux, you can set up systems consisting of several networked virtual machines. A userfriendly GUI guides you through the process of configuring the virtual hardware. Once the hardware is set up, you can proceed to boot the Linux operating system and install off-the-shelf software just as you would on a real machine. Thus popular Linux distributions like RedHat or SuSE and software like the Oracle database system run on top of the virtual machines out of the box. The GUI allows you to control virtual machines interactively, just as though you were sitting in front of them. You have access to (virtual) keyboard, mouse, and monitor as well as the system’s drives and on/off buttons. A UMLinux virtual machine is fully network capable and you can connect it to other virtual machines as well as to real machines. The GUI will guide you through the process of setting up the network connections. To analyse a system’s behaviour in the presence of faults and to set up worst-case scenarios, you can use the GUI to inject faults in the hardware of a virtual machine.