An apparatus and method for deterministically killing one of redundant
servers on a common network is disclosed. The apparatus includes a
chassis that encloses the servers and a storage controller, status
indicators generated by the servers to the storage controller, and kill
controls, generated by the storage controller to respective ones of the
servers, each for killing a respective one of the servers. The status
indicators and kill controls are wholly enclosed in the chassis. The kill
controls deterministically disable the killed server on the network
independently of the state of the server to be killed. That is, the
server does not need to be able to respond to a command to be disabled on
the network. In one embodiment, the kill controls comprise reset signals.
After the storage controller deterministically kills one of the servers,
the other server takes over the identity of the killed server on the
network.