A first computer system may be configured to execute a first application
in a first virtual machine. A second computer system may be coupled to
the first computer system. In response to a failure, the first computer
system is configured to failover the first virtual machine to the second
computer system. A carrier medium comprises first instructions which,
when executed, initiate a failover of a first virtual machine. An
application executes on the first virtual machine. The failover occurs
from a first computer system on which a failure occurs to a second
computer system.