<
architecture> (RAIS) The use
of multiple
servers to provide
the same service in such a way that service will still be
available if one or more
of the
servers fails. The term may
or may not imply some kind
of load balancing between the
servers. See
cluster.
The term "RAIS" follows
RAID, which describes schemes for
resilient disk storage.
(2007-02-28)