The data center is a key resource. Many organizations simply shut down when
employees and customers are unable to access the servers, storage systems, and
networking devices that reside there. Literally, millions of dollars can be lost in
a single hour of down time for some businesses, such as large banks, airlines,
package shippers, and online brokerages. Given these consequences, reliability is
a key data center attribute. Another is flexibility. Tomorrow’s requirements may
not be the same as today’s. Advances in technology, organizational restructuring,
and even changes to the broader society may impose new demands....