
302 The Green and Virtual Data Center
or selective applications being recovered. Challenges include dedicating
extra hardware on a one-to-one basis and deciding which servers and appli-
cations should be recovered to available physical resources.
Maintaining BC/DR plans is complex, including testing of configura-
tion changes as well as associated costs of hardware, software, and ongoing
operational costs of power, cooling, and floor space. Other issues and chal-
lenges include difficulties in testing or simulating recovery for training and
audit purposes as well as inefficient use of available network bandwidth,
inhibiting the amount of data that can ...