
246 Essentials of Cloud Computing
Moreover, a few equipments such as storage devices are often as large as
the racks. Such equipments are generally placed alongside the racks. Large
data centers house several thousand servers wherein sometimes shipping
containers packed with 1000 or more servers each are used. In the event of
a failure or when upgrades are required, the entire containers are replaced
rather than replacing an individual server.
10.2.4 Storage and Networking Infrastructure
Typically, data centers require four different types of network accesses and,
hence, could use four different types of physical networks as shown below:
1.