Chapter 16 Server Racks and Blades
As an organization grows, the size and the number of servers it deploys grows as well. Some applications lend themselves to deployment on larger and larger servers, while other environments benefit from the deployment of larger numbers of servers. You scale up to larger systems when processing is the main consideration, as might be the case with an enterprise database server, such as DB2, Oracle, or SQL Server. You scale out when the primary consideration is the amount of I/O you can supply. Examples of applications that benefit from scaling out are the server farms you see deployed in webservers, such as Apache, Microsoft IIS, iPlanet, and Zeus.
If you are situating a large multiprocessor server, such as a ...
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