There is an excerpt online from the book "Oracle Exalogic Elastic Cloud Handbook, (McGraw-Hill 2012" co-authored by Tom Plunkett, TJ Palassolo and Tejas Joshi, that explains some of the nomenclature surrounding Oracle's cloud solution and then further explains the distinctive features of the Exalogic cloud and Exadata that set them apart from the competition. One of the most basic distinctions stems from Oracle's "engineered solutions" approach to systems design. The integrated machines that result from this approach, the authors explain, are remarkably more capable than a simple appliance in their ability to be configured for a number of applications. While appliances and similar solutions have been involved with data warehousing for a long time, the authors write, Exadata, however, has optimizations that existing data warehouse appliances do not have. Furthermore, Exadata also provides the first optimized solutions for OLTP, including the elimination of unnecessary communication between the database server and the storage server. A similar expediting of internal processes has been built into the Oracle Exalogic Elastic Cloud, whose hardware components are interconnected by an InfiniBand network fabric whose extremely high bandwidth and low latency deliver major performance gains with respect to communication between the application server and the database server, and with respect to communication between different application server instances running with in the Exalogic system, the authors point out.

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Six-minute Demo on Oracle Exalogic Elastic Cloud

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