The Oracle Exadata Database Machine provides an optimal solution for all database workloads, ranging from scan-intensive data warehouse applications to highly concurrent OLTP applications. With its combination of smart Oracle Exadata Storage Server Software, complete and intelligent Oracle Database software, and the latest industry standard hardware components from Sun, the Database Machine delivers extreme performance in a highly-available, highly-secure environment. With Oracle's unique clustering and workload management capabilities, the Database Machine is also well-suited for consolidating multiple databases onto a single grid. Delivered as a complete pre-optimized and pre-configured package of software, servers, and storage, the Sun Oracle Database Machine is simple and fast to implement and ready to tackle your large-scale business applications.
Please start reading to Oracle Resources
Note that the first global Exadata conference is going to take place (in Dallas) on 13-14 August too and most of the big names of the Exadata world are going to be there - see http://extremeexadata.com
Abdul, this is Tim Fox from Enkitec. I work with Kerry and Tanel (along with all the other smart guys at Enkitec) and we have built two training curriculums for Exadata. In short, one of the classes is for Database Developers and the other is for Database and System Administrators. You can see the full abstracts on our website at http://www.enkitec.com/education/exadata-training. Our classes are delivered using our own Exadata X2 Quarter Rack and we've received very positive feedback from our students (check out Linked In Exadata group).
Feel free to drop me a line if you are interested in training or help on Exadata.