Free Exadata Tutorials and Demonstrations

Let Oracle Certified Master DBA John Watson teach you what Exadata is and demonstrate how it works!

Oracle Exadata Database Machine

A Database Machine is a massively scalable and fault tolerant piece of hardware (CPUs, RAM, discs, and networking: all perfectly balanced) combined with the Exadata smart storage software. A really powerful database server, with a disc subsystem that understands the database and take over a huge proportion of the data processing workload. This is the “offload processing” feature: no other platform can do this.

Experience shows that porting a database to a DB Machine is easy – but actually getting the benefits is harder. Before making the investment (a huge investment) in a DB Machine you will do a POC that shows that the applications work. That doesn’t mean they work as well as they could. Offload processing is more elusive than one might think, and to achieve it you may need to reconfigure your data structures and adjust your code. This is a non-trivial task that goes far beyond the usual SQL and segment tuning activities: it is a whole new layer of optimization.

We believe that the real ROI will come only from extensive work after the migration, as the application and the database are tuned to the capabilities of the Exadata platform. Yes, you will get an immediate performance boost – but you should be getting much more.

Let us help you optimize your applications for Exadata!

Contact us at 1-401-783-6172 or email us to see how we can help you.

Oracle Exadata Database Machine Tutorials
(Login Required for sessions 2 and above)

  1. About the Exadata Hardware
  2. What Makes the DB Machine Special
  3. Smart Scan in Theory
  4. How Smart Scan Functions – Demo
  5. Smart Scan in Practice
  6. Making Smart Scan Work – Demo
  7. HCC in Theory
  8. HCC performance and Compression Ratio – Demo
  9. HCC Limitations and Best Practices
  10. HCC Compression Degradation Issue – Demo
  11. Exadata is Good But Not Easy

Let us help you optimize your applications for Exadata! Contact us at 1-401-783-6172 or email us.


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What Makes the DB Machine Special

A Database Machine consists of two sets of Linux* machines. There’s one set of Linux machines that we call compute nodes, and these have masses of CPU, masses of RAM, and they run your database instances.

There’s a second set of Linux machines that have a vast amount of disk space. These are your storage tier, and it’s the Exadata software that links the compute nodes to the cell nodes, the cell nodes of the storage machines.

Now, you cannot install the Exadata software independently. It comes pre-installed on your DB machine. I think, with earlier releases, it was possible to license Exadata software independently and install it on your own box, but certainly with the current release, you cannot get it unless you buy a DB machine.

Well, what does Exadata deliver? It delivers certain capabilities that you cannot get in any other environments, and these are the abilities that we’ll be studying in the next few slides. The Smart Scan, that’s the one that gets all the publicity. It’s the ability to offload a large amount of the SQL processing from the database tier from the compute nodes to the storage tier to the cell nodes. You have a storage tier that is aware of the database and can take over some of the workload of executing your SQL.

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