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Oracle10g Grid Computing with RAC
Chapter 12 - RAC Design Considerations


This chapter focuses on the issues that must be considered when designing for RAC. The reasons for utilizing RAC must be well understood before a proper implementation can be achieved.

Essentially, there are only a couple of reasons to use RAC. RAC spreads the load across multiple servers, provides high availability, and allows larger SGA sizes than can be accommodated by a single Oracle10g instance (for example, on Windows 2000 or Linux implementations).

The most stringent design requirements come from the implementation of high availability. A high availability RAC design must have no single point of failure, a transparent application failover, and reliability, even in the face of disaster at the primary site. A high availability design requires attention to equipment, software, and the network. This three-tier approach can be quite daunting to design.

Let's look at two key design considerations. The first is the design of the equipment needed to support a high availability (HA) RAC configuration. Next, is the methods of configuring RAC instances in a RAC cluster to meet performance and HA requirements must also be considered.

For more information, see the book Oracle 11g Grid and Real Application Clusters 30% off if you buy it directly from Rampant TechPress . 

Written by top Oracle experts, this RAC book has a complete online code depot with ready to use RAC scripts.  

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Burleson Consulting can offer world-class remote Oracle database support at super-affordable prices.

Our remote Oracle DBA service provides 100% of the remote Oracle database administration needs for your company, and includes 24x7 access to our staff of 100% OCP Certified Oracle DBAs. 

We require a 12 month service commitment and include the following services:

  • Initial configuration review and problem identification
  • Installation of Oracle statistics collection mechanisms and quarterly database growth summaries
  • Hourly monitoring of your Oracle database for pending problems
  • Periodic performance analysis & identification of tuning activities
  • Twenty Four hour Oracle emergency support
  • Reporting and resolving all serious Oracle alert log messages
  • Free use of the BC TablePack, ServerPack and AuditPack services
  • Quick response emergency support for production database outages
  • Four hours of free remote DBA support every month. You can use these free hours for any DBA activity, including database analysis, system design, production migrations or personal mentoring.

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