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Oracle10g Grid Computing with RAC
Chapter 3 - High Performance and Highly Available
Database Clusters

Other Architectures

Single Server

Federated Server

There is one instance of SQL Server on the production server.

There is one instance of SQL Server on each member server.

The production data is stored in one database

Each member server has a member database. The data is spread through the member databases.

Each table is typically a single entity

The tables from the original database are horizontally partitioned into member tables. There is one member table per member database, and distributed partitioned views are used

All connections are made to the single server, and all SQL statements are processed by the same instance of SQL Server.

The application layer must be able to collocate SQL statements on the member server containing most of the data referenced by the statement

  Table 3.3

IBM Offered Parallel Database Systems

IBM offers DB2 databases both for a shared-nothing (for Unix, Linux, and Windows) and a shared-disk (on the mainframe only) approach. At a very high level view, architecture of IBM Parallel Sysplex and Oracle RAC look very much similar. However, they differ heavily in their implementation methodology. Both of these products follow the Shared Architecture. Oracle implementation provides an open system approach and it is possible to implement it by utilizing commodity-style components. Parallel Sysplex implantation depends on the special hardware components provided by IBM. Again looking at the UNIX based UDB EEE parallel database, it is more of a Partitioned Database than Parallel Database It is parallel to the extent you don’t care where you query or access. However, the processing is done by function shipping method when a query needs to access data attached to another node.


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.


Oracle Consulting Services

Burleson Oracle Consulting offers Senior Oracle consultants which are available for all areas of Oracle support.  Common Oracle consulting support activities include short-term Oracle tuning, Oracle database troubleshooting, Oracle9i and Oracle10g migration, Oracle9iAS App Server consulting, Oracle design reviews and Oracle requirements evaluation support. Oracle support and Oracle consulting services are priced by the hour, so you only pay for what you need. These one-time Oracle consulting services commonly include:

  • Answering questions from your Oracle DBA technical staff

  • Repairing down production Oracle database systems

  • One-time Oracle tuning evaluation

  • Guru support for your Oracle DBA

  • Installation of Oracle application packages

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