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Porting To Parallel Server

Oracle Tips by Mike Ault


Parallel Server

In Oracle parallel server two or more instances attach to the same database by use of the Oracle parallel cache management system. In shops that are used to addressing databases and instances as synonymous objects, this distinction can be confusing. Remember that an instance is the set of processes and the SGA (System Global Area) and the database is the set of database files. Unless the platform used for the parallel system is able to partition CPUs (such as in theE10000 from SUN) the instances in a parallel server must be on separate platforms running the same operating system, at the same version level and be running the identical version of Oracle with the parallel server option installed. Figure 3 shows the configuration for this option.

 


For more information on this topic, I recommend Don Burleson's latest book "Oracle Tuning: The Definitive Reference". 

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