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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.
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For more information on this topic, I recommend Don
Burleson's latest book "Oracle
Tuning: The Definitive Reference".
You can buy it direct from the publisher for 50%-off and get
instant access to the code depot of Oracle tuning scripts: |
http://www.rampant-books.com/book_1002_oracle_tuning_definitive_reference_2nd_ed.htm
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