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9-8 IBM Informix OnLine Database Server Administrator’s Guide
What Is Multiple Residency?
Create multiple configuration files and OnLine database server
environments that are precision-tuned for a specific use.
Because multiple OnLine database servers each have their own
shared-memory configurations and locations, you can create a con-
figuration file for each database server that reflects special tuning
requirements.EachapplicationcouldruninanOnLineenvironment
designed especially for it.
Separately administer sensitive databases.
You might find it useful to isolate applications or databases that are
criticallyimportant,eitherforreasonsofsecurityortoaccommodate
more frequent archiving than is required for the majority of the
databases.
Simulate and test distributed data transactions on a single host
computer (with IBM Informix STAR).
Ifyouaredevelopinganapplicationfor usewithIBM InformixSTAR,
you can perform your distributed data simulation and testing on a
single host machine for the sake of convenience. Later, when a net-
work of host machines is ready, you can install the application
without changes to application source code.
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