Quick Beginnings for DB2 Extended Enterprise Edition for UNIX
The information in this section describes DB2 server
instances and how to work with them.
An instance is a logical database manager environment where you catalog
databases and set configuration parameters. Depending on your needs,
you can create more than one instance. You can use multiple instances
to do the following:
- Use one instance for a development environment and another instance for a
- Tune an instance for a particular environment.
- Restrict access to sensitive information.
- Control the assignment of SYSADM, SYSCTRL, and SYSMAINT authority for each
- Optimize the database manager configuration for each instance.
- Limit the impact of an instance crash. In the unlikely event of an
instance crash, only one instance is impacted. The other instance may
continue to function normally.
Each additional instance requires additional system resources (virtual
storage and disk space) and more administration.
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