Exploring the SMI Database

When you list all the databases on your INFORMIX server, you will see one called "sysmaster." This is a special database and is one of the new features that first appeared in INFORMIX-OnLine DSA 6.x and 7.x. This is a database that contains tables that can be used for monitoring your system. These are referred to as the System Monitoring Interface (SMI) tables. In this chapter we will explore some of the tables and views that are in this database.

The sysmaster database is described as a pseudo database. That means most of its tables are not normal tables on disk, but pointers to shared memory structures in the OnLine engine. The sysmaster database contains over 120 tables. Only 18 of these tables are documented in ...

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