Informix Multi-Tier
The OpenLink Multi-Tier ODBC Driver for Informix comprises two parts.
On the server you install a request broker which handles incoming
connections, and a database agent which makes the connection to the database
itself.
On data-consuming machines (clients or application-servers), you
install a generic client. This approach presents an extra layer of
abstraction, such that by installing one component on each client, you can
connect to several servers, or several different databases via the same
broker.
Multi-tier is ideally suited to larger installations where the network
administrator wishes to handle security rules and performance configurations
centrally.
The OpenLink Multi-Tier Drivers for Informix are a Type-A class driver
developed using the ESQL/C call level interface.
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| Informix Multi-Tier Architecture Diagram Image scaled down; Click to enlarge.
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