NonStop Systems Introduction

The Application Server Environment
NonStop Systems Introduction—527825-001
3-15
Server Handling
As the demands of your application increase still further, you just add more processors
to your NonStop server, attach more clients and disk drives to these processors, and
start additional copies of the servers in the new processors.
Distributed Processing
In the preceding example, the server application is a local application; all processing
takes place at a single node. The capabilities of the application servers makes it
possible to distribute the components of an application across multiple nodes.
Figure 3-11 on page 3-16 shows an example of a distributed application. In the
example, processing takes place in two separate nodes. Clients on each node can
access application components on the other node remotely.
Figure 3-10. Expansion of Applications
Processor 1
Processor 3
Processor 2
Database
C
Database
B
Server C
Server B
Server A
Database
A
VST025.vsd
Process and
link
management
services
NonStop server
Client
apps
Client
apps
Copy of
Server A