Pathway/iTS System Management Manual (H06.03, J06.03+)

Introduction to Pathway/iTS System Management

HP NonStop Pathway/iTS System Management Manual—426748-005

1-8

Distributing a Pathway Environment

Depending on the requirements of your application, you might distribute a Pathway

environment over several CPUs in a single HP NonStop system or among several

NonStop systems.

A PATHMON environment is a set of Pathway environment objects controlled through

a single PATHMON process. You arrange PATHMON-controlled objects in different

processors of your NonStop system to support the workload required by your

application and to achieve optimum response times for your business transactions.

Figure 1-2 on page 1-9 shows a single PATHMON environment distributed over two

CPUs in a system.

You can distribute functions over different physical or geographical locations by

distributing a single PATHMON environment across a network of nodes connected by

communications lines, or by configuring two or more PATHMON environments to

communicate across such a network. In such distributed environments, you can enable

TCPs on one node to access a database maintained by server processes on another

node. This configuration allows multiple applications on different nodes to share data.

Figure 1-3 on page 1-10 shows two PATHMON environments distributed over two

nodes. A TCP in node \NODEA forms a link across a communications line to a server

class controlled by the PATHMON process on \NODEB. The TCP is an external TCP

with respect to the objects controlled by $PMB.