WebSphere Enterprise Service Bus for z/OS, Version 6.2.0 Operating Systems: z/OS


Differences between stand-alone and network deployment configurations

A stand-alone application server cell, also known as a base application server node, is the simplest configuration you can use to deploy and run WebSphere® ESB for z/OS® applications. A stand-alone configuration provides a framework for a quick start or development environment and if you are configuring for a small environment you may find that a single server topology is all you need to meet you requirements. However, you are probably more likely to use a network deployment configuration because it can administer application servers that may be dispersed among multiple sysplexes in a network environment. A network deployment configuration is intended to support multiple application servers which can be clustered to provide high availability and reliability.

The main differences between a stand-alone and a Network Deployment configuration are:
Stand-alone configuration Network deployment configuration
A minimum of four address spaces are allocated for the following processes:
  • Location service daemon
  • Controller
  • Servant
  • Control region adjunct

The maximum amount of address spaces is limited only by resources

A minimum of seven address spaces are allocated for the following processes:
  • Location service daemon
  • Application server controller
  • Application server servant
  • Application server control region adjunct
  • Deployment manager controller
  • Deployment manager servant
  • Node agent

The maximum amount of address spaces is limited only by resources

Each server node is in a separate administrative domain. All nodes are in the same administrative domain.
You can start and stop servers independently. Each server has an independent, unshared JNDI namespace. You can start and stop servers independently, however the JNDI namespace is shared among all servers in the cell.
Multiple servants are allowed. Multiple servants are allowed.
Clustering is not available . Clustering is available.

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Timestamp icon Last updated: 21 June 2010


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