Use this task to enable multiple servants on your WebSphere Application
Server for z/OS system. Enabling multiple servants improves the performance
of WebSphere Application Server for z/OS.
About this task
Workload Management (WLM), enables you to manage the performance
and number of servants in WebSphere Application Server for z/OS. WLM manages
the response time and throughput of transactions according to their assigned
service class, the associated performance objectives, and the availability
of system resources. To meet these goals, WLM sometimes needs to control or
override the number of servants that are active. With this task, you can enable
WLM to start additional servants to meet performance goals.
Procedure
- In the administrative console, click Servers > Application servers
> server_name.
- Under Server Infrastructure, click Java and Process Management
> Server Instance.
- Select the Multiple instances enabled field.
- Click Apply to finish the Server Instance changes.
- Click OK and then click Save to save your configuration
changes.
Results
Workload Management (WLM) can start additional servant regions to
meet performance goals, based on the importance of its work compared to other
work in the system, the availability of system resources that are needed to
satisfy those objectives, and a determination by WLM of whether starting more
address spaces might help achieve the objectives. It is also important to
make the goals reasonable.