Configuring workload biasing

The bias parameter defines how the Workload Manager distributes program requests to server groups or individual servers.

BIAS=<string>
Description
Define a program name; the server group or server that the program requests can be sent to; and the bias value. A bias parameter is required for each program that is to be workload balanced and defines how program requests are distributed between server groups. The value of the string must match the following format:
<program>;<server group 1>:<bias value>;<server>:<bias value>;<server group 2>:<bias value>;...
If you are using the Round robin algorithm, specify a bias value of 0. For more information about bias values, see The biasing algorithm. If a server is not in a server group, you can specify the server name in place of a server group name, for example:
BIAS=program1;servergroup1:1;servergroup2:3;
BIAS=program2;servergroup1:1;servergroup3:1;servergroup4:1; 

This parameter is in the LOADMANAGER section of the configuration file.

Configuration Tool
In the Configuration Tool, you can set the value of BIAS in the Program definition for managing workload page. This page can be accessed by selecting an existing program in the Programs section of the CICS Transaction Gateway pane or by creating a program definition.
To create a program definition you can click Options > New Program Definition, click the New Program Definition icon, or click the New Program Definition button on the Server Groups page. You are then prompted to enter a program name. This name must be 1 - 8 characters in length.
To add server groups or servers to the list of servers used for biasing, select the server group or server in the Servers not used for biasing list and click <<. The server group or server is added to the Servers used for biasing. To remove a server group or server from the group, select the server group or server in the Servers used for biasing list and click the >> button. The server group or server is added to the Servers not used for biasing.
Set the bias value by clicking the Bias value field for a particular server, and then enter a number. The ratio field automatically updates. This field describes the ratio of the distribution of program requests between the servers in the Servers used for biasing list.

Reference Reference

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Timestamp icon Last updated: Tuesday, 19 November 2013


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