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 , 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.