Define Db2 LUW Service Classes

You can use the Db2 for LUW Service Class Editor to create and define properties for Db2 LUW Service Classes.

Note: This topic applies to Db2 for LUW versions 9.5 and 9.7 only.

To define a Db2 LUW service class

Right-click a Service Class in the Model Explorer and select Properties.
The Db2 for LUW Service Class Editor opens.
Select a service class name and work with the following options:
Note: Click New on the toolbar to create a service class. Use the Enter filter text text box to filter a large list of names to locate the one you want to work with.
Name
Specifies the name of the service class.
Enabled
Specifies whether or not the selected service class is enabled.
Generate
Specifies whether or not to generate DDL for this object during Forward Engineering.
Click the General tab to work with the following properties:
Agent Priority
Specifies the value for thread priority of the agents in the service class, relative to the normal priority of Db2 threads.
Prefetch Priority Type
Specifies the prefetch priority of the agents in the service class. Select a value from the drop-down list; valid values are Default, High, Medium, and Low.
Outbound Correlator
Specifies the string used to associate threads from the service class with an operating system workload manager service class.
Bufferpool Priority Type
Specifies the bufferpool priority of pages fetched by activities in this service class. Select a value from the drop-down list; valid values are Default, High, Medium, or Low.
Collect Activity Data Type
Specifies the activity data type collected: None, Without Details, With Details, With Details and Values, With Details and Section, With Details and Section and Values.
Collect Aggregate Activity Data Type
Specifies the aggregate activity data type that the service class collects. Select a value from the drop-down list; valid values are None, Base, and Extended.
Collect Aggregate Request Data Type
Specifies the aggregate request data that the service class collects. Select a value from the drop-down list; valid values are None and Base.
Collect Request Metrics Type
Specifies that monitor metrics are collected for any request submitted by a connection that is associated with the specified service superclass. Valid values are None, Base, Extended.
Click the Histogram Template tab to work with the following histogram-related properties. Select a histogram from the drop-down list for:
Activity Lifetime Histogram Template
Specifies the template that describes the histogram used to collect statistical data about the duration, in microseconds, of Db2 activities running in the service class during a specific interval. Create or select from the drop-down list.
Activity Queue Histogram Template
Specifies the template that describes the histogram used to collect statistical data about the length of time, in microseconds, that Db2 activities running in the service class are queued during a specific interval.
Activity Execute Time Histogram Template
Specifies the template that describes the histogram used to collect statistical data about the length of time, in microseconds, that Db2 activities running in the service class are executing during a specific interval.
Request Execute Time Histogram Template
Specifies the template that describes the histogram used to collect statistical data about the length of time, in microseconds, that Db2 requests running in the service class are executing during a specific interval.
Activity Estimated Cost Histogram Template
Specifies the template that describes the histogram used to collect statistical data about the estimated cost, in timerons, of DML activities running in the service class.
Activity Inter Arrival Time Histogram Template
Specifies the template that describes the histogram used to collect statistical data about the length of time, in microseconds, between the arrival of one DML activity and the arrival of the next DML activity.
Click the Sub Service Classes tab and work with the following options:
Name
Specifies the name of the sub service class; this class is a child of the selected service class.
Enabled
Specifies whether or not the selected service class is enabled.
Generate
Specifies whether or not to generate DDL for this object during Forward Engineering.
(Optional) Click the Commenttab and enter any comments that you want to associate with the object.
(Optional) Click the Where Used tab to view where the object is used within the model.
(Optional) Click the UDPtab to work with user-defined properties for the object.
(Optional) Click the Notestab to view and edit user notes.
(Optional) Click the Extended Notes tab to view or edit user notes.
Click Close.
The Db2 for LUW Service Class Editor closes.

More Information:

Add a Comment in a Property Editor

Add a UDP in a Physical Property Editor