 Hi and welcome to this video tutorial on how to create an arithmetic expression in Petropark composite attributes. Login to a true set console and go to the infrastructure policies and their configuration tab. Enter the policy name, agent post name and enable the policy. It is required to have a KM configured before using the composite KM. I am using Oracle KM to compose an arithmetic expression. In order to use attributes of ETSM monitor type, the Oracle database should be configured. Here are the details of the configured Oracle database. Now click on add monitor configuration to configure the policy. Now select ETSM monitor profile from Oracle database. Select monitoring solution and monitor profile as composite attributes and monitor type as composite agent level. Specify the full path of the JRE directory on the pattern legend server. If the specified path does not exist or if the field is left blank, the KM searches for the JRE in the atl home directory. If you want, you can specify the JVM arguments. To create composite instances, click on the add tab. Specify the unique label name for the composite instance. Specify the attribute name that is used to represent the composite attributes in the true set console. Select the expression type as arithmetic. The attributes used space and space left from ETSM monitor type are used to create an arithmetic expression. Click on add to add source attributes. Specify the attribute path variable name which is a user defined name. It is an alpha numeric field, special characters and blank spaces are not alone. Specify the existing monitor attribute path that will be assigned to the attribute path variable. Here we are specifying the path. The path should be specified in this format. Application class, application instance, parameter. If you go to the true set console under agent actions, you can see two menu commands. Get monitor details and get all monitor details. By using these menu commands, you can find the path of the attributes. Add one more attribute to the list by clicking on the add. Specify the attribute path variable name and the attribute path. Enter the arithmetic expression using variables mentioned in the source attribute list. Specify the polling interval. By default the instances will be created under composite container. If you want to create a composite instance at a different parent, specify the existing instance name that is used as a parent for the created logical instance. Save the policy. Now go to the devices under the monitoring tab. Here you can see the result of arithmetic expression. Thank you for watching this video. For more details, log on to docs.bmc.com.