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    A service model that is distributed across two or more Infrastructure Management Servers is called a distributed service model. When the number of CIs in a service model exceeds the maximum limit of CIs allowed in a single server, it is possible to distribute the model across multiple Infrastructure Management Servers. When creating a distributed service model, relationships must not span back and forth frequently across multiple servers (cells). An inappropriate model might deteriorate the performance of Infrastructure Management. The number of relationships spanning across multiple Infrastructure Management Servers must be kept to a minimum. A model must be present completely on a single Infrastructure Management Server as much as possible. For information about sizing the Infrastructure Management environment, see Sizing charts and guidelines for event and impact management .

    Best practice

    BMC recommends using a discrete model over a distributed service model. Distributed service models must be created only in scenarios where it is not possible to have the complete service model on a single Infrastructure Management Server.

    Infrastructure Management Server with a single service impact management cell

    • Each Infrastructure Management Server hosts parts of the service model or distinct service models.
    • The impact management cells communicate with one another.
    • Service models on the Infrastructure Management Servers display CIs from one Infrastructure Management Server.
    • The Central Server displays all CIs across Infrastructure Management Servers.

    Multiple Infrastructure Management Servers with service impact management cells

    • The Central Server hosts the service model(s) with CIs physically residing on the Infrastructure Management Servers.
    • The Infrastructure Management Servers are linked with the Central Server through Infrastructure Management Web Services. For information on how to configure a Central Server, see Configuring a Central Server .

    Cross-launching to the Infrastructure Management Server and viewing the details in the Notebook pane

    The Notebook pane seamlessly displays details of the remote CIs. The Related CIs pane allows you to identity causal CIs and launch to the respective Infrastructure Management Server.

    Related topics

    Infrastructure Management deployment with BMC Atrium CMDB

    Creating discrete and distributed service models

    Use cases for centralized service models