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Suggested CI relationships

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Suggested CI relationships

The system keeps a table of relationship types that are appropriate for a CI type, based on its class. You can view these relationships by navigating to Configuration > Suggested Relationships. You can also create additional suggested relationships.

Suggestion model

The relationship editor has a concept of a base CI, which designates the CI that a user was on before launching the editor, as the base CI in the new relationship. If you launched the relationship editor from the lnux100 CI, then lnux100 becomes the base CI. Also, every CI in the system has a type (class). For example, bond lnux100 is of the Linux server type.

Many CI types are children of other types in the hierarchy. For example, the class hierarchy for a Linux server is:

cmdb_ci -> cmdb_ci_computer -> cmdb_ci_server -> cmdb_ci_linux_server

When looking at a Linux server, the suggestion model works by analyzing the suggested relationship table for all relationships whose base class is the user's current base class or any one of its parent classes. For example, when looking at a Linux server, the suggestion model would retrieve any relationships whose base class was:

cmdb_ci_linux_server, cmdb_ci_server, cmdb_ci_computer, or cmdb_ci

Suggested CI relationships in the relationship editor

The CI relationship editor uses the suggestion model to help users select reasonable relationships for configuration items.

For example, consider these relationship types in the system:

  • Provides Power for :: Receives Power From
  • Runs on :: Hosts

A user may reasonably want to define the following relationship between two items as follows:

  • a database runs on a server
  • a rack provides power for a server

But neither of the following definitions would be appropriate:

  • a rack runs on a server
  • a server runs on a database