Provide reliable and current details about the IT infrastructure
- Maintain a logical model of the IT services.
- Identify, monitor, control and provide information about configuration items and their versions. In short, maintain a configuration management database (CMDB)
- Configuration Items (CI) are IT components or services that are recorded. These are stored in the Configuration Management Database (CMDB).
- Configuration Management Database (CMDB)
The Configuration Management Database (CMDB) contains CIs. Anything recorded in the CMDB must be controlled by the Change Management process. The CMDB contains
- Relationships of CIs to other CIs
- Authorized configuration of the infrastructure
- Status of IT components, location and changes that have been made
- The Asset Management database is not the CMDB. It can be used as the basis for the CMDB.
Configuration Management Activities
- Planning defines the objective, scope and priorities of the CMDB. This should be aligned to the business objectives.
- Identify the CIs to be stored in the CMDB. Items in the CMDB should go through the Change Management process. This process also defines the level of detail of a CI attribute. This also includes the actual recording of the item to the CMDB.
- Once the item is in the CMDB, each CI has a life cycle of its own. Changing the status could be due to a change or incident. Possible status are New, Existing or Archived.
- The control activity records changes to the CI status or its relationship to other CIs. Changes made in change management have to be updated in the CMDB.
- Regular verification and audits are recommended. This is to ensure that the CMDB is accurate. Ideally, audits should be conducted upon implementation, every 6 months, before and after every major change and after a disaster.