Discovery
- Horizontal discovery of infrastructure and applications connected to TCP/IP networks.
- The tool is provided an IP address range and a set of credentials.
- Discovery will scan each IP address, identifying and classifying devices or hosts it receives responses from.
- For each discovered entity, discovery adds or updates Configuration Items (CI) to the CMDB (Configuration Management Database).
- Identifies dependencies between applications.
- Does not relate anything to business services.
- Approach is broad coverage.
Service Mapping
- Top-down discovery.
- Maps a business service.
- One or more entry points are provided.
- Service mapping only discovers infrastructure and apps that support a business service and maps their relationships.
- More precise approach.
- Once a business service has been mapped, service mapping does the following:
- Routine rediscoveries.
- Detects changes like the addition or removal of servers in clusters.
- Updated software.
- Changed configuration files.
- Service maps created by service mapping can be used for impact analysis in incident and change management.
- Service mapping uses discovery.
- If you want to monitor the availability status of a business service, event management is needed.