Guidance help for CSDM with Discovery and Service Mapping

[amul]

Hi All,

Is someone can help on step by step Guidance for CSDM with Discovery and Service Mapping how they used in CSDM. As a document in simple layman.

Thank you

Amulraj

[Mathew Hillyard]

Hi @amul 

They're complex products so a simple document won't give you much information.

In essence:

Discovery - supply ServiceNow IP address ranges and read-only credentials for your infrastructure (desktop, server, print, networking etc.) and it will conduct bottom-up or "basic" discovery of CIs and their open TCP connections. Application to application connections are not found. The end result is a basic CMDB with CIs identified and classified by class and their direct infrastructure connections. You set Discovery Schedules to periodically re-discover and update the CMDB.

Service Mapping - supply ServiceNow entry points to each service (often the URL to access the app service), and supply application credentials (app, database, storage etc.), and using patterns ServiceNow will conduct top-down discovery and build a map of the Application Service. This map needs to be reviewed and approved, then the service map as a whole will be discovered on whatever periodic basis you choose.

The key difference is that Service Mapping gives you (Application) Services, whereas Discovery just gives you an inventory of CIs and basic infra relationships.

For CSDM both of these reside within the "Manage Technical Services" domain. Once both are implemented you will have an inventory of CIs and Application Services. You still have to connect up (Business and Technical) Services and Service Offerings, and Business Applications. If you wish to map Technical Services as "buckets" of infrastructure then an additional step is to define the necessary Technical Services, Technical Service Offerings and Dynamic CI Groups with appropriate CMDB Queries (e.g. "New York Windows 2022 Servers").

I hope this helps!

Mat