Tag based Discovery

[Nisha30]

Hello ITOM Experts,

Need some Step by Step guidance.  Have gone through documentation and many threads.

Still confused , how tagged based Service Mapping to be implemented.

Q1. Is Basic discovery be done for CIs with Tags (key value etc.) (for non cloud and cloud both)

Q2. What exactly in sequence to be done for Tag based discovery.

Q3.  What has to be done to get List of CI to be available for 'View Service Candidates' ?

Pretty sure I am missing things but if anyone can help step by step (Product document did not get much out of which new to this Service Mapping piece)

Thanks

[Mannapuram]

@Nisha30 We did couple of tag-based Service mapping. Here are the details.

Step 1: All the CI's to be mapped had to be discovered first. For example, there is a Service for 'People soft'  for PRODUCTION environment and there are 3 servers running for it ( let's name: Server 1, Server 2 and Server 3).

Step 2: After these are discovered, make sure, their respective Key Values are also imported OR auto-populated. If you check with the application (Peoplesoft team), there are some tags mapped for every Server in in the infra (These are available readily for cloud based ones.) Here is an example: 

These values have to be brought into Servicenow cmdb_key_value.LIST table. 

Step3: CI Tag Categories need to be created. This is a kind of normalisation of the key values. In this example, anything with 'App', 'Application','Appl','AppName' will be considered as 'Application'.

Step 4: Create 'Tag based Service Families' With a meaningful name and add the above created CI Tag Categories to this family. 

 Step 5: Now the 'Manually update candidates' related link to be clicked. 

Step 6: There will be a pop-up window with the Service name as 'prd:peoplesoft'. It's the environment-application combination (families we selected in Step 4). 

Select that particular application by clicking on check box and then select 'Map selected' button.

Step 7: Click on OK 

Step 8: Now a new section named 'Mapped Services'  would show-up. click on the link 'View map'.

Step 9: A map would be loaded with only the entry point. Read the information message, which is asking to re-calculate the Service.

Click on the gear icon to go back to application. 

Step 10: Now, click on the 'Recalculate Service' related link.

Step 11: After the page refreshes, click on 'View Map' button. 

Step 12: You can see the application 'prd:peoplesoft' as the entry point and 3 Servers mapped underneath. 

Tag based mapping is easily understood as, considering each CI as JSON Object with various Key-value pairs in it. The map purpose is to connect these Objects. 

I can't write blogs, so made all the steps here. Do let me know if you are struck in any step.