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ITOM deep-dive · LessonBy , ServiceNow Architect · Published · ServiceNow · all levels

Cloud discovery

Discover cloud resources, map them to CI classes and keep costs and tags aligned.

Quick answer

Discover cloud resources, map them to CI classes and keep costs and tags aligned.

Key takeaways
  • Cloud discovery uses provider APIs, not network probes
  • Scope regions and services deliberately
  • Tags carry ownership and cost context into the CMDB
  • Untagged resources are a governance problem, not a discovery bug

How it differs

Cloud discovery calls provider APIs rather than probing IP ranges. You register a service account per account or subscription, pick the regions and services, and the platform creates logical datacenter, virtual machine and storage CIs.

Scheduling and scope

Cloud estates change constantly, so schedule discovery more frequently than on premise scans but scope it. Discovering every region when you use three is a common and expensive mistake.

Tags matter

Cloud CIs carry tags that carry your business context.

  • Map owner, environment and cost centre tags into CI fields
  • Use tags to drive service mapping and to attribute cost
  • Enforce tagging at provisioning, the CMDB cannot invent missing context
  • Report on untagged resources, that list is usually the real cleanup backlog

Practice challenge

+0 XPStreak ×0
Question 1 of 2
What replaces IP range scanning in cloud discovery?

Frequently asked questions

Do we still need a MID server?
Yes for most patterns, and the MID needs outbound access to the provider endpoints. Some configurations support direct calls, but the MID is the common route.
How do we avoid duplicates with on premise discovery?
Identification rules distinguish cloud instances by provider identifiers. Confirm those rules before running both against hybrid workloads.
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