CMDB module
Quick answer
The CMDB stores configuration items and their relationships. See the full CMDB lesson for depth.
Key takeaways
- Base class
- Relationships
- Data quality
The CMDB stores configuration items and their relationships. See the full CMDB lesson for depth.
Base class
Everything extends cmdb_ci. Specific classes (server, database, application) extend it.
Relationships
- Depends on :: Used by
- Runs on :: Runs
- Hosted on :: Hosts
- Contains :: Contained by
Data quality
- IRE prevents duplicates on every inbound source.
- CMDB Health scores completeness and staleness.
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Check your understanding
What base class do all CIs extend?
- A. cmdb_ci
- B. task
- C. sys_user
Show answer
A. cmdb_ci
cmdb_ci is the base configuration item class.
What prevents duplicate CIs?
- A. IRE
- B. A UI policy
- C. A report
Show answer
A. IRE
The Identification and Reconciliation Engine deduplicates inbound data.
Frequently asked questions
What does the term CMDB module refer to in ServiceNow?
The CMDB stores configuration items and their relationships. See the full CMDB lesson for depth.
What else is worth knowing about CMDB module?
IRE prevents duplicates on every inbound source. CMDB Health scores completeness and staleness.