How CMDB rules work explain with their order.

[Ratnakar7]

Hi @--oooo-- ,

CMDB rules are processed in the following order: identification rules, reconciliation rules, transformation rules, normalisation rules, association rules, and business rules.

Here's how CMDB rules work, in order of precedence:

1. Identification rules: These rules are used to identify CIs based on specific criteria such as hostname, IP address, or MAC address. When a new CI is discovered, it is compared against the identification rules in the CMDB. If a match is found, the CI is updated with the data from the CMDB. If no match is found, a new CI is created.

2. Reconciliation rules: These rules are used to match incoming data against existing CIs in the CMDB. Reconciliation rules are based on specific criteria such as hostname or serial number. When new data is received, it is compared against the reconciliation rules to determine if it matches an existing CI. If a match is found, the data is updated in the existing CI. If no match is found, a new CI is created.

3. Transformation rules: These rules are used to transform incoming data into a format that can be used by the CMDB. For example, you might use a transformation rule to convert a MAC address to a hostname. Transformation rules are applied after identification and reconciliation rules have been processed.

4. Normalisation rules: These rules are used to standardise the format of data in the CMDB. For example, you might use a normalisation rule to ensure that all hostnames are in uppercase format. Normalisation rules are applied after transformation rules have been processed.

5. Association rules: These rules are used to define the relationships between CIs in the CMDB. Association rules can be based on specific criteria such as IP address, hostname, or serial number. When a new CI is created or updated, association rules are used to determine its relationships with other CIs in the CMDB.

6. Business rules: These rules are used to enforce specific policies and procedures related to CIs in the CMDB. Business rules can be used to enforce naming conventions, data integrity, and other requirements. Business rules are applied after all other CMDB rules have been processed.

By defining and prioritising these rules, you can ensure that your CMDB is accurate, up-to-date, and consistent with your business policies and procedures.

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Thanks,

Ratnakar

[Saikrishna1998]

Thank you for this helpful information.

[Saikrishna1998]

Thankyou for the helpful information