I agree with what Mike said. CMDB and AMDB are closely related. In addition:
I had created this asset management vs config management slide notes for my reference, so sharing here.
A few important points to note:
- Asset management is geared towards Financial aspects, that is making sure that cost is correctly mapped to business units, license compliance is achieved and assets stay within warranty
- Config management is geared towards Operation aspects, that is making sure that outages are minimum and ITSM processes like incident management or change management are followed properly (by the availability of correct CIs in the CMDB)
- Different attributes are important for asset vs config as shown here
- Asset lifecycle is static, that is once an asset is procured it does not go through a lot of changes before it is decommissioned while CI lifecycle is dynamic, as an example OS, Memory and CPU of a CI can change overtime.
- please note the tables in which asset and config information is stored - alm_asset and CMDB_ci. These two tables are kept in sync using business rules
- Further: The system property glide.create_alm_asset.async controls whether assets are created immediately when a configuration item (CI) is created, or are created after a delay. A delay in asset creation allows large numbers of CIs to be created quickly. When this property is set to true, assets are created by the Asset - Create asset delayed sync scheduled job that runs every 15 minutes. View the status of the scheduled job in the Asset Job Log table [asset_job_log]. To view assets waiting to be created and asset creation errors, navigate to Asset > Administration > Asset Creation Queue. To reprocess an error, update the state from Error to Ready. The next time the scheduled job runs, it reattempts to create the asset.
When the glide.create_alm_asset.async property is set to false, assets are created immediately from CIs.
- Similarly: The system property glide.asset.create_ci_with_ire enables CIs to be created from assets using the ServiceNow® Configuration Management Database (CMDB) Identification and Reconciliation engine (IRE). This property affects CI classes that have an identification rule on serial number and have no dependent relationships with other CI classes
- Model categories associate CI classes with asset classes. Model categories are part of the Product Catalog application.
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