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MDR-based reconciliation is performed at the management data repository, to reduce further the occurrence of multiple CIs in the MDB that refer to the same object in the physical world.
MDR-based reconciliation treats the MDR as a trusted source that always uses the same federated asset ID when it communicates information about a single CI. All updates from a given MDR to a given federated asset ID always update the same CI, even when identifying attributes are changed.
MDR-based reconciliation, reconciliation management, and the Transaction Work Area (TWA) described in these sections enable you to take control of the reconciliation process. However, to use reconciliation management and the TWA successfully, first understand how CA SDM uses reconciliation attributes.
Important: If you reinstall or reinitialize any external data provider (for example, CA Cohesion ACM), inactivate and reactivate its MDR definition in the CMDB. If the MDR reuses its federated asset IDs, inadvertent CI data overlay can occur.
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