How is DCML different from the Common Information Model (CIM)? How does DCML work with CIM?
(CIM) is a Distributed Management Task Force (DMTF) standards effort for describing overall management information in a network/enterprise environment. CIM defines an abstract data model, method for instantiation in XML, and mappings to other management and information standards like SNMP and the Lightweight Directory Access Protocol (LDAP). CIM’s focus is on defining abstract models of managed objects to be used by monitoring and other traditional management systems. While CIM is quite comprehensive in this area and therefore overlaps somewhat with DCML, CIM is not well-suited to the data center automation problem that is DCML’s focus. DCML describes not just the state of an environment, but also how to construct the environment and the policies governing the management of that environment, neither of which CIM describes. Where CIM concepts and data elements can be mapped onto DCML for use with data center automation tools, DCML references CIM to avoid duplicating work.
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