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CMDBs: The Secret to High IT ROI

Sep 7, 2009 11:00:00 AM

Just what is a Configuration Management Database (CMDB)?

For starters, it’s not a database—or, rather, not merely a database. A CMDB is a virtual warehouse holding information from every nook and cranny of an information system. CMDBs show which system components are needed to create efficient business processes. It can be seen as both an encyclopedia of IT services and a DNA map of a business’ IT environment. It’s a decision support tool.

ITIL v2 defined a CMDB as “a database that contains all relevant details of each CI (configuration item) and details of the important relationships between CIs.” ITIL v3 now defines a CMDB as “a database used to store Configuration Records throughout their lifecycle. The Configuration Management System maintains one or more CMDBs, and each CMDB stores attributes of CIs, and relationships with other CIs.”

A product of the Information Technology Infrastructure Library (ITIL), CMDBs are important because they align technology with business process. An example of this? It’s common sense that without timely information, bad decisions can be made by the business unintentionally. ITIL-based CMDBs control workflows, and use a workflow to manage and collect process metrics and present them logically and accurately.

While there are many variations of CMDB workflows, five common high-level steps include:

  • Identification: To put it simply, “identifying” IT components and their inclusion in the CMDB.
  • Status: Recording of the status of all CIs in the CMDB, and keeping them updated.
  • Control: The management of CIs, indicating who is authorized to ‘change’ each one.
  • Status: Recording of the status of all CIs in the CMDB, and keeping them updated.
  • Verification: Reviewing data to make sure the CMDB is accurate and timely.

A properly implemented CMDB system can save an enterprise quite a bit of cash. There are, however, some direct overhead costs associated with the data capture process itself. The CMDB’s ROI will depend on the quality and reusability of the data it monitors, company size, and business strategy.

The CMDB bottom line: the more automated and consistent asset management methodologies become, the higher the ROI will climb. CMDBs allow businesses to become more efficient internally and more effective in their market.

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