Software-Defined Data Center (SDDC) An SDDC (software-defined data center) is a data storage facility in which all infrastructure elements -- networking, storage, CPU and security -- are virtualized and delivered as a service. Deployment, operation, provisioning and configuration are abstracted from hardware. Those tasks are implemented through software intelligence. Former VMware CTO Steve Herrod is widely credited with coining the term around 2012. An SDDC is currently more of a concept ...