After Network Discovery finds a resource (network device, a subnet, a client computer, or even a domain), it will create a discovery data record (DDR) for it. The DDR will be processed by the SMS Discovery Data Manager thread component of SMS Executive and stored in the SMS site database. (DDRs older than 90 days are deleted from the site.) Figure 8.5 illustrates the Network Discovery data flow.
Figure 8.5 Network Discovery data flow