Examples of methods, systems, and computer-readable media for managing mainframe overhead during detection of sensitive information are described using multiple techniques. The techniques may include manipulating a scan definition, defining scan parameters and limitations, utilizing user-supplied scan filters, and using a redrive operation. The redrive operation may include halting one or more analysis requests associated with scan definitions, storing a redrive position for each analysis request, and resuming the servicing of analysis requests at the redrive position for each request.