Which of the following is NOT a way to extend discovery?

The choice to adjust the database size for performance is not a method to extend Discovery within ServiceNow. Discovery extension typically focuses on enhancing the capabilities of the Discovery tool to gather more comprehensive data or to improve its functionality.

Creating probes allows for additional data collection, which enhances the depth of discovery by targeting specific data points that may not be covered by default configurations. Using classifiers helps in identifying and categorizing new applications, thus broadening the scope of what Discovery can recognize and manage. Implementing discovery patterns aids in parsing data more effectively, enabling the tool to handle diverse data formats and sources.

Adjusting the database size is primarily related to storage and performance considerations rather than the mechanism of extending functionality or capabilities in the context of Discovery. It's a routine management task necessary for performance optimization but does not enhance the discovery process itself. Therefore, it stands apart from the true methods of extending Discovery.