The OneAgent does not store any collected data locally on the managed host. Under normal conditions if a SG is down, the agent will automatically fail over to another accessible SG. Or if no SGs available, directly to the Dynatrace Server if accessible. In the event the Dynatrace Server is down, the agent stores a small amount of data in a local memory buffer, but soon data will simply be dropped on the floor. The design is intended to ensure that any communication failure of transactional data does not have any adverse impact on the monitored applications.