Nie muszę czytać. Snapshoty stosuję regularnie. Doczytaj dalej:
Managing a test database
In a testing environment, it can be useful when repeatedly running a test protocol for the database to contain identical data at the start of each round of testing. Before running the first round, an application developer or tester can create a database snapshot on the test database. After each test run, the database can be quickly returned to its prior state by reverting the database snapshot.