Snapshot
Snapshot technology refers to the creation of a point-in-time copy or capture of the state of a system, dataset, or storage volume, preserving its exact condition at a specific moment. It is widely used in data management, version control, and system recovery to enable efficient backups, rollbacks, and data consistency without duplicating entire datasets. This concept is implemented across various domains, including databases, virtual machines, file systems, and development workflows.
Developers should learn and use snapshot technology when working with systems that require reliable data recovery, versioning, or testing environments, such as in database management to create consistent backups without downtime, or in DevOps for capturing application states before deployments. It is essential for ensuring data integrity in distributed systems, facilitating disaster recovery, and enabling efficient rollback mechanisms in case of errors or failures during updates.