Pure Storage Volume Snapshots API
Volume snapshots are immutable, point-in-time images of the contents of one or more volumes. There are two types of volume snapshots: volume snapshots and protection group volume snapshots. A volume snapshot is a snapshot that captures the contents of a single volume. A protection group volume snapshot is a volume snapshot that is created from a group of volumes that are part of the same protection group. All of the volume snapshots created from a protection group snapshot are point-in-time consistent with each other.