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PowerStore can create point-in-time snapshots of one or more volumes. Snapshots are space-efficient because they consist of pointers to frozen data blocks and use redirect-on-write technology. They consume no extra space unless, for example, a thin clone is created from a snapshot, mapped to a host, and new data is written to the thin clone.
Snapshots can be created manually or automatically using snapshot rules within protection policies. For snapshot cleanup, a service runs hourly in the background in PowerStore and removes any expired snapshots.
Hosts cannot access snapshots unless a thin clone is created from the snapshot and presented to the host.