Dell Storage Manager 2020 R1 Administrator's Guide

About Snapshots

Snapshots enable you to capture volume data at a specific point in time without disrupting access to the volume.

A snapshot represents the contents of a volume at the time of creation. If needed, a volume can be restored from a snapshot.

Creating a snapshot does not prevent access to a volume, and the snapshot is instantly available to authorized iSCSI initiators. Similar to volumes, snapshots appear on the network as iSCSI targets, and can be set online and accessed by hosts with iSCSI initiators.

You can create a snapshot of a volume at the current time, or you can set up schedules to automatically create snapshots on a regular basis.

If you accidentally delete data, you can set a snapshot online and retrieve the data. If a volume is corrupted, you can restore the volume from a snapshot.