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How FlexClone volumes save space
Understanding how FlexClone volumes save space enables you to maximize your storage efficiency. FlexClone volumes provide writeable volume copies that use only the space which is required to hold new data.
FlexClone volumes can be created instantaneously without interrupting access to the parent FlexVol volume. A FlexClone volume is initialized with a Snapshot copy and updated continually when data is written to the volume.
The following figure illustrates the space savings of test and development storage without and with FlexClone volumes.
For more information about FlexClone volumes, see the Data ONTAP Cluster-Mode Logical Storage Management Guide.

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