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Figure 5-2 shows the basic concept of a Thin-provisioned volume. 

<img src='content_image/969564.jpg'>

Also, you can see the different types of volumes in DRP described in Figure 5-3. 

<img src='content_image/969563.jpg'>

In standard pools, thin-provisioned volumes are created as a specific volume type that is based on capacity savings criteria. These properties are managed at the volume level. 

However, in DRP, all the benefits of thin-provisioning are available to all the volumes that are assigned to the pool. For the thin-provisioned volumes in DRP, you can configure compression and data deduplication on these volumes, increasing the capacity savings for the entire pool. 

You can enhance capacity efficiency for thin-provisioned volumes by monitoring the hosts use of capacity. When the host indicates that the capacity is no longer needed, the space is released and can be reclaimed by the DRP. It is redistributed automatically. Standard pools do not have these functions. 

Before describing the different volume types in detail, we will describe the concept of thin-provisioned volumes again. 

