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The following l volume copy information is available: 

– Pool: The storage pool where the volume is located. 

– Capacity: The capacity of the volume and the capacity on each tier. If the volume is thin-provisioned or compressed, it also shows the real and the used capacity. 

– Capacity Savings: The capacity saving s type of the volume, which can be Thin-provisioned, Compressed, or None. 

– Virtualization type: The virtualization type of the volume. The value can be striped , seq , or image . 

– Copy status: The status of the volume copy. 

– Synchronization: The status of the copy synchronization process. 

– Encrypted: Whether the volume copy is encrypted. 

– Easy tier: The state of the Easy Tier. 

– Cache state: Whether open I/O requests are in the cache that is not destaged to the disks. 

3. To change the volume copy properties for the thin-provisioned or compressed volume copy type, select a volume copy from the Volumes window, and click Actions →  Modify Properties . Use the Modify Properties window (see Figure 8-54) to customize the thin-provisioning values: Warning Threshold and Enable Autoexpand. 

<img src='content_image/976036.jpg'>

4. Modify the values if needed and click OK . After the task completes, check the results of the operation and click Close to return to the Volumes window. 

## 8.5 Advanced volume copy functions 

In 8.3.1, “Advanced volume functions” on page 4 07, we described all of the available actions at a volume level and how to create a second volume copy. In this section, we focus on volumes that consist of two volume copies and how to apply the concept of two copies for business continuity and data migration. 

To access advanced volume copy functions, complete the following steps: 

1. Select the wanted volume for multiple copies. 

2. Click the twistie (>) to show all the copies. 

