The following l volume copy information is available: 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: 2. Click the twistie (>) to show all the copies.  1. Select the wanted volume for multiple copies.  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. 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. – Cache state: Whether open I/O requests are in the cache that is not destaged to the  disks. – Easy tier: The state of the Easy Tier. – Encrypted: Whether the volume copy is encrypted. – Synchronization: The status of the copy synchronization process. – Copy status: The status of the volume copy. – Virtualization type: The virtualization type of the volume. The value can be  striped ,  seq , or  image . – Capacity Savings: The capacity saving s type of the volume, which can be  Thin-provisioned, Compressed, or None. – 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. – Pool: The storage pool where the volume is located. Figure 8-54 Modify volume copy properties 8.5 Advanced volume copy functions 422  Implementing the IBM Storwize V5000 Gen2 with IBM Spectrum Virtualize V8.2.1