When advanced pool settings are enabled, you can also select an extent size at creation  time, as shown in Figure 6-6. Note:  Do not create DRPs with small extent sizes. For more information, see this IBM  Support alert.  If an encryption license is installed and enabled, you also can select whether the storage  pool is encrypted, as shown in Figure 6-7. The encryption setting of a storage pool is  selected at creation time and cannot be changed later. By default, if encryption is enabled,  encryption is selected. For more information about encryption and encrypted storage  pools, see Chapter 12, “Encryption” on page 629. 3. Enter the name for the pool and click  Create .  Chapter 6. Storage pools  217 Figure 6-7 Creating a pool with Encryption enabled Figure 6-6 Creating a pool with advanced settings selected