Performing actions on volumes From the Volumes window, you can perform various tasks on the volumes. Click  Actions  to  access these operations (see Figure 7-81), or right-click the volume name, which opens a list  of tasks that you can perform on the volume. The properties of a volume that indicate the volume name, its capacity, and its sector size are  shown in Figure 7-82. Each volume features a unique ID (UID), which can be discovered from  the host side as a property of the logical unit. The volume that is shown in Figure 7-82 is not  yet mapped to a host. Figure 7-81 Actions of a single volume Figure 7-82 Properties of a volume A volume can be expanded while it is online, which maintains full functionality to the  connected hosts. Because not all operating systems allow concurrent expansion of their  disks, precautions must be taken so that the operating system supports dynamic volume  expansion. An alternative to expanding the disk is to create an additional disk and map it to  the host. Attention:  FlashSystem 900 volumes support a maximum of eight extents. This means  that you can expand a volume up to seven times. 232  Implementing IBM FlashSystem 900 Model AE3