Figure 6-31 Upgrading a drive or a set of drives Figure 6-32 List of volumes dependent on disks 7, 8, 9 For information about updating drive firmware, see Chapter 13, “RAS, monitoring, and  troubleshooting” on page 673. Select  Show Dependent Volumes  to list the volumes that are dependent on the selected  drive. A volume is dependent on a drive or a set of drives when removal or failure of that drive  or set of drives causes the volume to become unavailable. Use this option before you do  maintenance operations, to confirm which volumes will be affected. Figure 6-32 shows the list of volumes dependent on a set of three drives that belong to the  same MDisk. This configuration means that all listed volumes will go offline if all selected  drives go offline. If only one drive goes offline, there is no volume dependency. Action: Show dependent volumes Chapter 6. Storage pools  213