The use that can be assigned depends on the current drive use. These dependencies are  shown in Figure 6-43. Note:  To start configuring arrays in a new system, all  Unused  drives must be configured as  Candidates . Initial setup or Assign storage GUI wizards create this configuration  automatically. Several actions can be performed on internal drives. To perform any action, select one or  more drives and right-click the selection, as shown in Figure 6-44. Alternatively, select the  drives and click  Actions .  The actions that are available depend on the status of the drive or drives selected. Some  actions can be run on a set of them only, and some are possible only for individual drives. This action is only available if the selected drive has an error event associated with it.  Selecting  Fix Error  starts the Directed Maintenance Procedure (DMP) for the selected drive.  For more information about DMPs, see Chapter 13, “Reliability, av ailability, and serviceability,  and monitoring and troubleshooting” on page 705. 244  Implementing the IBM System Storage SAN Volume Controller with IBM Spectrum Virtualize V8.2.1 Action: Fix error Figure 6-43 Allowed usage changes for internal drives Figure 6-44 Actions on internal storage