text: Figure 6-55 Actions on MDisks 
  
  **Discover Storage**
  This option is available even if no MDisks are selected. By running it, you cause the system to 
  rescan the iSCSI and FC network for these purposes: 
  
  (cid:2) Find any new managed disks (MDisks) that might have been added. 
  (cid:2) Rebalance MDisk access across all available controller device ports. 
  
  This action executes the CLI command**detectmdisk**. 
  
  **Assign**
  This action is available only for unmanaged MDisks. Select**Assign**to open the dialog box 
  that is explained in “Assigning MDisks to pools” on page 232. 
  
  **Modify tier**
  Select**Modify Tier**to modify the tier to which the external MDisk is assigned, as shown in 
  Figure 6-56. This setting is adjustable because the system cannot always detect the tiers that 
  are associated with external storage automatically, unlike with internal arrays. 