text: **Import**
  This action is available only for unmanaged MDisks. Importing an unmanaged MDisk allows 
  the user to preserve the data on the MDisk. You can migrate the data to a new volume or keep 
  the data on the external system. 
  
  MDisks are imported for storage migration. IBM Storwize V7000 provides a migration wizard 
  to help with this process. It is discussed in Chapter 9, “Storage migration” on page 385. 
  
  **Note:**The wizard is the preferred method to migrate data from legacy storage to the 
  Storwize V7000. When an MDisk presents as imported, the data on the original LU is not 
  modified. The system acts as a pass-through, and the extents of the imported MDisk do 
  not contribute to storage pools. 
  
  Select**Import**to choose one of the following migration methods: 
  
  (cid:2)**Import to temporary pool as image-mode volume**does not migrate data from the 
  source MDisk. It creates an*image-mode volume*that has a direct block-for-block 
  translation of the MDisk. The existing data is preserved on the external storage system, 
  but it is also accessible from the Storwize V7000 system. 
  
  In this method, the image-mode volume is created in a temporary migration pool and is 
  presented through the Storwize V7000. Choose the extent size of the temporary pool and 
  click**Import**, as shown in Figure 6-57 on page 236. 