IBM Midrange System DS4000 Series Hardware Manual page 404

A successful import operation finishes with the Storage Manager recognizing the disks in a
Optimal status, as well as the array and the logical drives as they were in the source DS
Storage Subsystem. See Figure 7-47.
Figure 7-47 Finish import operation
A last step to perform before using the disks is to create the desired mappings. Once done,
you will be able to access the migrated data, thus completing a successful migration.
386
IBM Midrange System Storage Hardware Guide