398 Implementing the IBM Storwize V7000 with IBM Spectrum Virtualize V8.2.1
Click Map Volumes and wait for the mappings to be created.
14.Select the storage pool that you want to migrate the imported volumes into. Ensure that 
the selected storage pool has enough space to accommodate the migrated volumes 
before you continue. This is an optional step. You can decide not to migrate to Storage 
pool and to leave the imported MDisk as an image-mode volume. This technique is not 
recommended because no volume mirroring are created. Therefore, no protection is 
available for the imported MDisk, and no data transfer occurs from the system to be 
migrated and the Storwize V7000. Click Next, as shown in Figure 9-13.
Figure 9-13   Select the pool to migrate the MDisk to
The migration starts. This task continues running in the background and uses the volume 
mirroring function to place a generic copy of the image-mode volumes in the selected 
storage pool. 
Note: With volume mirroring, the system creates two copies (Copy0 and Copy1) of a 
volume. Typically, Copy0 is located in the migration pool, and Copy1 is created in the 
target pool of the migration. When the host generates a write I/O on the volume, data is 
written at the same time on both copies. Read I/Os are performed on the preferred 
copy. 
In the background, a mirror synchronization of the two copies is performed and runs 
until the two copies are synchronized. The speed of this background synchronization 
can be changed in the volume properties.