Note:  If insufficient extents are available within your target storage pool, you receive an  error message. Ensure that the source MDisk group and target MDisk group have the  same extent size. You can use the optional threads parameter to control priority of the migration process. The  default is  4 , which is the highest priority setting. However, if you want the process to take a  lower priority over other types of I/O, you can specify  3 ,  2 , or  1 . You can run the  lsmigrate  command at any time to see the status of the migration process,  as shown in Example 7-30. Example 7-30 The lsmigrate command IBM_2145:ITSO_CLUSTER:superuser>lsmigrate migrate_type MDisk_Group_Migration progress 0 migrate_source_vdisk_index 27 migrate_target_mdisk_grp 2 max_thread_count 4 migrate_source_vdisk_copy_id 0 IBM_2145:ITSO_CLUSTER:superuser>lsmigrate migrate_type MDisk_Group_Migration progress 76 migrate_source_vdisk_index 27 migrate_target_mdisk_grp 2 max_thread_count 4 migrate_source_vdisk_copy_id 0 Progress:  The progress is shown in terms of percentage complete. If no output is  displayed when running the command, all volume migrations finished. Migrating a fully managed volume to an image mode volume enables the IBM Spectrum  Virtualize system to be removed from the data path. This feature might be useful when the  IBM Spectrum Virtualize system is used as a data mover. To migrate a fully managed volume to an image mode volume, the following rules apply: GLYPH<SM590000> If the migration is interrupted by a system recovery or cache problem, the migration  resumes after the recovery completes . GLYPH<SM590000> Regardless of the mode in which the volume starts, it is reported as a managed mode  during the migration. GLYPH<SM590000> The MDisk that is specified as the target must be in an unmanaged state. GLYPH<SM590000> The destination MDisk must be greater than or equal to the size of the volume. GLYPH<SM590000> Cloud snapshots must not be enabled on the source volume. 7.8.17 Migrating a fully managed volume to an image mode volume Chapter 7. Volumes  309