Hello nd welcome to the forum,
The people who have the permissions and the knowledge about migration and management classes are the storage management people for your system. The information is quite site-specific and (unless they suport your system) no one at the forum knows your setup.
I have only TSO access (no TMS) as I do not belong to DBA team of my organizations.
This is NOT something usually considered a DBA responsibility, thought DBAs tend to have more permissions that application developers.
You need to work with your storage management people.