we're upgrading our 2050 with a 2040, and migrating the 2050 to another site.
rather than removing the disks from the 2050's ds20 shelf (there's only 10 disks there now),
and inserting them into the 2040's shelf,-
can we insert the 2040 controller into the ds20 shelf in place of the 2050 controller?
in other words, can the 2050 shelf house a 2040 controller?