This graphic shows a simple library with a Cartridge Module (left -1) and Base Module (0). The Cartridge Module has two partitions (partition 1 and Partition 2).

There are two modules that will be added to the configuration. A new Cartridge Module between the existing Cartridge Module and Base, and a new Drive Module to the right of the Base.

The new configuration is the old Cartridge Module now (left -2), new Cartridge Module ( left -1), Base (0), and Drive (right 1). With the new configuration the old Cartridge Module no longer has the proper partitioning. It has a new partition. The new Cartridge Module (left -1) now has the Partition 1 and Partition 2. The new Drive Module has a new partition.