HP Instant Capacity User's Guide for versions B.07.x

Using Instant Capacity to Manage Processing Capacity
Unassigning a Cell from a Partition
Chapter 468
NOTE If your intent is to migrate a cell from one partition to another, you can
control the number of licensed processors available to the cell by
deactivating processors in the partition you removed the cell from. By
deactivating processors, you are essentially freeing up processor licenses
in the entire complex.