LTM partitions

https://support.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/tmos_management_guide_10_0_0/tmos_partitions.html

Still applies for the main part.

Its a relatively simple task. The more difficult task is understanding WHY your business wants to use them and how effectively to use them. You may also want to look into use of Route Domains within individual partitions if you want to logically separate the traffic.