F5 VCMP Resource Allocation Sizing

Here you can find the formula to calculate memory depending on your host memory capacity: https://support.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/vcmp-viprion-configuration-11-4-1/2.html In short the formula is (total_GB_memory_per_blade - 3 GB) x (cores_per_slot_per_guest / total_cores_per_blade).

So if you are planning to provision 3 or more modules make sure you have at least 8 GB (oficially between 4 and 8 shoud be ok but better if you make 8)

If you need more details please ask. Hardware model is good information for this.