This design guide on networkcomputing.com states the following:
When uplinking to Nexus 5Ks, one topology option is to dual-home the physical Fabric Extender. Dual-homing a FEX provides path redundancy, but cuts in half the total number of Fabric Extenders you can deploy
In the following Cisco Data Sheet it states that "Maximum Fabric Extenders dual-homed to a vPC Cisco Nexus 5000 Series or Nexus 5500 Series switch pair" for a Nexus 5000 series switch is 12. It also states "Maximum Fabric Extenders per Cisco Nexus 5000 Series or Nexus 5500 Series switch" is the same, 12. This doesn't make sense according to the networkcomputing.com guide. Dual homed FEXs connected to Nexus 5000 vPC should be half the supported amount of a single-homed FEX design.
Let's say I have two Nexus 5000 series switches. They support a total of 24 FEXs if each FEX is dual homed. If I configure vPC on my 5000 series switches and dual home my FEX up to each switch, will I now only be able to connect 12 FEXs instead of 24 using these two switches?