quick gtm and ssl question

sorry if this is a very basic question, but i'm new to gtm

 

 

do you need a seperate ssl certificate for each virtual server on seperate ltm's even if they're for the same domain?

 

 

i.e.

 

we have our primary ssl web site in location A

 

we have a failover ssl web site (which is the same) in location B

 

 

do we require 2 seperate certificates?

 

 

i guess the answer is yes, as you generate a csr on ltm which is bound to that unit, but i would be very grateful if someone could confirm?

 

 

thank you