Failing over Virtual F5 VE to DR location using Zerto

I don't know Zerto but I would suggest to eiter setup a HA-pair if it's possible with Zerto, but that requirse the stand-by (Zerto-node) to be always available. 

Otherwise I would suggest either 1 of the following ways:

1. Make sure you take regular UCS back-ups and stores those on a safe place so you can restore a VE in Zerto and then load the UCS file there, but than your entire network needs to be running in Zerto of course (same IPs, same backend et cetera).
   
   
2. Go all in with automation using the F5 Automation stack with Declarative Onboarding and AS3: with DO you can have the configuration for the DR VE deploy once you start deploying the VE. For all application services you'll then deploy them with AS3 to the device. All changes will then need to be handled to AS3, keeping the same declearations for both Main and DR loadbalancer (or seperate ones if you need different IP-addressing in DR). 

Please note that the two methods (other than HA) will give downtime during a DR scenario, since you'll need to spin everything up.