Is putting ZCAs in availability set supported? are there any risks?
Unfortunately Zerto does not support putting ZCAs in an availability group.
Please let us know if you have any other questions.
In Zerto requirements for AWS it says: “There can be multiple ZCAs in a single AWS Availability Zone.” is that not true for Azure? if we have them in in an Availability Zone what are the risks? This setup has 2 ZCAs as there are around 70 VMs replicating to Azure.
Sorry, it appears I misunderstood your question.
You can have as many ZCAs in whatever regions (availability zones) you would like for both AWS and Azure.
There are no risks.