GTM Question

You don’t need 2 boxes for GTM to work. But it depends on the architecture, and how it was designed. You can have GTMs in failover for High Availability (active/standby) in a DC. You can also have a GTM per datacentre running in a sync group.

 

 

But you can have a single GTM box, offsite from your datacentres, that can do the GSLB between your datacentres.