I am upgrading CRM 2011 to CRM 2013 for two organizations (CRMTEST and CRMPROD). The plan is to upgrade each org to newer CRM versions to get to Dynamics 365 (so CRM 2011 to CRM 2013 to CRM 2015 to CRM 2016 to Dynamics 365)
My question is: we have built one CRM server to Dynamics 365 specs and one SQL Server built to Dynamics 365 requirements. Is it recommended to have separate servers for the CRMTEST org and CRMPROD org? Given our current VMs, we would need to upgrade to a single set of servers, with CRMTEST and CRMPROD on the same Dynamics 365 servers.
The current CRM 2011 environments have separate servers for CRMTEST and CRMPROD. What could be the problems with both TEST and PROD on the same servers? For example, could this cause issues with refreshing CRMTEST with CRMPROD?