on a very competent piece of HW - Dell PE R930. Loaded now and can be expanded further.
Have a HV Host 2012R2 - with 3 Guests all 2012R2 as well, one guest is Exchange 2013.
Goal is to bring all servers to OS Server 2019 & Exchange to Exch 2019.
looking for the safest way to do this as well as proper order. adding HW resources to physical server if in place upgrades are not suggested will not be an issue.
looking to takes bite of the elephant vs a no sleep big bang weekend.
appreciate advise and guidance you can provide.