In the legacy environment, our SQL server instances all ran on 2 machines. This included all versions up to 2014 on SQLA and then any version from SQL2014 and up also on SQLB. This created a small issue where sometimes the databases on one version wouldn't compress and clear logs accurately leading to space issues that we have all experienced. To help reduce and alleviate this issue, we are moving the different SQL instances onto their own machine. These can easily be identified by the new SQL Machine names and also by their IP Addresses which have been setup.
For example 2019-SQL2016-1 indicates that the SQL2016 instance lives there. Also all SQL version are represented in their IP Addresses. Our new network is 10.100.x.x and you can break the year up into 20.16 to get the last part of the IP Address.
We have installed all versions of SQL from 2008 to 2019 in the new environment.
Please note that at the time being, permissions and network communications are only working on the SQL2016 instance, the others will be setup as site migrations require it.