I manage hundreds of servers.
As crazy as it sounds, database servers, web servers, random application servers can be installed on the same server for years.
My IT team has been migrating old content, services, apps, etc. like crazy over the last few months. A lot of the stuff has been in production for several years and the nitty gritty details are no longer known.
The result is that we've been breaking stuff like mad.
I just want it to end.