Comment Re:Yes, it's called redundancy (Score 1) 107
In our case, about 20% of our servers are outdated and not kept as well maintained, as they used to host some important service, but their new replacement was built and that service was migrated, but nobody's 100% sure if there were any other latent, less important services running on that machine. So it stays on because everybody has more important things to do than find out what else is running on there, and perhaps more importantly, nobody wants to be the guy who shuts down the server that's still running some process someone relies on. So one or two servers of each type stays on, indefinitely, or until extended support finally ends. And yeah we have some physical redundant servers but for the most part everything is a VM now and we just have a one or two redundant VM hosts at our DR site. And an idle old server doesn't consume much of anything besides a gig or two of ram.