I agree with Jim O's comments. There are things, and DNS and DHCP are two of them that are extremely critical to getting a data center going again. If you've been lucky enough to never hear the most terrifying sound in a data center 'the Sound of Silence' (no not Simon and Garfunkel!) then you might not see how much of a deterrent it is to have to get your VM environment running just to get those key services running.

I HAVE been in this situation and it's not pretty and one was just this past month. I was in another DC when an loud noise came from the UPS, then silence, then one guy in the corner said loudly what we were all thinking: "****!" (Pick your own FLW)

I also know of a global company who's primary data center infrastucture failed on the friday of a holiday weekend. By Tuesday the primary center was back on line but at the backup site the only thing they managed to get going in 4 days was DNS. I don't want to have to get 4 days in to have DNS!

- DrF

On 10/13/2021 10:57 AM, Rob Berendt wrote:
Jim,
We used to follow the dogma that things like DNS servers, etc should have their own hardware but we're backing away from that. Why use a 1U server when you can just make it a virtual server on your vmware server? This allows snapshots, etc. And you can always set up a redundant on a different vm server.
Why complicate the save/restore with dedicated hardware?

Rob Berendt



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