I'm curious why not. The more I think about it, the more it seems like a good idea.
1. It completely negates the issue of virtualizing a DC or having a separate physical DC 2. Second, a potential problem with running services on the host is that it could starve the guests for resources, but if any service NEEDS resources, what better than AD? 3. If you have virtualized DCs, the hosts should be the most protected servers in your environment since a compromise there can easily lead to a compromise of any guest - including a DC. So, if that host is already well protected, since it is in fact as critical as a DC, why not run AD on it? One possible reason against running extra services on the host is he possibility for needing more reboots due to patching, but it should be a fairly insignificant difference, especially if running Server Core. From: Sean Rector [mailto:sean.rec...@vaopera.org] Sent: Thursday, August 25, 2011 8:27 AM To: NT System Admin Issues Subject: RE: [Microsoft support] Is it me... I thought it was a no-no. Sean Rector, MCSE From: Brian Desmond [mailto:br...@briandesmond.com]<mailto:[mailto:br...@briandesmond.com]> Sent: Wednesday, August 24, 2011 6:11 PM To: NT System Admin Issues Subject: RE: [Microsoft support] Is it me... Right - I'm missing what's not best practice about it. Thanks, Brian Desmond br...@briandesmond.com<mailto:br...@briandesmond.com> c - 312.731.3132 From: Sean Rector [mailto:sean.rec...@vaopera.org]<mailto:[mailto:sean.rec...@vaopera.org]> Sent: Wednesday, August 24, 2011 1:33 PM To: NT System Admin Issues Subject: RE: [Microsoft support] Is it me... In my environment - nothing. It's working like a champ. Sean Rector, MCSE From: Brian Desmond [mailto:br...@briandesmond.com]<mailto:[mailto:br...@briandesmond.com]> Sent: Wednesday, August 24, 2011 1:29 PM To: NT System Admin Issues Subject: RE: [Microsoft support] Is it me... What's wrong with that? Thanks, Brian Desmond br...@briandesmond.com<mailto:br...@briandesmond.com> c - 312.731.3132 From: Sean Rector [mailto:sean.rec...@vaopera.org]<mailto:[mailto:sean.rec...@vaopera.org]> Sent: Wednesday, August 24, 2011 6:14 AM To: NT System Admin Issues Subject: RE: [Microsoft support] Is it me... I know I'm not following best practice, but my Hyper-V hosts are running Datacenter Ed. and are my DCs. Sean Rector, MCSE Information Technology Manager Virginia Opera Association E-Mail: sean.rec...@vaopera.org<mailto:sean.rec...@vaopera.org> Phone: (757) 213-4548 (direct line) ________________________________ From: Michael B. Smith [mailto:mich...@smithcons.com]<mailto:[mailto:mich...@smithcons.com]> Sent: Tue 8/23/2011 7:29 PM To: NT System Admin Issues Subject: RE: [Microsoft support] Is it me... If you are down, you call them and tell them you are down and that it is a "business critical" event. I don't know what the fee for that is, but you are supposed to get a callback in 30 minutes 24x7x365. Regards, Michael B. Smith Consultant and Exchange MVP http://TheEssentialExchange.com From: David Lum [mailto:david....@nwea.org]<mailto:[mailto:david....@nwea.org]> Sent: Tuesday, August 23, 2011 7:20 PM To: NT System Admin Issues Subject: [Microsoft support] Is it me... ..or is there no 24x7 pay per incident number for support on Microsoft Servers? I keep getting to this page (2008 R2) and choosing "Virtualization" and "Other" I get support times of 6a-6pm. https://support.microsoft.com/oas/default.aspx?st=1&as=1&iid=1059&iguid=d535992c-b4dd-49a7-b4a8-2b14e5649525_1_1&x=10&y=17&c1=508&sd=gn&c=SMC&ln=en-us&prid=13020&gsaid=582847 I had a situation the other night where I thought I was going to have to call them because I uh...have a Hyper-V host that's a domain member and it was requiring connection to a DC to start a guest VM, and the guest VM was the DC it needed to talk to! Invoking some DR steps I got back in business, but still...do you need to have some kind of support contract to have them available 24x7? 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