> > ... give them the the RAM they need.> > And how much is that? That's my > > question. How much do they need? :)> > > Don't skimp with by provisioning > > 1GB of ram on an 08R2 server.> > Okay, so is 2 GB enough for a DC > > handling 120 PCs? 4 GB? :)
I have 3 DCs. 1 is physical, 2 are virtual. We use Hyper-V. The 1 physical DC has 2GB of ram, and we have 1000 PCs. The two virtual ones have 1194 MBs of ram, and a "BackupDC" which has 800 megs of ram. The BackupDC is slow to use, but seems to do the DC jobs just fine. These memory was chosen after carefully watching the usage and adjusting until we found what worked for us. YMMV. I'm sure Microsoft has a document about server sizing that directly addresses the memory requirements for a size of a domain somewhere, right? --Matt Ross Ephrata School District ----- Original Message ----- From: Ben Scott [mailto:[email protected]] To: NT System Admin Issues [mailto:[email protected]] Sent: Fri, 02 Dec 2011 13:32:39 -0800 Subject: Re: Virtualization - Sizing, hard disk config > On Fri, Dec 2, 2011 at 4:02 PM, N Parr <[email protected]> wrote: > > Plan your build to put every service on it's own VM ... > > I'm planning on putting each critical service set on its own VM. > But things like the anti-virus software, WSUS, things like that -- > they can reboot without impacting operation. Even BES can usually be > down for 10-15 minutes without anyone noticing. > > But each VM has costs associated with it, not just for hardware, but > management overhead, too. Dedicating a VM to a database used by two > people a few times a week, and which has a peak working set of 15 > megabytes, doesn't seem sensible. > > > ... give them the the RAM they need. > > And how much is that? That's my question. How much do they need? :) > > > Don't skimp with by provisioning 1GB of ram on an 08R2 server. > > Okay, so is 2 GB enough for a DC handling 120 PCs? 4 GB? :) > > > You've got to build out your infrastructure to allow for growth or > > you be back at the boss' door begging for more $$. > > Sure. Valid point. So let's say, for the DC, we double to 240 PCs, > 200 accounts, and a whopping 200 MB NTDS. Is that going to blow the 2 > GB DC out of the water, then? :) > > I *do* want to plan this correctly. But just "get enough RAM" isn't > a plan. :) > > -- Ben > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ > ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ > > --- > To manage subscriptions click here: > http://lyris.sunbelt-software.com/read/my_forums/ > or send an email to [email protected] > with the body: unsubscribe ntsysadmin > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin
