Sure. Keep in mind why GCs are needed. Native mode logons... UPN resolutions... Any script or application that calls out to a GC first to find something and then bind later to a DC. You don't have to worry where the infrastructure master is located. If you have a simple empty root with single child it is probably a good idea to make all DCs GCs as well. There is additional overhead on the root DCs but the overhead on the child DCs is minimal. However you probably have very few root dc's since it is a place holder or an administrative stronghold so it is a ok.
joe -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Gilbert, Daniel L Mr ANOSC/FCBS Sent: Friday, May 21, 2004 6:39 PM To: [EMAIL PROTECTED] Subject: RE: [ActiveDir] how many domain controllers ? I know this is off track but... Joe, if you only have a single domain do you get any benefit making them all GCs? Or any GCs? Dan -----Original Message----- From: joe [mailto:[EMAIL PROTECTED] Sent: Friday, May 21, 2004 6:34 AM To: [EMAIL PROTECTED] Subject: RE: [ActiveDir] how many domain controllers ? For production, never less than two. The max depends on your usage and your WAN configuration and network stability. If you have heavy usage due to apps like Exchange, you *may* need a couple of more. I think the calculation is one GC CPU per 2 Exchange CPUs or something like that? Though I am never a huge fan of just paper guessing, it may work for 80% of the places and you have one that doesn't fit that model. They don't know what else you are doing. If you have a WAN configuration with network connectivity that can drop (i.e. isn't guaranteed 100%) and you care about whether they work in a dropped state then you will need at least one per isolated location. If you have a single domain, make all DCs GCs. joe -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mike Maple Sent: Friday, May 21, 2004 6:28 AM To: [EMAIL PROTECTED] Subject: [ActiveDir] how many domain controllers ? Does anyone have a view about how many servers in a domain should be domain controllers. Should it be all of them - or only a few on each site ? Mike. List info : http://www.activedir.org/mail_list.htm List FAQ : http://www.activedir.org/list_faq.htm List archive: http://www.mail-archive.com/activedir%40mail.activedir.org/ List info : http://www.activedir.org/mail_list.htm List FAQ : http://www.activedir.org/list_faq.htm List archive: http://www.mail-archive.com/activedir%40mail.activedir.org/ List info : http://www.activedir.org/mail_list.htm List FAQ : http://www.activedir.org/list_faq.htm List archive: http://www.mail-archive.com/activedir%40mail.activedir.org/
