> 1) Do you centralize into 1 centralized site and back haul all > network logon and exchange traffic to 1 site?
I'd suggest different sites - the number of which is really dependent on how your physical topology is laid out. For instance, we've got 7 offices, connected by some fairly fat WAN links (with VPN and demand dial backup), but each physical localation is still a separate site. Generally, I do site design based on physical network design, with site boundaries aligned with the least reliable connections. However, there's no harm (and possibly some good) that can come from creating sites even within well connected, high bandwidth sites. It's a fairly detailed process based on expected traffic patterns and if you're doing things like site linked GPO's. > 2) What are the base numbers of DC's / GC's you would need > support this config (what are the metrics of dc gc > logons/server/processor) That's a very difficult question to accurately answer. Generally, I use two per "major" site - a site where I want all authentication to be local. Then again, the largest site I've got is 250 users, but my DC's aren't even working hard. With regards to Exchange, the typical recommendation is to use 1 DC/GC processor per 4 Exchange processors. I'd extend that to be plus an extra box for redundancy purposes. Roger -------------------------------------------------------------- Roger D. Seielstad - MTS MCSE MS-MVP Sr. Systems Administrator Inovis Inc. > -----Original Message----- > From: Murray Wall [mailto:[EMAIL PROTECTED] > Sent: Monday, June 07, 2004 10:40 PM > To: [EMAIL PROTECTED] > Subject: [ActiveDir] AD Design on a Highspeed Network considerations > > We are doing an AD site design and I wanted to know some > thoughts of the > group here. > Assumptions > 1) Single forest, Single Domain > 2) Highspeed Network links to sites, 10mb, 100mb and 1GB > Available for AD/exchange > 3) Centralized service provider/organization > 4) Exchange 2003 SP1 > 5) 16000 users in 16 sites with above network speeds > > Design Questions > 1) Do you centralize into 1 centralized site and back haul all > network logon and exchange traffic to 1 site? > 2) What are the base numbers of DC's / GC's you would need > support this config (what are the metrics of dc gc > logons/server/processor) > 3) what is the typical traffic usage used during an xp network > logon session? (DHCP, DNS, Kerberos TGT, and outlook 2002 mapi logon) > > Thoughts on pulling this off? > > Murray Wall, MCSE, B.Ed CCNA/DA Master ASE Messaging > [EMAIL PROTECTED] > 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/
