Wow who wrote that article in the magazine? That is pretty bad. The end result is the same though as stated by everyone so far. If you have a single domain there is only slight overhead if you make all DCs into GCs. The only overhead I can really think of is that you will have more global catalog DNS records and all DCs are listening on an extra 1-2 ports... That is easily outweighed by the gain of having lots of GC availability.
Not sure what space usage you would incur by NOT doing it as indicated by the article. The whole IM role thing is pretty oddly described as well. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Za Vue Sent: Wednesday, December 14, 2005 10:09 AM To: [email protected] Subject: Re: [ActiveDir] Reducing number of Global Catalogs Below is a quote from the WindowsITPro magazine. " If you have just one domain, Microsoft recommends that you make all the domain controllers (DCs) GC servers so that your network won't incur any extra space usage or processing. In essence, the infrastructure Flexible Single Master Operation (FSMO) role still checks the GC for many operations. By making all DCs GC servers, you can spread the FSMO's request load to all DCs and prevent one DC from asking another DC for information that the first DC already has. Although the FSMO can't typically reside on a GC, you won't encounter any problems as long as only one domain exists because the FSMO won't need to keep track of any external domain objects." -Z.V. List info : http://www.activedir.org/List.aspx List FAQ : http://www.activedir.org/ListFAQ.aspx List archive: http://www.mail-archive.com/activedir%40mail.activedir.org/
