Last I heard, it's not recommended to have Exchange on a DC. However, if you already do, don't just demote the server. You have to uninstall Exchange from that box first, or you'll get into a very difficult situation....isn't that right Don? Joe Heaton
________________________________ From: Dennis Rogov [mailto:[EMAIL PROTECTED] Sent: Tuesday, March 25, 2008 10:49 AM To: MS-Exchange Admin Issues Subject: Cluster Server Hi All I have two questions: Is there any issue to have your exchange 03 server be a domain controller and a global catalog at the same time? I am looking to purchase a new additional server Exchange 03 server to make a cluster for instant failover in case the main mail server goes offline. What are my options? Dennis Rogov Senior Network Analyst THE Peer GROUP an informed medical communications company 379 thornall street, 12th floor | edison, nj 08837 usa Direct: 732-205-8376 | fax: 732.321.0636 |Cell:732.861.2277 [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> www.peergroupinc.com <http://www.peergroupinc.com> [This e-mail and any attachments thereto, is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. No confidentiality or privilege is waived or lost by any mistransmission. If you are not the intended recipient of this e-mail, you are hereby notified any dissemination, distribution or copying of this email, and any attachments thereto, is strictly prohibited. If you receive this email in error please immediately notify me at (732) 205-8376 and permanently delete the original copy and any copy of any e-mail, and any printout thereof. ] ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ ~ http://www.sunbeltsoftware.com/Ninja ~