So...I would probably do a six-server deployment of Exchange itself: 2 CAS, 2 HT, 2 MBX (one primary DAG and a secondary DAG). All of these are inside the firewall. In Exchange 2010 you only need ports 443 (for OWA, ActiveSync, Autodiscover, and Exchange Web Services), 587 (client SMTP submissions if you authorize them), and 25 (SMTP from your hygiene appliance) incoming. You need to model your IOPS need from your netapp using the Mailbox Calculator (get the most recent one from msexchangeteam.com for Exchange 2010).
Those mailbox servers are going to need to be pretty hefty, I'd recommend 64 GB RAM, with 48 GB being the minimum. 12 cores. Plus whatever disk the mailbox calculator says you need. For the CAS and HT, eh, 4-8 cores, 12-16 GB RAM, and for the HT put the mail.que DB on a separate raid-1 from the OS. Before we can actually talk about OCS - you need to decide if it's going to be "internal only" and whether or not you want UM integration with Exchange. OCS 2007 R2 has a bunch of piece-parts. These are all SWAGs, but based on your stated volume, I'd say it's pretty close. Regards, Michael B. Smith Consultant and Exchange MVP http://TheEssentialExchange.com -----Original Message----- From: Ellis, John P. [mailto:[email protected]] Sent: Wednesday, March 03, 2010 10:42 AM To: MS-Exchange Admin Issues Subject: RE: Exchange 2007 & 2010 servers We use Netbackup and the backups are currently done to a NetApp box. Some are cache mode (don't know how many). The majority are online mode OCS has not been finalised yet, I suspect it will mostly be internal usage Whats MOC? John -----Original Message----- From: Michael B. Smith [mailto:[email protected]] Sent: 03 March 2010 15:37 To: MS-Exchange Admin Issues Subject: RE: Exchange 2007 & 2010 servers How do you do backup? Are all of your users using Outlook? Are they cached mode or online mode? In regards to OCS, are you going to be federating with external organizations and/or allowing OCS access from the Internet? Are all users going to have MOC deployed to their desktops? Regards, Michael B. Smith Consultant and Exchange MVP http://TheEssentialExchange.com -----Original Message----- From: Ellis, John P. [mailto:[email protected]] Sent: Wednesday, March 03, 2010 10:33 AM To: MS-Exchange Admin Issues Subject: RE: Exchange 2007 & 2010 servers Apologies for not giving load info. Inbound from outside, we process around 417,000 emails over a period of 30days, about 3.1gb Outbound we process around 6500 messages or 5.4gb Internally around 755389 messages Each server has 4 stores, Small 0 - 150mb Medium 150 - 250mb Large 250mb - 600mb Some mailboxes are over 1gb. Max size is about 2.2gb Coucillors 50 - 2gb We have hygiene scanning in the DMZ from a 3rd party app. We also have EAS From Zantaz for email archiving. This does a copy every night and archives emails older than 60days. Deletes any older than 12months old. HTH John -----Original Message----- From: Michael B. Smith [mailto:[email protected]] Sent: 03 March 2010 12:08 To: MS-Exchange Admin Issues Subject: RE: Exchange 2007 & 2010 servers What's the load on the existing servers? Without that information; it's pretty difficult to answer your question. You can easily put 4500 users on a single mailbox server in Exchange 2007/2010. (Of course, you'll want a failover box too.) Regards, Michael B. Smith Consultant and Exchange MVP http://TheEssentialExchange.com -----Original Message----- From: Ellis, John P. [mailto:[email protected]] Sent: Wednesday, March 03, 2010 6:45 AM To: MS-Exchange Admin Issues Subject: Exchange 2007 & 2010 servers Currently on Exchange 2003 we have 4 servers, 3 active 1 passive all on hardware with 4500 users We have 2 servers in the DMZ for webmail and 2 internal servers for webmail, again all hardware based Trying to get my head around whats needed for Exchange 2007 & 2010 Ex2k7 with OCS 2 x Edge servers in DMZ for webmail ? Maybe 2 hub servers? Maybe 2 CAS servers? And say 3 email servers? What about 2010 with OCS/UMS Is there still 2 servers in the DMZ(Edge servers)? Do we still need Hub/CAS servers with 2010? And again 3 email servers with DAS or NAS? Or just lots of discs with a replication to a NAS box? Ive been hunting for a network diagram of an example layouts but not had much luck yet, anyone have any? Thnaks John ------------------------------------------------------------------- John Ellis Tel (0151) 666 3208 Senior IT Officer Fax (0151) 666 3049 Wirral IT Services [email protected] ------------------------------------------------------------------- ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.clearswift.com **********************************************************************
