I tend to think the best approach to these things is to grow into the boxes. Spec a box to start, and buy one or two. Then see for yourself where the knee of the performance curve is. There are simply too many variables to be able to tell in advance how to specify a server.
Ed Crowley MCSE+Internet MVP kcCC+I Tech Consultant Compaq Computer Corporation Protecting the world from PSTs and Bricked Backups! -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Walt Brannon Sent: Tuesday, February 19, 2002 5:05 PM To: Exchange Discussions Subject: RE: Exchange 2,000 scalability question. Hello Pete, Exchange 2000 can potentially handle more users per server due to EX2K having the ability to have multiple mbx stores. We at UNO are going to answer the same question. As you know it is difficult to predict how students will use Exchange 2000. Some of the members of the [EMAIL PROTECTED] list that we both belong to report 15,000 to 20 thousand mailboxes on a large cluster. Walt Brannon University of New Orleans -----Original Message----- From: Pfefferkorn, Pete (PFEFFEPE) [mailto:[EMAIL PROTECTED]] Posted At: Tuesday, February 19, 2002 1:13 PM Posted To: exmail Conversation: Exchange 2,000 scalability question. Subject: Exchange 2,000 scalability question. Well, First let me apologize for the vagueness of this question. Just starting to read up on Exchange 2000. I've been asked by management to spec out the possibility of deploying Exchange 2,000 to all users on our campus (40,000 users). I'm reading Tony Redmond's book on Exchange 2000 and it mentions on page 21 that on 5.5 maximum user community was in reality about 3,000 per server for a 8 way. I know that really depends on the server setup, user load, etc. Our Dell 8650's with 2-550mhz processors and 2 gig of memory is handling about 3,000 users per server with 20 meg quotas per mailbox. They are active accounts (light to medium), so the 3,000 seems to match up since our system CPU utilization averaging about 80-90% during peak times. On the same page it states that Exchange 2000 states about 10,000 for a single node cluster. I'm wondering if anyone had opinions on this issue. What is different about Exchange 2000 that allows for more users per system. Is this do to coding changes in the store.exe or is it based on multiple stores per server? Given we can get about 3,000 users per Exchange 5.5, I'm wondering what the actual limit would be for Exchange 2000 per server. Pete Pfefferkorn Senior Systems Engineer/Mail Administrator University of Cincinnati 51 Goodman Street Cincinnati, OH 45221 Phone - (513) 556-9076 Fax - (513) 556-2042 _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED]
