Yep...already entered the thinking....however most are using a "webmail"
client (IMAP over web), the administrative push is OWA for most of the
interaction. Or using the current "rather lite" webmail via IMAP to the
student mbx.
just
need to do some rethinking, reading, designing.......
--kev
List Charter and FAQ at:-----Original Message-----
From: William Lefkovics [mailto:[EMAIL PROTECTED]]
Sent: Friday, March 15, 2002 4:34 PM
To: MS-Exchange Admin Issues
Subject: RE: An Active/Active cluster installation of exchangeThat limitation is for concurrent connections. You can have 15,000 mailboxes. And if they are students, they may well be POP3 (guessing) and you *might* get away with the concurrency limitation.List Charter and FAQ at:-----Original Message-----
From: Rob Wilcox [mailto:[EMAIL PROTECTED]]
Sent: Friday, March 15, 2002 1:22 PM
To: MS-Exchange Admin Issues
Subject: RE: An Active/Active cluster installation of exchangeThe limits you see in the document I linked below, refer to clusters.If you have as many as 15,000 users then Active/Active is NOT going to work for you unless you're prepared to buy a lot of clusters!However you could consider Active/Passive, and user the Exchange 2000 sizing tool to determine the sorts of machine you might consider using. (http://www.microsoft.com/exchange/techinfo/planning/2000/ExchangeCalculator.asp)ThanksRob-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: 15 March 2002 20:57
To: MS-Exchange Admin Issues
Subject: RE: An Active/Active cluster installation of exchangeWell hell....I've read the XchSP2cl doc a few time in the past (unfortunately), and that the 1900 concurrent users per node never made it to my brain. Time to re-read. The good thing is that y'all brought this to my attention. Also the vast majority of the 15000 users is a 2nd phase (students), Phase I is Faculty and Staff, which come in under the limitations.Thanks much to the list....You just save my a$$.I do have a question (that I may answer after re-reading some docs). Does this limit also exist in multi-server non-clustered environments?Thanks again,--kevList Charter and FAQ at:-----Original Message-----
From: William Lefkovics [mailto:[EMAIL PROTECTED]]
Sent: Friday, March 15, 2002 2:35 PM
To: MS-Exchange Admin Issues
Subject: RE: An Active/Active cluster installation of exchangeYes. It was less before service pack 2. 1500 per node after sp1, I believe.WilliamList Charter and FAQ at:-----Original Message-----
From: Rob Wilcox [mailto:[EMAIL PROTECTED]]
Sent: Friday, March 15, 2002 11:23 AM
To: MS-Exchange Admin Issues
Subject: RE: An Active/Active cluster installation of exchangeHi,ThanksRob-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: 15 March 2002 16:47
To: MS-Exchange Admin Issues
Subject: RE: An Active/Active cluster installation of exchangeI fully understand the management by rag routine. And related the known (to me) limitations of clusters both active/active and active/passive. But we got the active/active cluster. Currently the processors are well under the 40% (only 700 users currently).How ever the active/active limitation of 1900 concurrent users/node is new to me. I plan to look into this ASAP.We are on sp2 and E2K ent. As for where the 15000 mailboxes living somewhere...If you mean disk space.. that is in the worksTHANKS for the heads up on the concurrent user limitation--kevList Charter and FAQ at:-----Original Message-----
From: William Lefkovics [mailto:[EMAIL PROTECTED]]
Sent: Thursday, March 14, 2002 2:26 PM
To: MS-Exchange Admin Issues
Subject: RE: An Active/Active cluster installation of exchangeMy heart goes out to you.Sometimes I think management really buys into the marketing of clusters and do not look at the specific limitations of the Microsoft model as it applies to Exchange Server. They like to tell their management peers they have an Exchange cluster.Now... you are aware that an Active/Active cluster has the limitation of 1900 concurrent users per node? Where are all those 15,000 mailboxes going to go? That is assuming sp2. And watch those processors. 40% usage max.William Lefkovics, MCSE, A+, ExchangeMVPList Charter and FAQ at:-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Thursday, March 14, 2002 8:40 AM
To: MS-Exchange Admin Issues
Subject: RE: [Exchange2000] An Active/Active cluster installation of excha ngeWe have been using the active/active cluster for about a year now and are going though a VERY controlled migration to Exchange from VMS so the Ex5.5 to E2K hurdles were not an issue. Most of the issues came from the front-end back-end setup and not the cluster setup. I think we jumped on the active/active bandwagon early via politics. We are currently running quad XEON 700's in the cluster and 2 dual 833's on the front end. We have around 730 people on E2K at present but the end result will be 15000 mailboxes.--kevList Charter and FAQ at:-----Original Message-----
From: Arnold, Jamie [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, March 12, 2002 8:51 AM
To: MS-Exchange Admin Issues
Subject: RE: [Exchange2000] An Active/Active cluster installation of excha ngeYou are, of course, correct.Are you moving from 5.5 to 2K?J (CB)List Charter and FAQ at:-----Original Message-----
From: William Lefkovics [mailto:[EMAIL PROTECTED]]
Sent: Monday, March 11, 2002 11:47 AM
To: MS-Exchange Admin Issues
Subject: RE: [Exchange2000] An Active/Active cluster installation of excha nge>>Is there anything that they forget to tell you in these papers.Only that the return seems to exceed the effort.Active/Passive is best for now.WilliamList Charter and FAQ at:-----Original Message-----I'm starting today to deploy my first exchange 2000 active/active
From: Sabo, Eric [mailto:[EMAIL PROTECTED]]
Sent: Monday, March 11, 2002 5:12 AM
To: MS-Exchange Admin Issues; Exchange Discussions; [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: [Exchange2000] An Active/Active cluster installation of exchange
cluster. I read the white papers from Microsoft on how to set this up.
Is there anything that they forget to tell you in these papers. We have
7000 users in our exchange site now, which contains two servers. We
never have more than 1000 concurrent users attached to the system at all
times. What files should be on the cluster drives (store - priv& pub,
SMtp logs, etc...)
I have two Quad 700 MHz 2 Meg Xenon with over 3gb RAM attached to a
Compaq MA6000 storageworks unit.
We are going to migrated the users using the mailbox move method.
Any suggestion would be appreciated.
Thanks,
Eric Sabo
NT Administrator
Computing Services Center
California University of Pennsylvania
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