RE: An Active/Active cluster installation of exchange

[violettek]

Title: Message

I 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 works

 

 

THANKS for the heads up on the concurrent user limitation

 

--kev

-----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 exchange

My 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+, ExchangeMVP

 

-----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 nge

We 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.

 

--kev

-----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 nge

You are, of course, correct.

 

Are you moving from 5.5 to 2K? 

 

J (CB)

-----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.

 

William

-----Original Message-----
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

I'm starting today to deploy my first exchange 2000 active/active
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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