generally, you plan server sizes based on the required IOPS for the user population - of that server.
in most setups i've seen, user placement is any of: a] random b] alphabetical c] heavy/medium/light d] anything else you want YOU know your server performance metrics and have to judge based on the available toolsets. ________________________________________ From: Harry Singh [hbo...@gmail.com] Sent: Thursday, July 02, 2009 5:23 PM To: MS-Exchange Admin Issues Subject: Re: Exchange 2003 server sizing That being said, is it then wise to disperse users who you know live in outlook across multiple stores ? How do you plan for users who you know will have "heavy" mailboxes? I know an org that gives at least 20 users 5GB storage space. I agree store sizing hinges on backup and recovery time objectives. On 7/2/09, Michael B. Smith <mich...@owa.smithcons.com> wrote: > a store processes 100 RPC requests at a time, doesn't matter how many stores > or storage groups you have. the question because - rpc latency. how long > does a request wait before it gets processed? > > that's what server sizing is all about. > > if you are in a CCR environment, you can go up to about 200 GB. the question > is not whether you can have larger stores, but how long do they take to back > up and restore? your recovery SLAs are the important point. > > ________________________________________ > From: Harry Singh [hbo...@gmail.com] > Sent: Tuesday, June 30, 2009 10:51 PM > To: MS-Exchange Admin Issues > Subject: Re: Exchange 2003 server sizing > > I've always wondered how many users or concurrent mapi connections a > store is comfortably able to handle ? With a single BE in a clustered > environment -- does the 100GB per store logic still apply with 4K > users ? > > > > On 6/30/09, Michael B. Smith <mich...@owa.smithcons.com> wrote: >> I wouldn't hesitate to put 4,000 users on a single BE server (clustered) >> and >> two FE servers (load-balanced). >> >> That being said - you are asking the wrong questions, in my opinion. You >> need to determine what your performance issue is RIGHT NOW. perfmon is >> your >> friend. So is my book. :-) >> >> Regards, >> Michael B. Smith, MCITP:SA,EMA/MCSE/Exchange MVP >> My blog: http://TheEssentialExchange.com/blogs/michael >> Monitoring Exchange w/OpsMgr now available http://snurl.com/45ppf >> ______________________________________ >> From: Ellis, John P. [johnel...@wirral.gov.uk] >> Sent: Monday, June 29, 2009 10:02 AM >> To: MS-Exchange Admin Issues >> Subject: Exchange 2003 server sizing >> >> We have Exchange 2003 in place. Comprising of 4 node cluster with 3 >> active servers. These servers are connected to a Sun SAN for back end >> storage. >> We have around 4000 users. Each server has 3 or 4 stores. We also run >> OWA internally and externally >> >> What im after is a whitepaper/guide that defines how many users we >> should have per server, how many OWA connections etc that we should have >> before we consider the servers over worked. >> Is there such a guide? >> >> Im aiming to try and resolve/reduce the number of calls we get saying >> email is running slow or Ive the popup box saying "trying to retrieve >> data from server xxx" message >> >> Any pointers to a guide would be good. >> >> Cheers >> John >> >> ------------------------------------------------------------------- >> John Ellis Tel (0151) 666 3208 >> Senior IT Officer Fax (0151) 666 3049 >> Wirral IT Services >> johnel...@wirral.gov.uk >> ------------------------------------------------------------------- >> >> ********************************************************************** >> 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 >> ********************************************************************** >> >> >> >> ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ >> ~ http://www.sunbeltsoftware.com/Ninja ~ >> >> >> > > >
