• Twitter
  • FaceBook

Exchange Server Forums

Forums | Register | Login | My Profile | Inbox | RSS RSS icon | My Subscription | My Forums | Address Book | Member List | Search | FAQ | Ticket List | Log Out

Calculating server size

Users viewing this topic: none

Logged in as: Guest
  Printable Version
All Forums >> [Microsoft Exchange 2003] >> General >> Calculating server size Page: [1]
Message << Older Topic   Newer Topic >>
Calculating server size - 8.Jul.2008 10:04:07 AM   


Posts: 1
Joined: 8.Jul.2008
Status: offline
I have questions re: calculating server size for an Exchange 2003 server, and specifically using the formula

megacycles/mailbox = ((average CPU usage) (speed of processors in megacycles) (number of processors)) (number of mailboxes)

Using perfmon I have gathered data where the % proc time is less than 2 %, but when I use this and other info to fill in the formula the value I arrive at appears that I am already over the threshold for recommended mailboxes.  The server in question has two Intel Xeon 3.6 Ghz processors and only 120 mailboxes.  I think my math is bad or I am not understanding the values in the formula.  Specifically,

(1.3 x 3600 x 2) / 120 = 78 megacycles per mailbox.  Is this correct?

Post #: 1
RE: Calculating server size - 8.Jul.2008 6:12:50 PM   


Posts: 4093
Joined: 17.Jan.2008
From: Somewhere near London, UK
Status: offline
For 120 users I would ignore the processor power of the server. Anything bought in the last three years would be fine.
Exchange needs storage. That is where the most performance gain will be made. You will make little if any gain by increasing processing power.



Simon Butler,
Exchange MVP
Blog: http://blog.sembee.co.uk/
Web: http://www.amset.info/
In the UK? Hire me: http://www.sembee.co.uk/
Exchange Resources: http://exbpa.com/

(in reply to JCJW)
Post #: 2

Page:   [1] << Older Topic    Newer Topic >>
All Forums >> [Microsoft Exchange 2003] >> General >> Calculating server size Page: [1]
Jump to:

New Messages No New Messages
Hot Topic w/ New Messages Hot Topic w/o New Messages
Locked w/ New Messages Locked w/o New Messages
 Post New Thread
 Reply to Message
 Post New Poll
 Submit Vote
 Delete My Own Post
 Delete My Own Thread
 Rate Posts

Follow TechGenix on Twitter