Link to home
Start Free TrialLog in
Avatar of seworby
seworby

asked on

How much RAM for small Exchange 2010 installation

I'm doing my first Exchange 2010 installation on a new Dell T610 server. The server will be an additional server in a 2003 domain, but will be running Server 2008 64-bit (obviously). There are only 20 Exchange users, but that one server will be handling all the Exchange functionality. How much RAM do I need as a minimum? Thanks.
Avatar of Mike Thomas
Mike Thomas
Flag of United Kingdom of Great Britain and Northern Ireland image

Avatar of Mino DC
Whereas only 20 users, unless they have a lot of mail, I would say that 4GB of RAM are sufficient.

To obtain a more specific look at:
http://technet.microsoft.com/en-us/library/dd346700.aspx
Avatar of seworby
seworby

ASKER

Yes, I read that before asking. I suppose it's doing "multiple roles" according to this article, but do I really need 10Gb? Sounds totally OTT for 20 users... Thanks.
Exchange 2010 is exclusively 64bit and RAM is not really that expensive now. I would say for an organization of Upto 100 users with heavy usage 4-8 GB should be great.
Sometimes it is not just the number of Users who will be using email, but sometimes it could be mail spikes, Mailstorms or maybe a Spam attach which can consume resources rather quickly. So I suggest 4-8 GB :)
Hilal
Hi 4GB is recommended.

more info found here:

http://technet.microsoft.com/en-us/library/dd346700.aspx 
Avatar of seworby

ASKER

Thanks for the comments. I suppose perhaps what I should have asked is: "Will Exchange actually install with these multiple roles onto server with 4Gb RAM, or do I really need 10Gb per the article to permit the installation itself to run?". I don't want to have to turn round to the customer and say "I'm sorry, but I just can't install it". They've being very mean on costs. If it were mine, I'd proably throw 16Gb at it to be sure, but it's not... Thanks.
SOLUTION
Avatar of Hilal1924
Hilal1924
Flag of India image

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
SOLUTION
Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
ASKER CERTIFIED SOLUTION
Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
Avatar of seworby

ASKER

Thanks for all the help and comments which I have taken on board.
Exchange eats RAM, so don't be surprised to see most of your RAM being used up by store.exe.
I have 24Gb in my 2010 server and 17Gb is regularly in use by store.exe.