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Size a Sharepoint Server for 3000 users


My boss has asked to size up a Sharepoint back en SQL 2005 server for monday (never had to size up anything related to Sharepoint).  Knowing that Sharepoint application does use resource consuming functionnalities such as Full Text searches and BLOB's, I was wandering about what kind of architecture are we looking into.  Also what kind of disk volume are we looking for?  Did anyobdy had any experience into sizing a similar architecture....There will be about 3000 users using that system....Thank you for your feedback.
3 Solutions
I've never sized a server for 3K sharepoint users, but if I look at our server and number of users, this is what it would take. Are that 3000 concurrent users ... ?

... LARGE !!!!
Go for at least 16GB of memory, 4 dual core processors and 1 TB of diskspace ... or you'll find yourself upgrading the hardware within the year. Ofcourse the disk size depends on what you will put into sharepoint, but my experience is that it will consume mojar GBs. So if I were in your shoes, I would try to go for the TB.

... and you probably need a DR machine as well with 3000 users, it's hardly to be non-critical :-)

Hope this helps ...
Racim BOUDJAKDJIDatabase Architect - Dba - Data ScientistAuthor Commented:
<<Are that 3000 concurrent users ... ?>>
No.  That's the total number of users.  I expect about 40% of these users to consult the server each day.  I expect about 50% of the activity to be focused on searches, 40% on regular SQL queries and 10% on overhead (monitoring, admnistration) needs.  As for sizing,  I want to go for a 2Tb configuration that may evolve in time to a bigger configuration....
These sites give you the recommended sizing and hardware for Sharepoint Server:

Deployment Scenarios

Microsoft Office SharePoint Server 2007

Deployment for Office SharePoint Server 2007

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Racim BOUDJAKDJIDatabase Architect - Dba - Data ScientistAuthor Commented:
Thanks for the information...On the following scenario :

Web and search servers       2 GB       200 GB       2       Dual 2.8 GHz Pentium 4
Database server       2 GB       200 GB       1       Dual 2.8 GHz Pentium 4
Index management server       2 GB       100 GB       1       Dual 2.8 GHz Pentium 4

What is exactly the Index management server?  Is it a physical location for the full text catalog?  Is the IO load more important on that server?  Can I really use only one SQL Server with a quad core and fast disks....
The disk requirements for your SQL database will vary depending on what you plan on using your SharePoint environment for. For example, we are in the process of rolling out SharePoint to 3000 employees and we currently have about 100 employees on the system and our database is currently sitting at 40 GB.  
That's somewhat similar as I have at my job. We account for each user an amount of 350MB of space. So that brought me to the number of 1TB for 3000 users.

Hope this helps ...

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