SCOM 2012 Servers sizing for a small SCOM 2007 new deployment

For my own job, I've to create a new SCOM 2007 infrastructure (less than 250 servers to monitor - 120 servers in the same domain - 120 servers in 10 others domains).

I've also define 2 screnarios according to the Microsoft recommendations.

• scenario given by Microsoft – small deployment

HW Mini required


Role: Root Management Server• 2 disk RAID 1
• 4 GB RAM
• Dual Proc

Role: Operations Database Server,  & Operations Data Warehouse Server (w/ SRS & Web Console Server)• 6 disk RAID 10 (147GB)
• 4 GB RAM
• Dual Proc

• More secure scenario

The idea is to have a secure infrastructure for all monitored servers and a SCOM 2012 compliantcyto be sure if one day we have to migrate to SCOM 2012 - no new server will be needed.

So here is the minimal requisite for a small SCOM 2012 infrastructure (Minimal Hardware is given since we don't have a the moment any Microsoft recommandations):

and here is a more secure Topology Diagram :

SQL DB/DW on a cluster
SQL reporting server on the passive node since cluster is not supported
Servers outside the domain 1 will be linked to MS + RMS (failover) by using certificate
Servers in Domain 1 will be attached to 2 gateways (one for failover)
Console will be installed on a management server

This posting is provided "AS IS" with no warranties.