I saw in Technet docs the info: Agent-managed and UNIX or Linux computers per management group 6,000 (with 50 open consoles); 10,000 (with 25 open consoles So, to monitor more than 10.000 computers I will need to install more than one Management Group? Agentless managed computers per management group 60 So, to monitor more than 60 computers without agent I will need to install more than one Management Group?

Hi I think this is the technet page you are referencing: http://technet.microsoft.com/en-us/library/bb309428.aspx I don't know if these are supported limits (ie Microsoft won't support an infrastructure that exceeds these limits) or whether they are recommended limits (the column title does say recommended) but either way there are so many other factors that come into play that I don't believe you can have hard and fast limits here. There are plenty of posts from customers with performance problems with only a few hundred servers and so much depends on the design, the hardware and tuning of OpsMgr that I would use the figures as common sense guidelines. For instance, if you are designing a solution for an international bank with 8000 servers to monitor then you might want to consider the pros and cons of seperate management groups, even if the figure is below the 10000 "limit". Cheers GrahamView OpsMgr tips and tricks at http://systemcentersolutions.wordpress.com/

The salient point here is the number of open consoles. Each open Operations console puts a demand on the RMS. This does not happen with the Web console. If you do not have 25/50 Ops consoles open at the same time, you can have more agents. And as Graham says, there are many other factors that impact what a management group can handle. Monitoring Exchange servers for instance is a much heavier load than monitoring the same number of SQL Servers.

The salient point here is the number of open consoles. Each open Operations console puts a demand on the RMS. The Web console does not have equivalent requirements, although it can only be used for monitoring, not admin. With R2, the Web console has some very nice capabilities - albiet from a monitoring aspect only. If you do not have 25/50 Ops consoles open at the same time, you can have more agents. And as Graham says, there are many other factors that impact what a management group can handle. Monitoring Exchange servers for instance is a much heavier load than monitoring the same number of SQL Servers.