Just want to ask, I've noticed that under modify collection settings, under advanced tab, there are options to "Enable collection specific policy polling interval". If i check this setting, it will overide the site wide policy setting right? My side wide policy settings is set to occur every 60 minutes, which is the default. Just want to have you guys opinion, if i set the collection policy polling interval setting under the modify collection settings to a collection which is not more that 100 computers to occur every 10 minutes, is it ok or will it burden my primary server? Reason asking is because i am doing an inplace upgrade and have advertised to all of my effected users. I would not want them to wait for 1 hour just to wait for the advertisement to appear and would not want to ask each and everyone of them to everytime run the machine policy retreival in their machine client agent options in order to get the advertisement faster....

10 minutes for a small subset of your clients should be fine. Additional comment (not neccessarily applicable to your question, just additional info): Anything under 5 minutes is really bad not because of load on the MP but because sometimes it takes clients almost that long to sort out the policies.Jason | http://blog.configmgrftw.com | Twitter @JasonSandys

Thanks Jason. But let say for software distribution, if i have a mandatory settings on my advertisement that is targetted on the same collection, let say to execute upon logon, the settings above will not have any effect right? The settings above will only have an effect for non mandatory advertisement that is targetted to the collection correct? One more question, if let say in the future i have 3000-4000 computers, do you think that the settings of 10 mins for policy polling will still apply? Or maybe i have to expand the interval to 30 mins?

Don't confuse actual execution time with policy download. This interval merely controls when the policy is pulled by the client, not when the client executes things in the policy. As for the interval, I would recommend a minimum of 15 minutes. Policy polls are on avg about 4-10K so if you have 3,000 clients polling 96 times a day (for a 15 min interval), that's a lot of traffic that is essentially doing nothing but telling the clients that there's nothing new. There's also a load on the MPs. If your network infrastrucutre is up to this and the MP also, then go for it. It's always a give and take though.Jason | http://blog.configmgrftw.com | Twitter @JasonSandys