Hypothetically, I have 1000 web servers. If I want to patch half of my servers so that the other half stay online how would I accomplish this with SCCM? (is it possible? if so how?) Also Hypothetically, if I have 15% of my 1000 servers down and I can't go below 50%, can SCCM be aware of this threshold and adjust accordingly? (is it possible? if so how?)

Yes, using maintenance windows. No, not out of the box.

You could create two collections of servers, each containing 50% of the servers. Advertise patches to each of the collections using differnet deadlines. John Marcum | http://myitforum.com/cs2/blogs/jmarcum/|