New Cluster Info

I was at the MVP summit last week and as part of the summit, we spent several hours with the cluster team and learned all about some of the really fun new stuff.


Sorry, I can’t share. I just wanted to tease everyone. :)


One item that I can share, it is clear to me that anyone out there that is using DHCP to assign IP addresses to your cluster nodes should be spanked by a large hairy and sweaty man.


DHCP, in my opinion, should never be used to distribute IP addresses to cluster nodes. Never. Write it down, never. For anyone that does this, please go back to page 1 in the high availability class and note that it is a very bad thing to build dependencies to other processes that can cause failures of your highly available applications. If you can avoid such a dependency, you should.


Thus, don’t use DHCP to assign IP addresses to your cluster nodes. I don’t care if it is being done through reservations, it is still a bad thing.


OK, now I am off my soap box.