> > The only thing to do that remains would be a daemon that switches off > > unused machines to save energy. But this could be done using STONITH > > agents. > > > > Basically this would be an option to make cloud computing really green! > > > > Please mail me your comments about this idea. Thanks. > > > > Cheers, > > No reply, no comments? Nothing at all?
Hello Michael, Although in theory the idea is sound I use the cluster suite primarily for customers demanding high availability. Adding complexity, turning server's off & on and moving resources around probably won't be beneficial to the uptime off the resources & hosts. Turning nodes off also effects the number of quorum votes. If you have a major disaster when a part of the cluster is power-ed down you might create an scenario where the cluster can not recover itself but it would have recovered if all nodes were still running. I could see these features being very useful in non-ha environments like testing/development but most off MY customers cannot use this feature or would rather pay the power bill... Just my 2 cents, Robert van Leeuwen _______________________________________________ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker
