Hello guys! I'm in direct contact with the guys @ CloudSigma. I've asked them to support CPU, RAM and HDD hot swapping and they say their system is capable of this but that linux (particularly, Fedora) isn't. They agree to do some testing on the subject but, honestly, I don't consider myself to be sufficiently knowledgeable to lead this. Is there anybody here interested on this? Anyway, their lead dev told them this: "Libvirt doesn't do any of this stuff itself (hot swapping). What it does include is an ability to use the virtio balloon driver. This essentially allows you to give a guest a large amount of ram, with it then voluntarily lending some of that memory back to the system. It requires a degree of cooperation and trust between host and guest that isn't appropriate (or easy to bill) in a public cloud, but it's a useful hack on private VM deployments in the absence of proper memory hotswap in qemu-kvm." I've read some stuff here: http://www.linux-kvm.org/page/CPUHotPlug It's hard to be free... but I love to struggle. Love isn't asked for; it's just given. Respect isn't asked for; it's earned! Renich Bon Ciric http://www.woralelandia.com/ http://www.introbella.com/ _______________________________________________ cloud mailing list cloud@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/cloud