On Thu, Oct 09, 2008 at 12:03:28PM -0500, Anthony Liguori wrote: > I've been persuaded. Relying on the host's integrity for guest data > integrity is not a good idea by default. I don't think we should use > cache=off to address this though. I've sent a patch and started a > thread on qemu-devel. Let's continue the conversation there. Well, it's really good to be able to expect a good default behaviour but that doesn't mean there shouldn't be a user setting to activate or deactivate caching explicitely. It will still be avaialble at the QEmu level, I think it makes some sense in other environment even if that's not applicable for a container based virtualization. I think we should still provide an optional flag at the libvirt device XML description to indicate caching on the hypervisor preference for a device. Off by default of course. Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel@xxxxxxxxxxxx | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/ -- Libvir-list mailing list Libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list