On Wed, 2010-07-21 at 17:24 -0400, Tim Holloway wrote: > > I tend to use dd myself. Although some of my VMs got pushed into files, > so they just replicate via simple file copy operations.
dd is really not good. It takes a complete image of the device, no matter if there is data or not. Much less no compression. Restoring that data on another device of varying size is not fun. Used to drive me nutz back in the day with floppies, would be the size of the floppy, no matter what data was on there, same for cdroms, etc. If you unpack a dd image on a partition thats bigger, you have left over space. Its just nasty, and not ideal anymore. At least not IMHO. > For hot-copy operations of VMs, I think that both Xen and VMWare have > tools. Well not really, I don't believe Xen has anything to clone a VM. That would be more an operation of the medium storing the VM like LVM, etc. Xen can do live migration, but thats not the same. http://en.wikipedia.org/wiki/Xen#Virtual_machine_migration Now RedHat has developed this, which is rather interesting. http://virt-manager.org/ One of the things that comes with is virt-clone http://linux.die.net/man/1/virt-clone Looks like virt-manager supports Xen, qemu, and of course KVM ;) -- William L. Thomson Jr. Obsidian-Studios, Inc. http://www.obsidian-studios.com --------------------------------------------------------------------- Archive http://marc.info/?l=jaxlug-list&r=1&w=2 RSS Feed http://www.mail-archive.com/[email protected]/maillist.xml Unsubscribe [email protected]
