On Jul 22, 2011, at 10:31 PM, Apostolos Pantazis wrote: > Last time I checked they did not support snapshots on a running VM and that > was a issue at least for us other than that (which may not even be true > anymore) it looked very promising
Correct me if I'm wrong, but I had the understanding that neither Xen nor KVM were capable of doing VMware-style full-state snapshots at all. I don't recall seeing the feature when I was last using XenServer and I know from experience that the only snapshotting available on plain Linux distributions is to either use LVM and use a logical volume as the VM's "disk", or disk images with a tool like qemu-img. Neither alternative preserves full VM state, though, so if you do a snap on Xen or KVM while the VM is running, it's crash-consistent at best. Of course, VMware has the two disadvantages of introducing Windows if you're deploying it in a Unix/Linux-only shop (which my coworkers are exceptionally resistant to), and their new pricing structure, which hiked licensing numbers and fees for just about every configuration. Gregory -- Gregory K. Ruiz-Ade <[email protected]> OpenPGP Key ID: EAF4844B keyserver: pgpkeys.mit.edu
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