| Dave, OpenStack does "qemu-img snapshot" command to create a snapshot, here's the method: https://github.com/openstack/nova/blob/stable/folsom/nova/virt/libvirt/utils.py#L335-L347 So the memory is _not_ saved, only the disk is. Note that it's always hard to make consistent snapshot. I assume that freezing the filesystem itself is the only solution to have a consistent snapshot, and still this doesn't mean that your application's data are consistent , in term of commits for instance with a database. I don't know which applications do you run but at the end, you might consider to stop some daemon as well, freeze the fs (to be sure), take your snapshot, unfreeze, start your daemon. You could reach 100% consistency with this method… I guess :) Cheers. –––– Sébastien Han Cloud Engineer "Always give 100%. Unless you're giving blood."  PHONE : +33 (0)1 49 70 99 72 – MOBILE : +33 (0)6 52 84 44 70 EMAIL : [email protected] – SKYPE : han.sbastien ADDRESS : 10, rue de la Victoire – 75009 Paris WEB : www.enovance.com – TWITTER : @enovance On Apr 7, 2013, at 10:13 PM, Wido den Hollander <[email protected]> wrote: Hi Dave, |
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