On Jun 1, 2012, at 7:40 AM, John Garbutt wrote: > Hi, > > Sorry, not had chance to look at the bugs in the last few days. > > It should be possible to just snapshot the root VDI. I guess that is what > makes the most sense, what does the API say should happen?
+1 Snapshots should only be of the root drive Volume snapshots should be done through the volume api (currently there is no way to back these snapshots up into glance or some such but that should be added) > I guess we want the snapshot operation on the volume. I am not sure how well > this plays with boot from volume. The only case where i can see a compute snapshot doing a snapshot of a volume is if we have booted from a volume. The semantics are a little unclear though. Does it snapshot the volume and turn it into a bootable image? (that is what compute snapshots currently do) > > The error of SR_OPERATION_NOT_SUPPORTED is because you are using LVM over > iSCSI (I guess the nova-volume default). If you used the SM integration and > did something like VHD over iSCSI you should get the snapshots working. But I > guess you don’t want the snapshots sitting un-managed on your storage array? > > Cheers, > John > > From: [email protected] > [mailto:[email protected]] On > Behalf Of Roman Sokolkov > Sent: 01 June 2012 14:38 > To: [email protected] > Subject: [Openstack] XCP snapshotting with volumes attached failure > > Hello, openstack developers! > > We are using openstack on XCP. And if we tried to snapshot VM with iscsi > volumes attached nova fails with http://paste.openstack.org/show/18205/ > > I filled a bug report few days ago > https://bugs.launchpad.net/nova/+bug/1005950 , but there is no answer. > > Also, as I could see qemu,kvm snapshotting was refactored > https://github.com/openstack/nova/commit/7dbf9c7de23623223ef60c0566d9330797c5f87e > in favor snap ONLY root devices instead of libvirt snapshotting > > We could use some small hacks to prevent snapshoting with attached volumes, > but it would be better if xen(xcp) snapshotting will refactored likewise a > libvirt one. Is it possible? > > > -- > Regards, Roman Sokolkov > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > Post to : [email protected] > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp
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