On 3/12/19 4:52 PM, Eric Blake wrote: >> vm_checkpoints table >> >> - checkpoint_id: UUID >> - parent: UUID >> - vm_id: UUID >> - creation_date: TIMESTAMP >> >> vm_checkpoint_disk_map table >> - disk_id: UUID >> - checkpoint_id: UUID >> > > And no state of the <domain> at the time the checkpoint was created? I meant to add: once we start playing with checkpoints vs. external snapshots vs. hotplug in anger, then knowing WHICH disks existed at the time of a given checkpoint may prove invaluable to even figure out WHICH disks need to participate in a given backup operation. The initial implementation uses XML (so that adding features can hopefully reuse the same API, rather than needing yet more one-off API additions), even if it is currently limited to not playing nicely with snapshots. -- Eric Blake, Principal Software Engineer Red Hat, Inc. +1-919-301-3226 Virtualization: qemu.org | libvirt.org
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