Hi Simon, thank you! you dump the snapshot to raw img, possible to exprt to qcow2 format? and you meant create the VM using qcow2 with the local HDD storage, then convert to rbd? is it perfect, if you can provide more details... it's highly appreciated.. thank you!
On Thu, Jan 28, 2016 at 7:57 PM, Simon Ironside <[email protected]> wrote: > On 28/01/16 10:59, Bill WONG wrote: > > how you manage to preform snapshot with the raw format in qemu-kvm VMs? >> > > # Create a snapshot called backup of testvm's image in the rbd pool: > rbd snap create --read-only rbd/testvm@backup > > # Dump the snapshot to file > rbd export rbd/testvm@backup testvm-backup.img > > # Delete the snapshot > rbd snap rm rbd/testvm@backup > > cloud you please let me know how you use the ceph as backend storage of >> qemu-kvm, as if i google it, most of the ceph application is used for >> OpenStack, but not simply pure qemu-kvm. >> > > I'm using pure libvirt/qemu-kvm too. Last I checked, virt-install doesn't > support using rbd volumes directly. There's two ways I know of to get > around this: > > 1. Create the VM using a file-based qcow2 image then convert to rbd > > 2. Modify the XML produced by virt-install before the VM is started > > I can provide detailed steps for these if you need them. > > Cheers, > Simon >
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