Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On 05/14/2017 06:11 PM, Michael Hierweck wrote: > up to now to use LVM (thick) provisioning to provide virtual disks for > VMs: RAID => LVM => LV => DRBD => KVM/QEMU (virtio). > > We would like to be able to take snapshots from our virtual disks in > order to be able to use them as readonly source to consistent backups. > Therefore we would need to introduce a LVM thin provisioning layer > somewhere. Do I understand correctly that you are not planning to store the VM images in a filesystem (on the host), but in (thin-provisioned) block-devices? If yes, then you might also want to consider to use one of the COW-capable image formats qemu supports (qcow2, qed) on an ordinary (XFS) filesystem on the host. Regards, Lutz Vieweg