Re: [libvirt] bug: try to take disk snapshot for LVM2 Volume

Hi, Eric. > On 09/29/2011 11:26 PM, MATSUDA, Daiki wrote: >> I tried the new snapshot function implemented by Eric Blake. >> >> It works very well for QCOW2 disk image system. >> But I often use LVM2 volume for QEMU virtual machines and tried to take >> disk snapshot by virsh command ( snapshot-create DOMNAME --disk-only). >> So, finally qemu monitor command 'snapshot_blkdev' accepts the LVM2 >> volume and create QCOW2 snapshot image. In addition, domain's >> configuration file is replaced to use snapshot disk image instead of >> LVM2 volume. > > It sounds like virsh did what it was told, but that you told it so > little information that it had to fill in the gaps and choose its own > destination file name (hence the .1317357844 suffix after the action). > Your situation sounds like a case where you may want a bit more control > over the destination file name. I made the patch for the problem to take the snapshot but qcow2. It use the 'qemu-img' command, I know that it is not essential solution. But I think it is better than to link qemu's libraries.