Dear colleagues, I encountered some very strange issue and would be grateful if you share your thoughts on that. I have a qcow2-image that is located at gfs2 filesystem on a cluster. The cluster works fine and there are dozens of other qcow2-images, but, as I can see, one of images seems to be corrupted. First of all, it has quite unusual size: > stat /mnt/sp1/ac2cb28f-09ac-4ca0-bde1-471e0c7276a0.bak File: `/mnt/sp1/ac2cb28f-09ac-4ca0-bde1-471e0c7276a0.bak' Size: 7493992262336241664 Blocks: 821710640 IO Block: 4096 regular file Device: fd06h/64774d Inode: 220986752 Links: 1 Access: (0744/-rwxr--r--) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2014-10-09 16:25:24.864877839 +0300 Modify: 2014-12-13 14:41:29.335603509 +0200 Change: 2014-12-13 15:52:35.986888549 +0200 By the way, I noticed that blocks' number looks rather okay. Also qemu-img can't recognize it as an image: > qemu-img info /mnt/sp1/ac2cb28f-09ac-4ca0-bde1-471e0c7276a0.bak image: /mnt/sp1/ac2cb28f-09ac-4ca0-bde1-471e0c7276a0.bak file format: raw virtual size: 6815746T (7493992262336241664 bytes) disk size: 392G Disk size, although, looks more reasonable: the image's size is really should be about 300-400G, as I remember. Alas, I can't do anything with this image. I can't check it by qemu-img, neither I can convert it to the new image, as qemu-img can't do anything with it: > qemu-img convert -p -f qcow2 -O qcow2 /mnt/sp1/ac2cb28f-09ac-4ca0-bde1-471e0c7276a0.bak /mnt/tmp/ac2cb28f-09ac-4ca0-bde1-471e0c7276a0 Could not open '/mnt/sp1/ac2cb28f-09ac-4ca0-bde1-471e0c7276a0.bak': Invalid argument Could not open '/mnt/sp1/ac2cb28f-09ac-4ca0-bde1-471e0c7276a0.bak' Any one have experienced the same issue? What do you think, is it qcow2 issue or a gfs2 issue? What would you do in similar situation? Any ideas, hints and comments would be greatly appreciated. Yes, I have snapshots, that's good, but wouldn't like to lose today's changes to the data on that image. And I'm worried about the filesystem at all: what if something goes wrong if I try to remove that file? Thanks to all! -- V.Melnik P.S. I use CentOS-6 and I have these packages installed: qemu-img-0.12.1.2-2.415.el6_5.4.x86_64 gfs2-utils-3.0.12.1-59.el6_5.1.x86_64 lvm2-cluster-2.02.100-8.el6.x86_64 cman-3.0.12.1-59.el6_5.1.x86_64 clusterlib-3.0.12.1-59.el6_5.1.x86_64 kernel-2.6.32-431.5.1.el6.x86_64 -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
