Failed to delet an Snapshot - Exit Code 1

[fireon]

Hello,

i would like to delte some snapeshots, i don't need them any more. VM state is running (winSBS2011) Imageformat qcow2 and i have to snapshots. See picture attached. So fist i clicked on the last snapeshot (without ram). After... i don't know... about 5 Minutes i get an errormessage:

command '/usr/bin/qemu-img snapshot -d vor_popcon /var/lib/vz/images/100/vm-100-disk-1.qcow2' failed: exit code 1

But the new state is deleted, and when i do an qemu info ist says only one snapshot.

image: /var/lib/vz/images/100/vm-100-disk-1.qcow2
file format: qcow2
virtual size: 465G (499289948160 bytes)
disk size: 518G
cluster_size: 65536
Snapshot list:
ID        TAG                 VM SIZE                DATE       VM CLOCK
1         vor_Entfernung_von_DELL_apps      0 2014-12-01 18:15:09  246:17:54.294
Format specific information:
    compat: 1.1
    lazy refcounts: false

So what was going wrong, i never had this problem before, and I'am not on the testingrepo. So can i remove the other snapshot? It has 18GB on the harddrive... or should/must i fix the problem with the last snapshot first?

proxmox-ve-2.6.32: 3.3-139 (running kernel: 2.6.32-34-pve)
pve-manager: 3.3-5 (running version: 3.3-5/bfebec03)
pve-kernel-2.6.32-32-pve: 2.6.32-136
pve-kernel-2.6.32-29-pve: 2.6.32-126
pve-kernel-2.6.32-34-pve: 2.6.32-140
lvm2: 2.02.98-pve4
clvm: 2.02.98-pve4
corosync-pve: 1.4.7-1
openais-pve: 1.1.4-3
libqb0: 0.11.1-2
redhat-cluster-pve: 3.2.0-2
resource-agents-pve: 3.9.2-4
fence-agents-pve: 4.0.10-1
pve-cluster: 3.0-15
qemu-server: 3.3-3
pve-firmware: 1.1-3
libpve-common-perl: 3.0-19
libpve-access-control: 3.0-15
libpve-storage-perl: 3.0-25
pve-libspice-server1: 0.12.4-3
vncterm: 1.1-8
vzctl: 4.0-1pve6
vzprocps: 2.0.11-2
vzquota: 3.1-2
pve-qemu-kvm: 2.1-10
ksm-control-daemon: 1.1-1
glusterfs-client: 3.5.2-1

Thanks and best Regards

 

[fireon]

No one had this problem until now?