lvcreate detects dos signatures but proxmox dont wipe it!!

[Ronny]

Hi,

this is my problem:
if i create a new disk file (from vzdump-backup or copy an existing) on my iscsi/lvm storage the disk file is full of filesystem errors which are not recoverable!

after a few debugging and much of headache i see on proxmox web-gui this line:
WARNING: dos signature detected on /dev/vms/vm-1001-disk-1 at offset 510. Wipe it? [y/n]: n

the LVM Default answer for this is "YES" - but proxmox lvcreate command does say "NO" and so all my new VM-Disk's will be unusable!!!

my little workaround:
if i create vom command line a new dumy-disk file (100GB), say "Wipe it - Yes" and destroy it i can use this space from proxmox gui for new disks without errors.


i dont now why this is happend, the lvm-storage is 10TB big and has up to 20 VM-Disks right now.

can anyone help me?

thanks a lot

my config:
3 Nodes with one iscsi-LVM Storage (OpenMediaVault)
PVE Manager Version: pve-manager/4.4-1/eb2d6f1e

 

[pabernethy]

Can you explain how to reproduce this?

 

[Ronny]

Hi,

hm, i dont now why and how it happened and how i can reproduce this.
one thing is, that i have for migration from other prx-cluster mount this iscsi-lvm storage to an other(older) proxmox cluster. i now the risk of double vm-id's on both clusters... so it was only for migration things.

all my other proxmox clusters are fine. i see this the first time of 2 years proxmox-cluster experience (with iscsi-lvm storages).

so on the specific cluster it still appear this situation.
maybe the lvm initialisation was not done correctly... but all other vms are fine... strange...


i'm the only one how observe this?