[PVE-User] Bug when removing a VM

[Dietmar Maurer]

> On June 21, 2018 at 3:48 PM Simone Piccardi <piccardi at truelite.it> wrote:
> 
> 
> Il 21/06/2018 10:43, Dietmar Maurer ha scritto:
> > In general, you should never mount storage on different clusters at the same
> > time. This is always dangerous - mostly because there is no locking and
> > because of VMID conflicts. If you do, mount at least read-only.
> > 
> 
> Yes, that's dangerous (I was hurt by this).
> 
> But still I do not understand why, if you remove a VM that has a disk 
> hosted in a specific storage, it will removed also on all other storage 
> (they ), or, like it happened to me, all the logical volumes with the 
> same VMID number in the name.
> 
> We was using different Proxmox server (as independent standalone server, 
> as they must stay in totally separated networks) using shared LVM over a 
> FC connected SAN.

I do repeat myself, but you should never do that (never). Locking does
not work, and it is likely that you will lose data.