> The way that oVirt manage storage domains accessed via FC is very
smart.
> There is separate logical volume for each virtual disk. But I think that
> logical volume at the same time could be "touched" only by one host. Is
> it possible that two host access read/write the same logical volume and
> there is no data corruption?
hence a shared disk over block storage using LVM must be
pre-allocated, so no LV changes (lv extend) would be needed.
(also, it cannot have snapshots, since it would become qcow)
Ok, but this is the hypervisor view. For a guest OS this LV is normal
RAW block device. I wonder if someone test this feature and access
shared disk from many VM's at the same time?
Thanks,
Piotr