2013-7-11 1:43, Itamar Heim:
On 07/10/2013 05:33 PM, Piotr Szubiakowski wrote:
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.
By using "pre-allocated" here, even for qcow on KVM? If it is
pre-allocated, there is no benefit to use qcow.
(also, it cannot have snapshots, since it would become qcow)
Why it can not have snapshots? I think qcow on the block device can also
have snapshots.
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舒明 Shu Ming
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