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
2013-7-11 1:43, Itamar Heim: 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 Open Virtualization Engineerning; CSTL, IBM Corp. Tel: 86-10-82451626 Tieline: 9051626 E-mail: shuming@cn.ibm.com or shuming@linux.vnet.ibm.com Address: 3/F Ring Building, ZhongGuanCun Software Park, Haidian District, Beijing 100193, PRC