Hi
I have a question:
I used qemu-img create a rbd disk. and attach it to a vm.
then I format the disk as ext3 and mount the disk in vm.
After above steps,
I dd a 1G file to the rbd disk in vm. then remove the disk,
and dd a 1G file again, then remove it. do this several times.
I use `watch ceph -s` during dd operation and found the used space in ceph
cluster is always increase,
and not found decrease.
The above condition make me confuse, Is there any one could kindly explan why
this happened , is there somthing I miss ?
additional:
The qemu and libvirt version I use is :
Compiled against library: libvirt 0.10.2
Using library: libvirt 0.10.2
Using API: QEMU 0.10.2
Running hypervisor: QEMU 0.12.1
ceph-0.72.2-0.el6.x86_64
qemu-img-0.12.1.2-2.415.el6.3ceph.x86_64
qemu-kvm-tools-0.12.1.2-2.415.el6.3ceph.x86_64
--------------
lyz_pro
2014-01-10
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