于 2011年01月30日 06:18, Casey Link 写道:
How to create the logical pool, refer to:
http://libvirt.org/git/?p=libvirt.git;a=tree;f=tests/storagepoolxml2xmlin;h=92d08b31073ade34bc2112694219030130fc5bd1;hb=HEAD
How to create the logical volume with backing store, refer to:
http://libvirt.org/git/?p=libvirt.git;a=tree;f=tests/storagevolxml2xmlin;h=ed26441f354c5183499eae14b56e280fe36c1da6;hb=HEAD
Hi Osier,
So, I have managed to setup an LVM backed pool (koth-main), and
created volumes from this pool:
vol-create-as --pool koth-main --name koth-foo-snap --capacity 2G
vol-create-as --pool koth-main --name koth-foo --capacity 2G
--backing-vol koth-foo-snap
I then performed a virt-install, and after configuring the system
attempted s snapshot, but as you can see it still doesn't work. I get
the same error as before:
snapshot-create koth-foo
error: Requested operation is not valid: Disk '/dev/main/koth-foo'
does not support snapshotting
Sorry for the late, qemu driver only supports domain snapshotting
when the disks' driver type is "qcow2". e.g.
<disk...>
......
<driver name="qemu" type="qcow2"/>
......
</disk>
Did I miss a step?
Best,
Casey
Below is the XML for the main volume:
<volume>
<name>koth-foo</name>
<key>5er4qK-stqa-zzJn-Npbe-HOeH-aYfs-TULujB</key>
<source>
<device path='/dev/sda2'>
<extent start='417685569536' end='419833053184'/>
</device>
</source>
<capacity>2147483648</capacity>
<allocation>2147483648</allocation>
<target>
<path>/dev/main/koth-foo</path>
<permissions>
<mode>0600</mode>
<owner>0</owner>
<group>6</group>
</permissions>
</target>
<backingStore>
<path>/dev/main/koth-foo-snap</path>
<permissions>
<mode>0660</mode>
<owner>0</owner>
<group>6</group>
</permissions>
</backingStore>
</volume>
