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Re: [libvirt-users] how to make the volume's format to qcow2 when creating volume



On Mon, Nov 19, 2012 at 06:53:44PM +0800, zhijun liu wrote:
> hi,all
> 
> the following are files of pool and volume.
> 
> storage pool is based on logical(LVM) and iscsi,now I create volume
> specified the format to "qcow2"
> 
> *pool.xml*
> <pool type='logical'>
>   <name>pool_190</name>
>   <source>
>  <device
> path='/dev/disk/by-path/ip-192.168.0.190:3260-iscsi-iqn.2012-11.com.cloudking:server.target1-lun-1'/>
>   </source>
> <target>
>    <path>/dev/pool_190</path>
> </target>
> </pool>
> 
> *volume.xml*
> <?xml version="1.0" encoding="UTF-8" ?>
> <volume>
>      <name>volume1</name>
>      <capacity unit="GB">1</capacity>
>      <target>
>           <format type="qcow2" />
>      </target>
> </volume>
> 
> *the problmes is :when  the volume created successfully,However, the
> volume's format is 'raw'*

The use of non-raw formats is only supported for file based
storage volumes. You're using LVM, so its always creating it
raw.

Danel
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