OVM Manager backup possibility

Hello!
How to backup virtual machines using OVM Manager 3.0?
Thanks!

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    [2013-06-11 15:40:28 5335] DEBUG (OVSCommons:124) discover_hardware: ()
    [2013-06-11 15:40:28 5336] DEBUG (OVSCommons:124) discover_hardware: ()
    [2013-06-11 15:40:28 5337] DEBUG (OVSCommons:124) discover_hardware: ()
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