Lists all EFL epochs on a specific volume and indicates whether they are active or stopped (used).
<listEpochs/>
<listEpochs> <activeEpochs> <epoch value=" "/> </activeEpochs> <usedEpochs> <epoch value=" "/> </usedEpochs> <result value=" "> <description/> </result> </listEpochs>
Specifies an error value or 0 (for no error).
Specifies a text description of the result.