クローンが含まれているため、ボリュームを削除できませんでした

環境

問題

ボリュームの削除が失敗し、「Failed to delete volume "volume_Name" because it has one or more clones」というエラーが表示されます。

::> volume delete -volume volume_src1
 
Warning: Are you sure you want to delete volume "volume_src1" in Vserver "vserver1" ? {y|n}: y
 
[Job 111] Job is queued: Delete volume_src1.
 
Error: command failed: [Job 111] Job failed: Failed to delete volume "volume_src1" because it has one or more clones.