SVM DR関係の更新または再同期が失敗し、エラーが表示される：ボリュームに共通のSnapshotコピーが見つかりません

環境

• ONTAP 9
• SnapMirror
• SVM DR

問題

• 更新/再同期を試みてもSVM DR SnapMirror関係の確立に失敗
• SnapMirrorで共通のSnapshotコピーが見つからないと報告されます： 

Transfer for volume "<volume>" failed. Reason: No common Snapshot copy found between <SVM>:<volume> and <SVM-DR>:<volume>. Delete the volume using the (privilege: advanced) "volume delete -force" command. Then, perform a SnapMirror resync using the "snapmirror resync" command. Execute "snapmirror show -destination-vserver <SVM-DR> -fields last-transfer-error,unhealthy-reason -expand" to check if the constituent volumes have encountered errors.

• 場合によっては、デスティネーション ボリュームを削除できないことがあります：
  例：

cluster_dst::*> set advanced

cluster_dst::*> volume delete -vserver SVM1 -volume volume1 -force true 
Error: command failed: Volume volume1 in Vserver SVM1 must be offline to be deleted. 
cluster_dst::*> volume offline -vserver SVM1 -volume volume1 -force true 
Warning: Forcing offline volume volume1 in Vserver SVM1 can potentially disrupt access to files in other volumes. 
Do you want to continue? {y|n}: y
vol offline: Error off lining volume "SVM1:volume1". Error while deleting junction.