MetroClusterスイッチバックに失敗しました- oplockリコールがタイムアウトしました

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環境

MetroCluster
スイッチバックが中止されました
CIFS oplockが有効

問題

スイッチバックが中止されました

ClusterA::> set advanced ClusterA::*> metrocluster operation show

Failed to prepare the cluster for the switchback operation. ClusterA::Node_A1 (fatal): Unable to process the DR operation for partners (Node_B1) due to an internal error (Oplock recall timed out because of CPU overload, slow CIFS client response, or a large number of open files. Run "volume qtree oplocks -volume <vol> -qtree <tree> -vserver <name> -oplock-mode disable" for the volumes or qtrees of the participating vservers that have oplocks enabled. Retry the MetroCluster command. After the MetroCluster operation is complete, run "volume qtree oplocks -volume <vol> -qtree <tree> -vserver <name> -oplock-mode enable" to enable oplocks.).