Podがボリュームを接続できず、マルチ接続エラーが発生する

環境

• NetApp Astra Trident
• iSCSIプロトコル
• RWO PVC
• NetApp ONTAP 9.x

問題

Pod can't attach a Trident volume and getting the概要of the pod for the pod：

Normal   Scheduled      xmys         default-scheduler     Successfully assigned pod1/volume1 to hostname.corporate.com
Warning  FailedAttachVolume  xmys         attachdetach-controller  Multi-Attach error for volume "pvc-xxxxxxxx-yyyy-zzzz-xxxx-xyxyxyxyxyxyxy" Volume is already exclusively attached to one node and can't be attached to another
Warning  FailedMount      10s   kubelet          Unable to attach or mount volumes: unmounted volumes=[volume1], unattached volumes=[volume1], failed to process volumes=[]: timed out waiting for the condition