Trident 无法从后端删除快照，从而导致 PVC 在终止时挂起

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Category:: trident-kubernetes

Specialty:: snapx

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适用场景

（ Astra ）适用于 Kubernetes /OpenShift 的 Trident

问题描述

Trident 尝试删除 PV 卷上的快照以删除该卷时出现以下错误：

time="DATE_TIME" level=info msg="Determined topology labels for node: map[]" node=K8S_NODE_N requestID=REQ_UUID requestSource=REST
 time="DATE_TIME" level=error msg="Could not begin splitting clone from snapshot."
     cloneVolumeName=CLONED_VOL_PVC_NAME
     error="error splitting clone: API status: failed,
     Reason: This volume cannot be split as it is configured for protection using Vserver level snapmirror.
         Change the protection type using \"volume modify\" command to make it unprotected., Code: 13001"
     parentVolumeName=ORIGINAL_VOL_PVC_NAME requestID=REQ_UUID
     requestSource=CSI   snapshotName=snapshot-UUID
 time="DATE_TIME" level=error msg="Unable to delete snapshot from backend." backend=BACKEND_NAME
     error="snapshot snapshot-UUID backing volume PREFIX_ORIGINAL_PVC_NAME is busy" requestID=REQ_UUID
     requestSource=CSI snapshot=snapshot-UUID   volume=ORIGINAL_PVC_NAME