无法删除快照、并出现错误

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适用场景

ONTAP 9
SnapMirror
在级联环境的集群A (9.8)上手动创建Snapshot：(A->B->C)
然后、同一个快照将传输到集群B (9.8)、并使用该快照创建一个新卷、然后传输到集群C (9.13)。
将级联设置更改为扇出(A->B & A->C)、因为A和C具有相同的通用快照。

问题描述

即使SnapMirror传输已完成、也无法删除集群A上的快照并显示以下错误：

::*> snapshot delete -vserver <vservername> -volume <volname> -snapshot <snapshotname> Error: command failed: This Snapshot copy is currently used as a reference Snapshot copy by .

快照详细信息显示快照属于SnapMirror关系：

::*> snapshot show -vserver <vservername> -volume <volname> -snapshot <snapshotname>

Vserver: <vservername> Volume: <volname> Snapshot: <snapshotname> Snapshot Busy: false Physical Snap ID: 525 Logical Snap ID: 525 Database Record Owner: snapmirrorDP.a91be97099eeeb11b603d039ea4987c5_2159856287.nonSMDstOwned Snapshot Tags: VOPL_owner_snapmirrorDP.a91be97099eeeb11b603d039ea4987c5_2159856287.nonSMDstOwned=snapmirror

如果没有所有者拥有快照、则可以稍后删除该快照：

::*> snapshot show -vserver <vservername> -volume <volname> -snapshot <snapshotname> Snapshot Busy: false Physical Snap ID: 525 Logical Snap ID: 525 Database Record Owner: - Snapshot Tags: -

::*> snapshot delete -vserver <vservername> -volume <volname> -snapshot <snapshotname> Warning: Deleting a Snapshot copy permanently removes data that is stored only in that Snapshot copy. Are you sure you want to delete Snapshot copy "<snapshotname>" for volume "<volname>" in Vserver "<vservername>" ? {y|n}: