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为什么会生成 sms.fanout.comm.snap.deleted" 警报?

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适用于

  • ONTAP 9.7 及更高版本
  • SnapMirror 同步( SM-S )和 SnapMirror 异步扇出配置,如下所示:

1. PNG

解答

  • 具有 SnapMirror 同步( SM-S )和 SnapMirror 异步关系的扇出配置可能会在 SnapMirror 源上记录以下警报:

Wed Jan 06 03:05:00 +0000 [ClusterA-01: rpl_worker_main: sms.fanout.comm.snap.deleted:alert]: SnapMirror Synchronous operation 'Update' for relationship '123456ab-1234-1234-abcd-0123456789ab' has cleaned up some of the old base Snapshot copies between the synchronous source and synchronous destination, which could result in no common Snapshot copy existing between the synchronous and asynchronous destinations.

  • 如果 ONTAP 检测到 SnapMirror 为通用快照,则会生成此警报 不会复制由 SM-S 关系创建的 扇出异步关系
  • 如果要对 SM-S 关系执行灾难恢复,则异步目标不会与 SM-S 目标具有通用快照,因此在尝试从原始 SM-S 目标建立异步关系时,会出现 " 无通用快照 " 错误
避免警报
  • 有关[1]扇出拓扑的最佳实践,请查看 TR-4832 :《使用适用于 ONTAP 9.7 的 NetApp SnapMirror 实现三数据中心灾难恢复》
  • 对异步关系使用 MirrorAllSnapshots SnapMirror 策略。这将确保 SM-S 关系创建的 SnapMirror 通用快照 将始终复制到异步目标
  • 确保异步关系更新计划的频率至少相同 作为 SM-S 的通用 Snapshot 创建计划 (默认每小时)
 
在具有 SnapMirror 同步( SM-S )关系的扇出配置中,仅支持使用 MirrorAllSnapshots SnapMirror 策略(或等效策略)的 SnapMirror 异步关系。如果您需要协助设计具有不同类型异步关系的扇出解决方案,请联系您的客户团队以获得帮助。

 

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