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SnapMirror的"正常"优先级和"低"优先级有何区别?

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适用场景

ONTAP 9

问题解答

  • SnapMirror normallow 优先级与SnapMirror吞吐量无关
  • SnapMirror normallow优先级设置与SnapMirror作业执行顺序、待定操作和作业队列相关
  • SnapMirror优先级不是"优先级"、而是CPU优先级
  • 如果没有其他作业正在运行、则SnapMirror优先级不会影响单个作业
  • 如果同时有足够的作业来填满队列、则SnapMirror优先级的影响最大
  • 如果有足够的同时SnapMirror作业来填充队列、则可能会导致作业处于待定状态
  • normal优先级为的作业将在优先级为的作业之前运行 low
  • low 只有在所有已排队 norma的l优先级作业都运行之后、才会运行具有优先级的作业
  • 如果 normal low 计划同时运行和优先级作业、则将首先运行正常优先级作业

追加信息

注意: 在已知的问题描述 中、活动SnapMirror传输将报告以"低"优先级运行、即使此关系的SnapMirror策略配置为以"正常"优先级运行也是如此。此方案中的SnapMirrors实际上以"正常"优先级运行。

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