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SnapMirror如何处理扩展的压缩数据？

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适用场景

  • ONTAP 9.5 及更高版本
  • SnapMirror

问题解答

  • 扩展的压缩数据是AFF 或现代FAS 平台、ONTAP 9.5或更高版本、应用程序IO大小为8K的自适应数据压缩以及数据缩减的组合
  • 如果源卷使用扩展压缩数据、则目标卷必须运行ONTAP 9.5或更高版本、SnapMirror才能从源卷中保持重复数据删除存储效率节省、而不管目标卷的存储效率设置如何
    • 如果目标运行的是ONTAP 9.4或更早版本、则源上的重复数据删除存储效率节省量将丢失。有关详细信息、请参见错误1277896
    • 可以在目标卷上启用重复数据删除、以重新获得任何丢失的节省
  • 由于扩展的压缩数据包括自适应数据压缩、因此在SnapMirror目标卷上启用将导致SnapMirror无法保持源的重复数据删除节省量

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