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如何在具有不同压缩类型的卷之间启用 SnapMirror 存储效率

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适用场景

  • ONTAP 9.3及更高版本
  • SnapMirror
  • SnapVault
  • 存储效率
  • 具有存储效率的逻辑复制(Logical Replication with Storage效率、LRSE)

问题描述

  •   只有在 目标卷上的所有附加数据压缩均已禁用时、SnapMirror type-XDP才会保留源卷的存储效率。
  • 如果在SnapMirror目标上启用了数据压缩、则源存储效率节省的空间不会通过网络保留。
  • 在ONTAP 9.3及更高版本中、在SnapMirror目标上禁用数据压缩后、未来的SnapMirror传输将自动切换到高效存储的传输、但前提是源和目标之间的数据压缩类型相同(自适应或 二级)。
  • 如果数据压缩类型不同(例如、源采用自适应数据压缩、而目标采用二级数据压缩)、则在目标上禁用数据压缩将不允许高效存储传输、必须重新设置关系基线。
  • 有关详细信息,请参见 SnapMirror存储效率配置和行为
  • 此知识库文章介绍了在这种情况下避免冗长的基线重新设定的步骤。
  • 这些步骤需要使用ONTAP 9.3或更高版本。
 

 

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