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VAAI:ONTAP 使用哪些副本卸载引擎?

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适用场景

  • 适用于阵列集成的VMware vSphere API (VAAI)
  • NetApp ONTAP

问题解答

Data ONTAP使用三个副本卸载引擎(全部属于NFS副本管理器服务):

SCE (称为SisClone或系统持续工程引擎)

  • 此引擎仅用于卷内(即同一卷内)的副本
  • SCE利用WACL的SiSClone技术复制对现有块的引用。  也就是说、系统会创建指向现有块的指针、而不是复制物理块本身。
  • 要使用SCE、需要FlexClone许可证
  • 要使用SCE、FlexVol需要启用sis:
    • sis on -volume <vol_name> -vserver <SVM_name>

BCE (或块复制引擎)

  • 此引擎用于卷内和卷间副本
  • 此引擎会为数据执行块对块的副本
  • 如果无法使用SCE引擎创建卷内副本、则改用BCE
  • 不能在物理节点之间使用BCE

SpinNP复制引擎(也称为SpinCE)

  • 此引擎用于在物理节点之间创建卷副本
  • 此引擎会为数据执行块对块的副本

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