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VAAI:ONTAP 使用什么副本卸载引擎?

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适用于

  • VMware vSphere 阵列集成 API (VAAI)
  • NetApp ONTAP

问题解答

Data ONTAP 使用三个副本卸载引擎(均为 NFS 副本管理器服务的组成部分):

SCE(称为 SisClone 或系统连续工程引擎)

  • 此引擎仅用于卷内(即在同一卷内)复制
  • SCE 利用 WAFL 的 SiSClone 技术来复制对现有块的引用。  换句话说,创建指向现有块的指针,而不是复制物理块本身。
  • 需要 FlexClone 许可证才能使用 SCE
  • 在使用 SCE 之前需要为 flexvol 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复制
  • 此引擎执行数据的逐块复制
  • 如果 SCE 引擎无法用于卷内复制,则使用 BCE
  • BCE 无法在物理节点之间使用

SpinNP 复制引擎(也称为 SpinCE)

  • 此引擎用于跨物理节点的卷复制
  • 此引擎执行数据的逐块复制

追加信息

additionalInformation_text

 

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