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什么是 SIDL

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cloud-volumes-ontap-cvo
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适用于

  • Cloud Volumes ONTAP (CVO)
  • BlueXP
  • ONTAP Select

回答

SIDL(Single Instance data logging)是一种 ONTAP 写入模式,可提高虚拟化环境(CVO、ONTAP select 等)上的 ONTAP 写入效率。SIDL 写入与正常 ONTAP 写入在某些关键方面有所不同:

  1. SIDL 在更新 NVLOG 之前将提交用户数据写入文件系统磁盘。
  2. SIDL 写入不会 NVLOG 用户数据。相反,它们 NVLOG 指向包含写入数据的磁盘块的标头信息。

在 CVO 系统上运行时,SIDL 可以带来实质性的好处。

例如:

  • 它从 vNVRAM 后备设备卸载了大部分 MB/s 负载。
  • 它降低了 HA 合作伙伴之间的总 MB/s 网络负载。

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