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连接 FC 的虚拟磁盘的碎片整理是否可以提高性能?

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ontap-9
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适用于

  • ONTAP 9
  • Fibre Channel(光纤通道)(FC)
  • 虚拟磁盘(VMDK)
  • 逻辑单元号 (LUN)
  • 带有 NTFS 文件系统的 Windows 操作系统

问题解答

否,虚拟磁盘(如 VMDK)或 LUN 的碎片整理不会提高存储端的性能。
原因如下:
  • 块管理:存储系统在块级别管理数据。即使文件在 Windows 文件系统上显示为连续的(例如,NTFS),底层存储仍可能具有分散在不同物理位置的块。
  • 碎片整理影响:在 Windows 上运行碎片整理只会重新组织文件系统的数据视图。它不会更改存储系统上的物理块排列。
  • 性能注意事项:碎片整理可能会暂时增加 I/O 负载,这可能会导致短期性能下降而不是改善。
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