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为什么我的AFF A70的初始磁盘配置设置为特定模式

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适用场景

  • AFF A70
  • AFF A800
  • ONTAP 9
  • 初始设置和磁盘配置

问题解答

  • AFF A70系统设计有一个背板、该背板分为四个象限、每个象限连接到主板上四个PCI交换机中的一个。
  • 初始磁盘配置经过优化、可在这些象限之间均匀分布工作负载、从而确保最佳性能。
  • 下面是详细的细分:
    • 磁盘0-11: 连接到PCI交换机1
    • 磁盘12-23: 连接到PCI交换机2
    • 磁盘24-35: 连接到PCI交换机3
    • 磁盘36-47: 连接到PCI交换机4
  • 当前配置会将工作负载分布在所有四个象限中、这有助于优化性能。

  • 按照示例中的建议更改磁盘配置以将所有磁盘分组在一起会将负载集中在PCI交换机1和2上、而PCI交换机3和4则未得到充分利用。

  • 这种不平衡可能导致性能下降、因此不建议这样做。

当前配置示例:

0, 1, 2, x, x, x, 6, 7, x, x, x, x, 12, 13, 14, x, x, x, 18, 19

24, 25, 26, x, x, x, 30, 31, x, x, x, x, 36, 37, 38, x, x, x, 42, 43

建议的配置(不建议使用):

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, x, x, x, x

x, x, x, x, x, x, x, x, x, x, x, x, x, x, x, x, x, x, x, x, x, x, x, x

  • 为了获得最佳性能、建议遵循初始配置并根据Hardware Universe文档中提供的准则添加磁盘。
  • 这样可以确保工作负载在所有PCI交换机之间保持平衡。

 

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