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将Windows VM上的队列深度从64更改为256、对NetApp NVMe命名空间上的队列有任何影响

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适用场景

  • NVMe/FC
  • 使用Windows VM的ESXi虚拟机管理程序。

问题解答

  • 从ONTAP 9.14.1开始、我们可以配置NVMe子系统、以确定特定主机的资源分配优先级
  • ONTAP NVMe支持优先级为"常规"和"高"的主机、并在将主机添加到子系统时可用。
  • 根据ONTAP硬件平台和主机使用的NVMe-oF传输、这些选项会转换为不同的NVMe队列计数和队列深度。
  • 因此、如果我们希望所有ESXi服务器的队列数量和队列深度都更高、则需要将这些主机的主机优先级设置为"高"、这可以在将hostnqns添加到ONTAP NVMe子系统时完成。
  • 具有默认"常规"优先级的主机具有一组有限的队列、而设置为"高"优先级的主机具有较多的队列数量和队列深度。
  • 分配了高优先级的主机将分配更大的I/O队列计数和队列深度。

追加信息

  • 默认情况下、将主机添加到子系统时、系统会为其分配常规优先级。
  • 通过支持主机优先级、可以使NVM子系统以不同的方式划分主机优先级。 

 

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