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如何调整 VMware ESXi 的轮询 IOPS 限制

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适用于

E 系列控制器固件 8.xx

ONTAP 9.x

说明

默认情况下, VMware ESXi ( 5.x /6.x )利用循环 (RR) 路径选择策略( PSP )对使用“ NetApp ”供应商 ID / 产品 ID 从存储阵列映射的卷。此策略尝试根据传输的 I/O 数或字节数在所有活动存储路径之间平衡 I/O 负载。默认情况下、 RR 会在每 1000 个 I/O 或 10485760 字节后尝试重新平衡。

尽管不需要,但在活动存储路径可能有多个排队 I/O 的情况下调整 I/O 计数器可能会提高性能。例如,默认 I/O 计数器为 1000 时、存储路径队列中的任何 I/O 都必须等待、直到该存储路径可以为请求提供服务。将此限制修改为 1 允许其他活动存储路径为新 I/O 请求提供服务。

有关详细信息,请参见 VMware KB 2069356

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