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升级ESXi后、LUN延迟较长、读取吞吐量增加

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适用场景

  • ONTAP 9
  • SAN
  • ESXi

问题描述

  • 在多个节点的多个LUN上观察到高LUN延迟、但未发现网络结构问题(虚线电路等)。
    • QoS工作负载统计信息下的最高延迟中心来自CPU N-blade (的“网络”列 qos statistics volume latency show)。
  • 在一个客户案例中、延迟是在将ESXi主机升级到7.0.3p后开始的、但在任何版本的ESXi上都可能发生。
  • 同时、从ESXi到ONTAP的读取请求的吞吐量也会增加、从而使网络的吞吐量达到最大。

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