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使用《QoS解决指南》时、延迟突然增加

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适用场景

  • ONTAP 9
  • 服务质量 (QoS)
  • NAS协议—NFS和CIFS
  • SAN协议—FCP和iSCSI

问题描述

  • 使用QoS策略时、QoS延迟将突然增加
  • 网络免除利用率( 协议操作的CPU处理 ) 将增加。
  • 由于饱和网络免除处理 域、每当达到QoS最大限制时、用户可能会报告间歇性速度慢/延迟问题描述。 
    • 集群互连延迟
    • 网络处理延迟、也称为CPU N-Blade或网络免除(Nwk_Exmpt)
  • 在客户端上执行任何测试(如运行dd命令)都会报告由于工作负载本身突发而导致的高延迟。 

 

 

 

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