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由于PCIe错误、性能问题描述

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适用场景

ONTAP 9

问题描述

  • 托管在NetApp LN/Volume上的应用程序报告运行时运行时比较减载。
  • 此延迟会在QoS统计信息命令输出的网络层中列出。
cluster::> qos statistics volume latency show -volume volume1 -vserver svm1 Workload ID Latency Network Cluster Data Disk QoS NVRAM Cloud ----------- ------ ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- volume1 17882 20.51ms 20.51ms 0ms 0ms 0ms 0ms 0ms 0ms volume1 17882 15.00ms 15.00ms 0ms 0ms 0ms 0ms 0ms 0ms volume1 17882 16.00ms 16.00ms 0ms 0ms 0ms 0ms 0ms 0ms
  • FC端口的RX/TX值处于此范围内。
  • 交换机日志中未发现任何错误。
  • 事件日志列出了主机登录到存储的某个端口的PCIe错误:
[Cluster1-01: PCI Link: pcie.stealth.link.errors:debug]: params: {'pcie_link_errors': 'performance is not optimal for PLX PCIE 8732 switch in slot 1 on Controller. Br[8732](4,0,0) in slot 1: LinkCap(MaxLkSp(3),MaxLkWd(16),ASPM(2),L0(6),L1(2),SurpDn,DLAct,Port(4)), LinkCap(MaxLkSp(3),MaxLkWd(16),ASPM(2),L0(6),L1(2),Port(0)), LinkStatus(LkSp(3),LkWd(2),DLAct).

 

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