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客户端报告 "NFS 服务器未响应 " ,但存储端未发现问题

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Category:
ontap-9
Specialty:
nfs
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适用场景

  • ONTAP 9
  • NFS

问题描述

  • 单个客户端记录的 NFS 服务器间歇性无响应:

Sep 18 08:38:02 server kernel: [2681704.006022] nfs: server 10.xx.xx.233 not responding, still trying
Sep 18 08:41:15 server kernel: [2681896.500615] nfs: server 10.xx.xx.233 not responding, still trying
Sep 18 08:44:27 server kernel: [2682088.993327] nfs: server 10.xx.xx.233 not responding, still trying

  • 观察到速度缓慢。
  • 在问题描述时间内, ONTAP 不会报告事件日志中的任何错误。
  • PerfArchive 数据显示错误期间无 IOPS ,但延迟较低。
  • 在此期间未收集数据包跟踪。

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