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发送到特定A节点上的Sf的NFS挂载请求超时、此节点的EMS经常显示dns.server.timed.out:error

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Category:
ontap-9
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nas
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适用场景

  • ONTAP 9
  • NFS
  • DNS

问题描述

  • 某些NFS挂载请求会发送到 特定ONTAP节点上托管的LIF、但之后挂载请求会超时
  • 显示了数据包跟踪
    • ONTAP使用回复NFSv4挂载请求NFS4ERR_DELAY
    • ONTAP不会回复或发送NFSv3挂载请求 NFS3ERR_JUKEBOX
  • 有问题的ONTAP节点上的EMS日志显示、在NFS挂载超时开始发生的大约同一天、DNS超时开始频繁发生。
    •  [node-1: mgwd: dns.server.timed.out:error]: DNS server 160.200.200.30 did not respond to vserver = svm1 within timeout interval. 
  • check-access 表示导出策略规则允许受影响的客户端主机挂载NFS
    •  ::*> check-access -vserver svm1 -volume vol1 -client-ip 172.20.60.40 -authentication-method sys -protocol nfs3 -access-type read-write (vserver export-policy check-access) Policy Policy Rule Security Path Policy Owner Owner Type Index Access Style -------------------- ---------- --------- ---------- ---- ---------- ---------- / default svm1_vol0 volume 1002 read unix /vol1 default vol1 volume 1002 read-write unix 2 entries were displayed. 

 

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