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尝试挂载 FlexCache 路径时出现 "mount.nfs :连接超时 "

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ontap-9
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nas
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适用场景

  • ONTAP 9
  • NFSv3/ 挂载协议
  • FlexCache 卷

问题描述

  • 在 Linux 上, "mount.nfs :连接超时 " 或等效的挂载错误(实际记录的错误取决于客户端平台。)

mount -t nfs -s -o ro,intr,retrans=10,timeo=600,nfsvers=3,hard,rsize=32768,wsize=32768,tcp,noacl,port=2049,nocto sgh-cdot01-corp01:/vol/Test_FC/dester/centos7/x8675/dester_2-pic /mnt -vvv
mount.nfs: timeout set for Wed Dec 14 16:34:06 2022
mount.nfs: trying text-based options 'intr,retrans=10,timeo=600,nfsvers=3,hard,rsize=32768,wsize=32768,tcp,noacl,port=2049,nocto,sloppy,addr=10.19.185.41'
mount.nfs: prog 100005, trying vers=3, prot=6
mount.nfs: trying 10.10.131.xx prog 100005 vers 3 prot TCP port 635
mount.nfs: mount(2): Connection timed out
mount.nfs: trying text-based options 'intr,retrans=10,timeo=600,nfsvers=3,hard,rsize=32768,wsize=32768,tcp,noacl,port=2049,nocto,sloppy,addr=10.10.131.xx'
mount.nfs: prog 100005, trying vers=3, prot=6
mount.nfs: trying 10.10.131.xx prog 100005 vers 3 prot TCP port 635
mount.nfs: mount(2): Connection timed out
mount.nfs: Connection timed out

  • 尝试从 FlexCache 卷挂载特定路径时,挂载操作超时。
  • 数据包跟踪显示 NULL挂载调用已回复,但 MNT调用未回复—客户端对其请求执行 RPC 重新传输,但未收到响应(请参见以下 wic/Tshak 输出示例)。

23   0.001398 10.216.29.66 → 10.216.29.68 MOUNT     V3 NULL Call
24   0.001579 10.216.29.68 → 10.216.29.66 MOUNT     V3 NULL Reply (Call In 23)
25   0.001848 10.216.29.66 → 10.216.29.68 MOUNT     V3 NULL Call
26   0.002001 10.216.29.68 → 10.216.29.66 MOUNT     V3 NULL Reply (Call In 25)
27   0.002039 10.216.29.66 → 10.216.29.68 MOUNT     V3 MNT Call /cache_vol1/qtree/link-to-dir1
29   5.016283 10.216.29.66 → 10.216.29.68 MOUNT     [RPC retransmission of #27]V3 MNT Call /cache_vol1/qtree/link-to-dir1
31  15.032252 10.216.29.66 → 10.216.29.68 MOUNT     [RPC retransmission of #27]V3 MNT Call /cache_vol1/qtree/link-to-dir1

 

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