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Data transfer from linux SMB client to storage system occasionally fails

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125
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0
Category:
fas-systems
Specialty:
nas
Last Updated:

Applies to

  • ONTAP 9
  • Server Message Block(SMB)
  • Linux SMB client

Issue

  • Data transfer from linux SMB client to storage system occasionally fails
  • Data packet with Seq=943881206 from client failed to reach storage system.
  • Storage side reset TCP connection after multiple PSH,ACK TCP retransmission
11751   2022-12-28 14:57:12.054314   0.000013   Client_IP  53974   Storage_IP  445   1514   TCP   53974 → 445 [ACK] Seq=943878310 Ack=4031514344 Win=12860 Len=1448 TSval=2002445162 TSecr=571339913 [TCP segment of a reassembled PDU]
11752   2022-12-28 14:57:12.054319   0.000005   Client_IP  53974   Storage_IP  445   1514   TCP   53974 → 445 [ACK] Seq=943879758 Ack=4031514344 Win=12860 Len=1448 TSval=2002445162 TSecr=571339913 [TCP segment of a reassembled PDU]
11753   2022-12-28 14:57:12.054333   0.000014   Storage_IP  445   Client_IP  53974   66   TCP   445 → 53974 [ACK] Seq=4031514497 Ack=943881206 Win=2277 Len=0 TSval=571339919 TSecr=2002445162
11754   2022-12-28 14:57:12.060671   0.006338   Storage_IP  445   Client_IP  53974   117   SMB   Write AndX Response, 65536 bytes
11755   2022-12-28 14:57:12.283350   0.222679   Storage_IP  445   Client_IP  53974   270   TCP   [TCP Retransmission] 445 → 53974 [PSH, ACK] Seq=4031514344 Ack=943881206 Win=2305 Len=204 TSval=571340148 TSecr=2002445162
11756   2022-12-28 14:57:12.543341   0.259991   Storage_IP  445   Client_IP  53974   270   TCP   [TCP Retransmission] 445 → 53974 [PSH, ACK] Seq=4031514344 Ack=943881206 Win=2305 Len=204 TSval=571340408 TSecr=2002445162
11757   2022-12-28 14:57:12.863343   0.320002   Storage_IP  445   Client_IP  53974   270   TCP   [TCP Retransmission] 445 → 53974 [PSH, ACK] Seq=4031514344 Ack=943881206 Win=2305 Len=204 TSval=571340728 TSecr=2002445162
11758   2022-12-28 14:57:13.303343   0.440000   Storage_IP  445   Client_IP  53974   270   TCP   [TCP Retransmission] 445 → 53974 [PSH, ACK] Seq=4031514344 Ack=943881206 Win=2305 Len=204 TSval=571341168 TSecr=2002445162
11759   2022-12-28 14:57:13.983339   0.679996   Storage_IP  445   Client_IP  53974   270   TCP   [TCP Retransmission] 445 → 53974 [PSH, ACK] Seq=4031514344 Ack=943881206 Win=2305 Len=204 TSval=571341848 TSecr=2002445162
11760   2022-12-28 14:57:15.143322   1.159983   Storage_IP  445   Client_IP  53974   270   TCP   [TCP Retransmission] 445 → 53974 [PSH, ACK] Seq=4031514344 Ack=943881206 Win=2305 Len=204 TSval=571343008 TSecr=2002445162
11761   2022-12-28 14:57:17.263309   2.119987   Storage_IP  445   Client_IP  53974   270   TCP   [TCP Retransmission] 445 → 53974 [PSH, ACK] Seq=4031514344 Ack=943881206 Win=2305 Len=204 TSval=571345128 TSecr=2002445162
11762   2022-12-28 14:57:21.303251   4.039942   Storage_IP  445   Client_IP  53974   270   TCP   [TCP Retransmission] 445 → 53974 [PSH, ACK] Seq=4031514344 Ack=943881206 Win=2305 Len=204 TSval=571349168 TSecr=2002445162
11763   2022-12-28 14:57:29.183164   7.879913   Storage_IP  445   Client_IP  53974   270   TCP   [TCP Retransmission] 445 → 53974 [PSH, ACK] Seq=4031514344 Ack=943881206 Win=2305 Len=204 TSval=571357048 TSecr=2002445162
11764   2022-12-28 14:57:44.743496   15.560332   Storage_IP  445   Client_IP  53974   270   TCP   [TCP Retransmission] 445 → 53974 [PSH, ACK] Seq=4031514344 Ack=943881206 Win=2305 Len=204 TSval=571372608 TSecr=2002445162
11765   2022-12-28 14:58:00.303316   15.559820   Storage_IP  445   Client_IP  53974   270   TCP   [TCP Retransmission] 445 → 53974 [PSH, ACK] Seq=4031514344 Ack=943881206 Win=2305 Len=204 TSval=571388168 TSecr=2002445162
11766   2022-12-28 14:58:15.863143   15.559827   Storage_IP  445   Client_IP  53974   270   TCP   [TCP Retransmission] 445 → 53974 [PSH, ACK] Seq=4031514344 Ack=943881206 Win=2305 Len=204 TSval=571403728 TSecr=2002445162
11767   2022-12-28 14:58:31.430959   15.567816   Storage_IP  445   Client_IP  53974   66   TCP   445 → 53974 [RST, ACK] Seq=4031514548 Ack=943881206 Win=2305 Len=0 TSval=571419295 TSecr=2002445162

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