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SRAMダンプが原因でESXiホストで断続的に切断される

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環境

  • ONTAP 9
  • マルチホップBrocadeスイッチ構成
  • ESXi ホスト

問題

  • 複数のポートでSRAMが頻繁にダンプされるため、ESXiホストで切断されます。
  • EMS ログに表示される内容:
Wed Sep 20 16:26:17 +0400 [Netapp04: fct_tpd_thread_7: scsitarget.fcp.dump:debug]: FCP target SRAM dump generated for adapter 3x, fct_tpd_check_hung_commands: Command termination hung. cmd:0xfffff81e7c951b40 (state=0xa, flags=0x2,ctio_sent=2/3, RecvExAddr=0x2a71, OX_ID=0x325b, RX_ID=0xffff, SID=0x5b0d17) 
Wed Sep 20 16:26:18 +0400 [Netapp04: fct_tpd_thread_7: callhome.fcp.sram.dump:error]: Call home for FCP SRAM DUMP.
  • ONTAPポートのケーブルとSFPを交換しても、問題は修正されません。
  • SFPがスイッチとONTAPの電源が最適な状態である。
RXPower:    -0.8    dBm (827.5uW)
TXPower:    -0.1    dBm (983.4 uW)
  • Errdump logs on switch show timeouts:
2023/08/11-06:16:14, [AN-1014], 26175, FID 128, INFO, A, Frame timeout detected, tx port 23 rx port 11, sid b0b01, did 5b0d17, timestamp 2023-08-11 06:16:14 .
2023/08/11-06:16:14, [AN-1014], 26176, FID 128, INFO, A, Frame timeout detected, tx port 23 rx port 18, sid b1202, did 5b1900, timestamp 2023-08-11 06:16:14 .

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