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接続の問題が原因でボリュームへのアクセスが失われました

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環境

  • FC LUNの略
  • Brocadeスイッチ
  • ONTAP 9.xのリリースを参照してください

問題

  • 接続の問題が原因で、FC LUNがホスト側でアクセスできなくなりました。
  • IO WQE 以下のように両方のノードでストレージ側のエラーが観察されました。

Tue May 09 09:00:03 -0400 [NetApp-01: fct_tpd_work_thread_0: fcp.io.status:debug]: STIO Adapter:5b IO WQE failure, Handle 0x1, Type 8, S_ID: 401xx, VPI: 275, OX_ID: 63F, Status 0x3 Ext_Status 0x16 
Tue May 09 09:00:33 -0400 [NetApp-01: fct_tpd_work_thread_0: fcp.io.status:debug]: STIO Adapter:5b IO WQE failure, Handle 0x1, Type 8, S_ID: 401xx, VPI: 275, OX_ID: 4E6, Status 0x3 Ext_Status 0x16  
Tue May 09 09:00:52 -0400 [NetApp-02: fct_tpd_work_thread_0: fcp.io.status:debug]: STIO Adapter:5b IO WQE failure, Handle 0x1, Type 8, S_ID: 401xx, VPI: 275, OX_ID: 58E, Status 0x3 Ext_Status 0x16 
Tue May 09 09:08:16 -0400 [NetApp-02: fct_tpd_work_thread_0: fcp.io.status:debug]: STIO Adapter:5b IO WQE failure, Handle 0x1, Type 8, S_ID: 401xx, VPI: 275, OX_ID: 219, Status 0x3 Ext_Status 0x1d  
Tue May 09 09:29:05 -0400 [NetApp-02: fct_tpd_work_thread_0: fcp.io.status:debug]: STIO Adapter:5b IO WQE failure, Handle 0x1, Type 8, S_ID: 401xx, VPI: 275, OX_ID: 71, Status 0x3 Ext_Status 0x2   

 

  • C3 timeout Tx ストレージ接続ポートでエラーが確認され、スイッチ側のISLポートとともにWQEエラーが報告されました。


Index Port Address  Media Speed   State     Proto
==================================================
  8   8   020800   id   N32    Online    FC  F-Port  1 N Port + 1 NPIV public 
  9   9   020900   id   N32    Online    FC  F-Port  1 N Port + 1 NPIV public 
  46  46   022e00   id   16G    Online    FC  LE E-Port  10:00:88:94:71:9d:xx:xx "SW-XX" 
  47  47   022f00   id   N16    Online    FC  LE E-Port  10:00:88:94:71:9d:yy:yy "SW-XX" (downstream)

/fabos/cliexec/porterrshow:
      frames    enc   crc   crc   too   too   bad   enc  disc  link   loss   loss   frjt   fbsy  c3timeout  pcs   uncor
    tx    rx    in   err   g_eof  shrt   long   eof    out  c3  fail   sync   sig          tx   rx   err   err
 8:   1.0g 185.7m   0    1    1    0    0    0    0    48.4k   4    0    4    0    0    0    8.5k   0    3   
 9:   4.0g   1.3g   0    5    5    0    0    0    0    64.4k   4    0    4    0    0    0    17.4k   0    5   
46:   2.1g 157.7m   0    0    0    0    0    10.5k   0    27.4k 121    1    0    0    0    26.4k   0    20.1k   0   
47:   3.7g 348.5m   0    0    0    0    0    0    0    4    0    0    0    0    0    0    0    0    0   

  • Frame timeout detected フレームをISLポートに送信できなかったことを示すerrrdumpで報告されたエラー(この場合はTxポート46)


2023/05/09-11:44:52, [AN-1014], 155073, FID 128, INFO, Switch_name, Frame timeout detected, tx port 46 rx port 8, sid 20801, did 40000, timestamp 2023-05-09 11:44:52 
2023/05/09-11:44:53, [AN-1014], 155093, FID 128, INFO, Switch_name, Frame timeout detected, tx port 46 rx port 8, sid 20801, did 40000, timestamp 2023-05-09 11:44:53 

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