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アダプタがタイムアウトしてLUNが切断されています

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Category:
ontap-9
Specialty:
san
Last Updated:

環境

問題

  • Fabric Name Server ManagerへのLIF登録 NS Registration Done」でない、タイムアウトが表示されるか失敗することがある

net int show -vserver * -data-protocol fcp -fields status-oper,status-extended

  • リブート後にホストでLUNが失われる
  • 新しいFC LIFが作成されてもoperational status up
  • ONTAPでテイクオーバー(TO)/ギブバック(GB)が完了するまで、ホストはLUNに接続できない
  • ONTAPのアップグレード後にLUNがホストから切断される
  • ホストをリブートしても問題が解決されない
  • イニシエータが   not logged in 状態を報告

A22xxxG1::*> igroup show COKHCH1xx10 -v
        Vserver Name: sxx0
        Igroup Name: COKHCxxL10
          Protocol: mixed
          OS Type: vmware
   Portset Binding Igroup: -
         Initiators: 50:0x:0x:00:0x:cx:7e:2x
               50:0x:0x:00:0x:cx:7e:2x
       Child Igroups: -
        Igroup UUID: c5ec904e-18xx-11ed-bbxx-d039ea903bxx
            ALUA: true
        Initiators: 50:0x:0x:00:0x:cx:7e:2x (not logged in)
               50:0x:0x:00:0x:cx:7e:2x (logged in)
        Vserver UUID: 2ef579xx-18b5-11xx-bbxx-d039ea903bxx
      ...
        Igroup Comment:

  • ONTAPの複数のアダプタ がタイムアウトになり 、複数のホストへの接続が切断される
例:
cluster01::> network fcp adapter show -node node1 -adapter Xa
Error: show failed: Timeout while getting fabric information
cluster01::> network fcp adapter show -node node01 -adapter Xb
Error: show failed: Timeout while getting fabric information
  • MGWD.log 観察されたタイムアウトメッセージ:

例:[kern_mgwd:info:2548] 0x83771bf00: 0: ERR: SAN::FCP::ADAPTER_KERNEL: src/tables/san/fcp_adapter_internal.cc:get_imp:95 returning: 418/24 - Timeout while getting fabric information
[kern_mgwd:info:2548] 0x83771bf00: 0: ERR: SAN::FCP::ADAPTER: src/tables/san/fcp_adapter.cc:get_imp:719 returning: 418/24 - Timeout while getting fabric information
[kern_mgwd:info:2548] 0x83771bf00: 0: ERR: NET::VIF::SAN: src/tables/san/net_vif_san.cc:populateFcpPortmap:991 Failed getting the FCP port on node netapp01 for lif lif01: Timeout while getting fabric information

  • ONTAPからのダウン/アップポートは一時的に解決するが、問題は1~2時間後に戻る
  • スイッチ側のダウン/アップポートが解決しない

 

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