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ONTAP FC クライアントはストレージ LUN にアクセスできません

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環境

  • ONTAP FCP

問題

  • FCホスト/クライアントはLUNにアクセスできませんが、他のホストはアクセスできます
  • アクセス権を持つホストはパフォーマンスの問題の影響を受けます
  • Microsoft Hyper-VシステムログにイベントID 153が報告される
  • Microsoft Hyper-Vデバイスマネージャーは、ストレージアダプターのHBAポートが不明な状態であると報告し、「このデバイスは正常に機能していません」と表示されます
  • ONTAPイベントログは数分ごとにFC IO error state=5と AEN 0x8048 errorを報告します
  • ONTAP ASUPとモニタリングは、FCポートSFP送信光パワーが半分に低下したことを示しています
ONTAPイベント ログの例:
Cluster::*> event log show -message-name *fcp*
Time Node Severity Event
------------------- ---------------- ------------- ---------------------------
fcp.io.status: STIO Adapter:0h AEN 0x8048 (RECV_ERROR) MboxStatus1 0xfffe MboxStatus2 0x2
fcp.io.status: STIO Adapter:0h, found hung cmd:0xfffff808f9339380(state=5, flags=0x0, ctio_sent=1/1,RecvExAddr=0x125a30, OX_ID=0x6a7, RX_ID=0xffff,SID=0x10200, Cmd[2A], req_q_free:69)
fcp.io.status: STIO Adapter:0h, found hung cmd:0xfffff808f92d4250(state=5, flags=0x0, ctio_sent=1/1,RecvExAddr=0x128ac0, OX_ID=0x24f, RX_ID=0xffff,SID=0x10200, Cmd[2A], req_q_free:8123)
fcp.io.status: STIO Adapter:0h AEN 0x8048 (RECV_ERROR) MboxStatus1 0xfffe MboxStatus2 0x2
fcp.io.status: STIO Adapter:0h, found hung cmd:0xfffff808f92d4250(state=5, flags=0x0, ctio_sent=1/1,RecvExAddr=0x128ac0, OX_ID=0x24f, RX_ID=0xffff,SID=0x10200, Cmd[2A], req_q_free:8123)
fcp.io.status: STIO Adapter:0h AEN 0x8048 (RECV_ERROR) MboxStatus1 0xfffe MboxStatus2 0x2
fcp.io.status: STIO Adapter:0h, found hung cmd:0xfffff808f9339380(state=5, flags=0x0, ctio_sent=1/1,RecvExAddr=0x125a30, OX_ID=0x6a7, RX_ID=0xffff,SID=0x10200, Cmd[2A], req_q_free:69)
fcp.io.status: STIO Adapter:0h AEN 0x8048 (RECV_ERROR) MboxStatus1 0xfffe MboxStatus2 0x2
fcp.io.status: STIO Adapter:0h, found hung cmd:0xfffff808f91e4340(state=5, flags=0x0, ctio_sent=1/1,RecvExAddr=0x121b60, OX_ID=0x1c6, RX_ID=0xffff,SID=0x10200, Cmd[2A], req_q_free:7532)
 
FCP アダプタの例:
Cluster::*>network fcp adapter show -node <node_name> -fields sfp-rx-power, sfp-tx-power, switch-port
Rx Power: 553.5 (uWatts)
Tx Power: 215.8 (uWatts)
Cluster::*> network fcp adapter show -node <node_name> -adapter 0h
Adapter: 0h
Description: Fibre Channel Target Adapter 0h (QLogic 8324 (8362), rev. 2, 16G)
Received Optical Power: 553.5 (uWatts)
SFP Transmitted Optical Power: 215.8 (uWatts)

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