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サーバIPの重複が原因でESXiホストのiSCSIデータストアパスが停止しています

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ontap-9
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環境

  • ONTAP 9
  • iSCSI
  • VMware ESXi

問題

  • ストレージデバイスへのパスの冗長性が低下しました vobd.log 。ESXiサポートバンドルにログインしています:
[esx.problem.storage.redundancy.degraded] Path redundancy to storage device naa.600a09803831434e6d2451365350636d degraded. Path vmhba64:C2:T0:L2 is down. Affected datastores: "VMFS_PROD".
[esx.problem.storage.redundancy.degraded] Path redundancy to storage device naa.600a09803831434e6d2451365350636d degraded. Path vmhba64:C4:T0:L2 is down. Affected datastores: "VMFS_PROD".
[esx.problem.storage.redundancy.degraded] Path redundancy to storage device naa.600a09803831434e6d2451365350636d degraded. Path vmhba64:C6:T0:L2 is down. Affected datastores: "VMFS_PROD".
  • ESXiのサポートバンドルでは esxcfg-mpath_-b.txt 、データストアへの一部のパスがDeadとマークされています。
naa.600a09803831434e6d2451365350636d : NETAPP iSCSI Disk (naa.600a09803831434e6d2451365350636d)
  vmhba64:C1:T0:L2 LUN:2 state:active iscsi Adapter: iqn.1992-01.com.cisco:esxiserver  Target: IQN=iqn.1992-08.com.netapp:sn.15ef1d64094811eb824100a0984f2e2c:vs.7 Alias= Session=00023d000018 PortalTag=1043
  vmhba64:C2:T0:L2 LUN:2 state:dead iscsi Adapter: Unavailable Target: Unavailable
  vmhba64:C11:T0:L2 LUN:2 state:active iscsi Adapter: iqn.1992-01.com.cisco:esxiserver  Target: IQN=iqn.1992-08.com.netapp:sn.15ef1d64094811eb824100a0984f2e2c:vs.7 Alias= Session=00023d000012 PortalTag=1037
  vmhba64:C4:T0:L2 LUN:2 state:dead iscsi Adapter: Unavailable Target: Unavailable
  vmhba64:C6:T0:L2 LUN:2 state:dead iscsi Adapter: Unavailable Target: Unavailable
  vmhba64:C9:T0:L2 LUN:2 state:active iscsi Adapter: iqn.1992-01.com.cisco:esxiserver  Target: IQN=iqn.1992-08.com.netapp:sn.15ef1d64094811eb824100a0984f2e2c:vs.7 Alias= Session=00023d000014 PortalTag=1038
  • C2C4C6 前述のように、影響を受けるチャネルは すべて同じvmkernelインターフェイスとIPアドレスにリンクされていることに注意してください。
  • 同じホスト上の複数のLUNが影響を受ける
  • 他のホストでは、LUNにパスの問題はありません。
  • 再スキャンまたはホストのリブート時に、パスが 数分間アクティブになり、その後再び無効になる
  • NetApp EMSで、同じIPアドレスからの新しいiSCSIセッションが表示されますが、IQNが異なります。
iscsi.notice: ISCSI: New session from initiator iqn.1992-01.com.cisco:esxiserver at IP addr 10.0.0.1
iscsi.notice: ISCSI: New session from initiator iqn.1988-12.com.linux:linuxserver at IP addr 10.0.0.1
 

 

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