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RHEL を使用している場合に "iscsid:Target dropping all connections" の後に iscsi 接続が切断され、I/O エラー、SCSI エラー、パスの問題が発生する

Solution In Progress - Updated -

Issue

  • iscsid が "Target dropping all connections" と報告した後に iscsi 接続がすべて失敗します。
Sep 19 13:13:31 example iscsid: Target dropping all connections, reconnect min 0 max 0
Sep 19 13:13:31 example iscsid: Target dropping all connections, reconnect min 0 max 0
Sep 19 13:13:31 example iscsid: Kernel reported iSCSI connection 2:0 error (1020 - ISCSI_ERR_TCP_CONN_CLOSE: TCP connection closed) state (3)
Sep 19 13:13:31 example iscsid: Kernel reported iSCSI connection 1:0 error (1020 - ISCSI_ERR_TCP_CONN_CLOSE: TCP connection closed) state (3)
Sep 19 13:13:31 example iscsid: connect to 10.32.48.16:3260 failed (Connection refused)
Sep 19 13:13:31 example iscsid: connect to 10.32.32.41:3260 failed (Connection refused)
Sep 19 13:13:31 example iscsid: Kernel reported iSCSI connection 1:0 error (1019 - ISCSI_ERR_XMIT_FAILED: Transmission of iSCSI packet failed) state (1)
  • iSCSI から "Target dropping all connections" が発生したあとにパスの問題、I/O エラーが発生し、サーバーが応答しなくなります。
  • iscsi ターゲットがすべての接続を切断した原因は何ですか?

Environment

  • Red Hat Enterprise Linux (RHEL) 5、6、または 7
  • iscsi-initiator-utils

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