iscsi connections closed and I/O errors, SCSI errors, and/or path failures occur after "iscsid: Target dropping all connections" when using RHEL

Solution In Progress - Updated -

Issue

  • My iscsi connections all failed after iscsid reported "Target dropping all connections"
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)
  • I see path failures, I/O errors, and my server is unresponsive after "Target dropping all connections" from iSCSI
  • What caused the iscsi target to drop all connections?

Environment

  • Red Hat Enterprise Linux (RHEL) 5, 6, or 7
  • iscsi-initiator-utils

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