Why do I see I/O errors and connection failures for my iSCSI devices after a 'ping timeout' is reported in RHEL?

Solution Verified - Updated -


  • I see iSCSI errors in /var/log/messages

    iscsid: connection1:0: ping timeout of 5 secs expired, recv timeout 5, last rx 4363801791, last ping 4363806791, now 4363811791  
    iscsid: Kernel reported iSCSI connection 1:0 error (1011) state (3)
  • My application receives I/O errors when iSCSI ping timeouts occur in the logs


  • Red Hat Enterprise Linux (RHEL) 5.
  • Red Hat Enterprise Linux (RHEL) 6.
  • Red Hat Enterprise Linux (RHEL) 7.
  • Red Hat Enterprise Linux (RHEL) 8.
  • iscsi-intiatior-utils.

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