How do I decode ISCSI error codes and error states such as "iSCSI connection 1:0 error (1xxx) state (x)"?

Solution Unverified - Updated -

Issue

  • How do I decode ISCSI error codes and error states?
  • What do these ISCSI error messages mean?
kernel: connection1:0: detected conn error (1011)
kernel: connection1:0: detected conn error (1019)
Kernel reported iSCSI connection 1:0 error (1011) state (3)
Kernel reported iSCSI connection 1:0 error (1019) state (1)

Environment

  • Red Hat Enterprise Linux 9
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 5
  • ISCSI

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