Enhanced Support Facility 2.6 User's Guide

7.4.1 Overview

The duplication of the console path is achieved by including the serial port in the IOMP (I/O MultiPathing) structure according to "7.4.2 Configuration."

The IOMP feature of OS console is supported by the FJSVse package in ESF version 1.7.1 or later and FJSVsec package. This package provides the following features:

• If a hardware error occurs on a serial port while the system is running, the fjmse driver switches the console device to the secondary port automatically.
• By using the IOMP features, the system board with the broken serial port can be changed while the system is running. This feature is called "DR (Dynamic Reconfiguration)."