ETOS Error Diagnosis

This document covers Chapter 8 of the ETOS system documentation, detailing critical system management and troubleshooting procedures. It includes instructions for adding and removing terminals using the TTYSET program, disk error diagnosis for RK05 and System Industries drives, file system structure and maintenance, and procedures for disaster recovery after system crashes. Furthermore, it provides detailed information on system software maintenance, including the usage of Software Maintenance Reports (SMRs), optional and mandatory patches, and technical summary letters for system updates.