VAXft Systems

This maintenance guide provides comprehensive documentation for the VAXft fault-tolerant systems. It covers:

• Diagnostics: Detailed information on using ROM-based diagnostics (RBDs) to verify system integrity and isolate faults, including power-on tests, interactive diagnostics, and the diagnostic/utility protocol (DUP).
• Errors and Error Analysis: Instructions on how the VAXft system detects errors and how to interpret error logs from various drivers (EF, EP, PW, CM, MEMERR) and the WAN module.
• Troubleshooting: Maintenance strategies, fault-handling flowcharts, and specific troubleshooting procedures for system cabinets and components.
• Removal and Replacement Procedures: Step-by-step instructions for replacing field replaceable units (FRUs) for various VAXft models (110, 310, 410, 610, and 612), including logic modules, power supplies, fans, backplanes, and peripheral storage drives.
• Managing Integrated Storage Elements (ISEs): Guidelines for managing storage elements, including unit number assignment, warm swapping (for applicable models), and setting device parameters using the PARAMS utility.