The section introduces available tools to help you diagnose and solve hardware-related problems.
Light path diagnostics
Use light path diagnostics to diagnose system errors quickly. See Light path diagnostics for more information.
Event logs
The event logs list the error codes and messages that are generated when an error is detected for the subsystems IMM2, POST, DSA, and the server baseboard management controller. See Event logs for more information.
Integrated management module II
The integrated management module II (IMM2) combines service processor functions, video controller, and remote presence and blue-screen capture features in a single chip. The IMM provides advanced service-processor control, monitoring, and alerting function. If an environmental condition exceeds a threshold or if a system component fails, the IMM lights LEDs to help you diagnose the problem, records the error in the IMM event log, and alerts you to the problem. Optionally, the IMM also provides a virtual presence capability for remote server management capabilities. The IMM provides remote server management through the following industry-standard interfaces:
For more information about the integrated management module II (IMM2), see Using the integrated management module, Integrated Management Module II (IMM2) error messages, and the Integrated Management Module II User's Guide at the User's Guide for Integrated Management Module II website.
IBM Dynamic System Analysis
Two editions of IBM Dynamic System Analysis (DSA) are available for diagnosing problems, DSA Portable and DSA Preboot:
DSA Portable
DSA Portable collects and analyzes system information to aid in diagnosing server problems. DSA Portable runs on the server operating system and collects the following information about the server:
For additional information, see IBM Dynamic System Analysis and DSA diagnostic test results.
DSA Preboot
DSA Preboot diagnostic program is stored in the integrated USB memory on the server. DSA Preboot collects and analyzes system information to aid in diagnosing server problems, as well as offering a rich set of diagnostic tests of the major components of the server. DSA Preboot collects the following information about the server:
DSA Preboot also provides diagnostics for the following system components (when they are installed):
See Running DSA Preboot diagnostic programs for more information on running the DSA Preboot program on the server.
Troubleshooting by symptom
These tables list problem symptoms and actions to correct the problems. See Troubleshooting by symptom for more information.