Troubleshooting And Problem Solving; Overview; Initial Start-Up Problems; Faulty Power Cords - Lenovo ThinkSystem DS Series Hardware Installation And Maintenance Manual

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Troubleshooting and problem solving

These procedures are intended to be used only during initial configuration, for the purpose of verifying that
hardware setup is successful. They are not intended to be used as troubleshooting procedures for configured
systems using production data and I/O.
NOTE: For additional information, navigate to support.lenovo.com. In the All Products field, search for your
ThinkSystem product by typing the name (e.g., DS6200).

Overview

The enclosure system includes a Storage Enclosure Processor (SEP) and associated monitoring and control logic to
enable it to diagnose problems with the enclosure's power, cooling, and drive systems. Management interfaces
allow for provisioning, monitoring, and managing the storage system.
IMPORTANT: See

Initial start-up problems

Faulty power cords

Check that you have correctly cabled the system. Contact your supplier for replacements if:
•
Power cables are missing or damaged.
• Plugs are incorrect.
•
Power cables are too short.

Computer does not recognize the enclosure system

1. Verify that the interface cables from the enclosure to the host computer are fitted correctly.
2. For 2U enclosures, verify that the LEDs on all installed drive carrier modules are On (green). For 5U84
enclosures, verify that the DDIC Drive Fault LED is not lit (amber).
3. Verify that the drive carrier modules have been correctly installed.
4. Check any visible SAS indicators (RBOD, EBOD, and HBA).
5. Check HBA BIOS for SAS target visibility.
6. Verify that the operating system driver has been installed correctly.
NOTE: If the enclosure fails initialization, see

LEDs

LED colors are used consistently throughout the enclosure and its components for indicating status:
• Green: good or positive indication
• Blinking green/amber: non-critical condition
• Amber: critical fault
"Fault isolation methodology" (page 105) when conducting system diagnostics.
"If the enclosure does not initialize" (page 109).
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