Skip to main content

Troubleshooting

This chapter describes the diagnostic tools and troubleshooting information that are available to help you solve problems that might occur in the server.

If you cannot diagnose and correct a problem by using the information in this chapter, see Getting help and technical assistance for more information.

  • Start here
    You can solve many problems without outside assistance by following the troubleshooting procedures in this documentation and on the World Wide Web.
  • How to send DSA data to IBM
    Use the IBM Enhanced Customer Data Repository to send diagnostic data to IBM.
  • Service bulletins
    IBM continually updates the support website with the latest tips and techniques that you can use to solve problem that you might have with the Lenovo NeXtScale nx360 M4 Compute Node server.
  • Checkout procedure
    The checkout procedure is the sequence of tasks that you should follow to diagnose a problem in the server.
  • Diagnostic tools
    The section introduces available tools to help you diagnose and solve hardware-related problems.
  • Automated service request (call home)
    IBM provides tools that can automatically collect and send data or call IBM Support when an error is detected. These tools can help IBM Support speed up the process of diagnosing problems.
  • Error messages
    This section provides the list of error codes and messages for UEFI/POST, IMM, and DSA that are generated when a problem is detected.
  • Troubleshooting by symptom
    Use the troubleshooting tables to find solutions to problems that have identifiable symptoms.
  • Solving power problems
    Use this information to solve power problems.
  • Solving Ethernet controller problems
    Use this information to solve Ethernet controller problems.
  • Solving undetermined problems
    If Dynamic System Analysis (DSA) did not diagnose the failure or if the server is inoperative, use the information in this section.
  • Problem determination tips
    Because of the variety of hardware and software combinations that can encounter, use the following information to assist you in problem determination.
  • Recovering the server firmware (UEFI update failure)
    Use this information to recover the server firmware.
  • Automated boot recovery (ABR)
    While the server is starting, if the integrated management module II detects problems with the server firmware in the primary bank, the server automatically switches to the backup firmware bank and gives you the opportunity to recover the firmware in the primary bank.
  • Nx-boot failure
    Configuration changes, such as added devices or adapter firmware updates, and firmware or application code problems can cause the server to fail POST (the power-on self-test).