Troubleshooting

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

See also the Nutanix software documentation at: https://portal.nutanix.com/#/page/docs

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
  You can use the Enhanced Customer Data Repository to send diagnostic data to Lenovo.
• Service bulletins
  Lenovo continually updates the support Web site with the latest tips and techniques that you can use to solve problem that you might have with the Lenovo Converged HX Series 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)
  Lenovo provides tools that can automatically collect and send data or call Lenovo Support when an error is detected. These tools can help Lenovo 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
  The method that you use to test the Ethernet controller depends on which operating system you are using. See the operating-system documentation for information about Ethernet controllers, and see the Ethernet controller device-driver readme file.
• 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. If possible, have this information available when requesting assistance from Lenovo.
• 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).