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Chapter 7. Troubleshooting
This chapter provides basic troubleshooting information to help you resolve some
common problems that might occur with your NAS 200. The chapter is divided into:
v “Engine troubleshooting and diagnostics”
v “Adapter troubleshooting and diagnostics” on page 62
If you cannot locate and correct the problem using the information in this section,
refer to “Appendix B. Getting help, service, and information” on page 83 for more
information.
Engine troubleshooting and diagnostics
This section gives troubleshooting information for the IBM 5187 Network Attached
Storage Model 6RZ (engine).
Engine diagnostic tools overview
The following tools are available to help you identify and resolve hardware-related
problems:
v POST beep codes, error messages, and error logs
The power-on self-test (POST) generates beep codes and messages to indicate
successful test completion or the detection of a problem. See “Power-on self-test
(POST)” on page 87 for more information.
POST error messages and descriptions are given in “Appendix C. Engine POST
messages” on page 87.
v Diagnostic programs and error messages
The diagnostic programs are stored in upgradable read-only memory (ROM) on
the system board. These programs are the primary method of testing the major
components of your appliance. See “POST diagnostic programs” on page 97 for
more information.
v Light-path diagnostics
Your appliance has light-emitting diodes (LEDs) to help you identify problems
with appliance components. These LEDs are part of the light-path diagnostics
that are built into your appliance. By following the path of lights, you can quickly
identify the type of system error that occurred. See “Light-path diagnostics” on
page 50 for more information.
v Intel
®
PROSet II
See “Testing the Ethernet adapters with Intel PROSet II” on page 65.
v Troubleshooting charts
These charts list problem symptoms, along with suggested steps to correct the
problems. See “Engine troubleshooting charts” on page 52 for more information.
v Support
You can register with the following support site to subscribe to e-mail notification
of new technical tips and frequently asked questions, obtain downloads, and join
forum discussions:
http://www.ibm.com/storage/support/nas
© Copyright IBM Corp. 2001 47