Chapter 4. TroubleshootingThis chapter describes the diagnostic tools and troubleshooting information thatare 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 thischapter, see “Start here” and “Getting help and technical assistance,” on page 367for more information.Start hereYou can solve many problems without outside assistance by following thetroubleshooting procedures in this documentation and on the World Wide Web.This Problem Determination and Service Guide describes the diagnostic tests that youcan perform, troubleshooting procedures, and explanations of error messages anderror codes. The documentation that comes with your operating system andsoftware also contains troubleshooting information.Diagnosing a problemBefore you contact IBM or an approved warranty service provider, follow theseprocedures in the order in which they are presented to diagnose a problem withyour server.1. Return the server to the condition it was in before the problem occurred. Ifany hardware, software, or firmware was changed before the problem occurred,if possible, reverse those changes. This might include any of the followingitems:v Hardware componentsv Device drivers and firmwarev System softwarev UEFI firmwarev System input power or network connections2. View the light path diagnostics LEDs and event logs. The server is designedfor ease of diagnosis of hardware and software problems.v Light path diagnostics LEDs: See “Light path diagnostics” on page 106 forinformation about using light path diagnostics LEDs.v Event logs: See “Event logs” on page 115 for information about notificationevents and diagnosis.v Software or operating-system error codes: See the documentation for thesoftware or operating system for information about a specific error code. Seethe manufacturer's website for documentation.3. Run IBM Dynamic System Analysis (DSA) and collect system data. RunDynamic System Analysis (DSA) to collect information about the hardware,firmware, software, and operating system. Have this information availablewhen you contact IBM or an approved warranty service provider. Forinstructions for running DSA, see the Dynamic System Analysis Installation andUser's Guide.© Copyright IBM Corp. 2012 99
