For system-specific information about the action that you should take as a result of a message that DSA
generates, see Appendix B “DSA diagnostic test results” on page 345.
If you cannot find a problem by using DSA, see “Solving undetermined problems” on page 195 for
information about testing the server.
Note: DSA Preboot might appear to be unresponsive when you start the program. This is normal operation
while the program loads.
Make sure that the server has the latest version of the DSA code. To obtain DSA code and the Dynamic
System Analysis Installation and User's Guide, go to
https://support.lenovo.com/solutions/LNVO-DSA.
DSA editions
This topic provides information on the two editions of the Lenovo Dynamic System Analysis program.
Two editions of Dynamic System Analysis are available:
• DSA Portable
DSA Portable Edition runs within the operating system; you do not have to restart the server to run it. It is
packaged as a self-extracting file that you download from the web. When you run the file, it self-extracts
to a temporary folder and performs comprehensive collection of hardware and operating-system
information. After it runs, it automatically deletes the temporary files and folder and leaves the results of
the data collection and diagnostics on the server.
If you are able to start the server, use DSA Portable.
• DSA Preboot
DSA Preboot runs outside of the operating system; you must restart the server to run it. It is provided in
the flash memory on the server, or you can create a bootable media such as a CD, DVD, ISO, USB, or PXE
using the Lenovo ToolsCenter Bootable Media Creator (BoMC). For more details, see the BoMC User
Guide at
https://support.lenovo.com/solutions/LNVO-BOMC. In addition to the capabilities of the other
edition of DSA, DSA Preboot includes diagnostic routines that would be disruptive to run within the
operating-system environment (such as resetting devices and causing loss of network connectivity). It has
a graphical user interface that you can use to specify which diagnostics to run and to view the diagnostic
and data collection results.
DSA Preboot provides diagnostics for the following system components, if they are installed:
– Network adapters
– Optical devices (CD or DVD)
– Tape drives (SCSI, SAS, or SATA)
– Memory
– Microprocessor
– Checkpoint panel
– I2C bus
– SAS and SATA drives
If you are unable to restart the server or if you need comprehensive diagnostics, use DSA Preboot.
Your Lenovo System x3850 X6 and x3950 X6 server comes with DSA Preboot diagnostics code on the
integrated USB flash memory. Utilities are available to reset and update the diagnostics code on the
integrated USB flash device, if the diagnostic partition becomes damaged and does not start the DSA
Preboot diagnostic programs. For more information and to download the utilities, go to
https://
support.lenovo.com/solutions/LNVO-DSA
.
Chapter 4. Troubleshooting 165
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