Reference Guide

14
Debugging and Diagnostics
The basic debugging and diagnostic commands are supported by the Dell Force10 operating software (FTOS) on the C-
Series, E-Series, S-Series, S4810, or Z-9000 platforms as indicated.
This chapter contains the following sections:
• Offline Diagnostic Commands
• Buffer Tuning Commands
• Hardware Commands
Offline Diagnostic Commands
The offline diagnostics test suite is useful for isolating faults and debugging hardware. While tests are running, FTOS
results are saved as a text file (TestReport-SU-X.txt) in the flash directory. This show file command is available only
on master and standby.
Important Points to Remember
• Offline diagnostics can only be run when the unit is offline.
• You can only run offline diagnostics on a unit to which you are connected via the console. In other words, you
cannot run diagnostics on a unit to which you are connected to via a stacking link.
• Diagnostic results are printed to the screen. FTOS does not write them to memory.
• Diagnostics only test connectivity, not the entire data path.
diag stack-unit
Run offline diagnostics on a stack unit.
S-Series, Z-Series
Syntax
diag stack-unit number [alllevels | level0 | level1 | level2]
verbose testname
Parameters
number Enter the stack-unit number. The range is 0 to 7.
alllevels Enter the keyword alllevels to run the complete set of offline
diagnostic tests.
level0 Enter the keyword level0 to run Level 0 diagnostics. Level 0
diagnostics check for the presence of various components and
perform essential path verifications. In addition, they verify the
identification registers of the components on the board.
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