Users Guide

Version Description
8.3.7.0 Introduced on the S4810.
Usage Information
The Kernel core dump can be large and may take up to 5 to 30 minutes to upload. Dell Networking OS does not
overwrite application core dumps so you should delete them as necessary to conserve space on the flash; if the
flash is out of memory, the coredump is aborted. On the S-Series, if the FTP server is not reachable, the
application coredump is aborted. Dell Networking OS completes the coredump process and wait until the upload is
complete before rebooting the system.
Offline Diagnostic Commands
The offline diagnostics test suite is useful for isolating faults and debugging hardware. While tests are running, Dell Networking OS 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.
• The system stores the diagnostic results in the flash directory (TestReport-SU-X.txt). The system displays the following message after
the diagnostic test is over.
05:37:17 : Diagnostic test results are stored on file: flash:/TestReport-SU-1.txt
05:37:22: %S3048-ON:1 %DIAGAGT-6-DA_DIAG_DONE: Diags finished on stack-unit 1
• Diagnostics only test connectivity, not the entire data path.
diag stack-unit
Run offline diagnostics on a stack unit.
Syntax
diag stack-unit number [alllevels | level0 | level1 | level2] verbose [testname
| no-reboot]
Parameters
number
Enter the stack-unit id.
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.
level1 Enter the keyword Level1 to run Level 1 diagnostics. Level 1 diagnostics is a smaller set
of diagnostic tests with support for automatic partitioning. They perform status/self test
for all the components on the board and test their registers for appropriate values. In
addition, they perform extensive tests on memory devices (for example, SDRAM, flash,
NVRAM, EEPROM, and CPLD) wherever possible. There are no tests on 10G links. At
this level, stack ports are shut down automatically.
level2 Enter the keyword level2 to run Level 2 diagnostics. Level 2 diagnostics are a full set
of diagnostic tests with no support for automatic partitioning. Level 2 diagnostics are
476 Debugging and Diagnostics