Usage

The Kernel core dump can be large and may take up to 5 to 30 minutes to upload.

Information

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.

•Diagnostic results are printed to the screen. Dell Networking OS 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.

Syntaxdiag stack-unit number [alllevels level0 level1 level2] verbose testname

Parameters

number

alllevels

Enter the stack-unit id.

Range from 0 to 5.

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

Debugging and Diagnostics

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Dell 9.7(0.0) manual Offline Diagnostic Commands, Diag stack-unit, Alllevels, Level0, Level1