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Dell Command Line Reference Guide for the S4048–ON System 9.14.2.5

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show reset-reason

Display the reason for the last system reboot.

Syntax
show reset-reason [stack-unit {stack-unit-number | all}]
Parameters
stack-unit unit-number
(OPTIONAL) Enter the keyword stack-unit and the stack unit number to view the reason for the last system reboot for that stack unit.
all
(OPTIONAL) Enter the keyword stack-unit and the keyword all to view the reason for the last system reboot of all stack units in the stack.
Command Modes
  • EXEC
  • EXEC Privilege
Command History

This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC Networking OS Command Line Reference Guide.

Version
Description
9.14(0.0)
Introduced on the S5048F-ON.
9.13(0.0)
Introduced on the S3048–ON, S3100 series, S4048–ON, S4048T–ON, S5000, S6000, S6000–ON, S6010–ON, S6100–ON, Z9100–ON, C9010, MXL, M-IOA, and FN-IOM.
Usage Information

You can use the show reset-reason without the stack-unit option to view the reason for the last system reboot of the local system.

Example — User-initiated reboot with the reload command
DellEMC#show reset-reason 
Cause     : Reset by User through CLI command
Reset Time: 11/05/2017-08:36
Example — System reboot due to the upgrade command
DellEMC# show reset-reason
Cause: Reboot by Software upgrade Module.
Reset Time: 8/9/2017 1:39 PM.
Example — System reboot for unknown reasons
DellEMC# show reset-reason
Cause: N/A
Reload Time: N/A
Example — System reboot due to power loss or pressing the power button off and on.

The example shows the reason for the last reboot as N/A for warm reset.

DellEMC#show reset-reason 
Cause          : N/A
Reset Time     : N/A.
Example — System reboot due to watchdog timeout
DellEMC#show reset-reason
Cause: N/A.
Reset Time: N/A
Example — System reboot due to thermal shutdown

The example shows the reason for the last reboot as N/A for thermal shutdown.

DellEMC# show reset-reason
Cause: N/A
Reload Time: N/A
Example — System reboot due to BIOS boot fail

The example shows the reason for the last reboot as N/A for BIOS boot fail.

DellEMC#show reset-reason
Cause: NA
Reset Time: N/A.
Example — Unknown reason

If the reason for the last system reboot is not available, the system displays the reason as N/A.

DellEMC# show reload-reason
Cause: N/A
Time: N/A
Example — Reset reason of a single stack unit 
DellEMC# show reset-reason stack-unit 1
Cause     : Reset by User through CLI command
Reset Time: 11/05/2017-08:36
Example — Reset reason of all stack units 
DellEMC#show reset-reason stack-unit all

Last Reset Reason:
---------------------
Type                Cause                                   Time                
-----------------------------------------------------------------------------------
stack-unit 1        Reboot by Software                      11/05/2017-09:04    
stack-unit 2        Reboot by Software                      11/05/2017-09:04    
stack-unit 3        Cold Reset                              N/A                 
stack-unit 4        N/A                                     N/A                 
stack-unit 5        N/A                                     N/A                 
stack-unit 6        N/A                                     N/A

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