Concept Guide

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-specic. 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 o
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
Control and Monitoring 121