S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
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Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x
OL-9285-05
Chapter 4 Troubleshooting Hardware
Troubleshooting Switching and Services Modules
Module Resets
Resets and reboots of modules are covered in detail in the
“Troubleshooting Cisco SAN-OS Software
System Reboots” section on page 2-13
. If you use the
module reset-reason
CLI command and the
output has an “unknown” reset reason, this may indicate a hardware problem. Some of the conditions
that may cause this include the following:
•
The switch experienced a power reset. This may be because you reset the power supplies or because
of a power interruption or failure.
•
The front panel reset button on the supervisor module was pressed.
•
Any hardware failure that caused the processor, dynamic memory, or I/O to reset or hang.
