Owner's Manual

212 | Chapter 8. Status Monitoring and Statistics
NETGEAR 8800 User Manual
After you clear the shutdown state and reset the affected module, each port is brought offline
and then back online before the module and the entire system is operational.
Troubleshooting Module Failures
If you experience an I/O module failure, use the following troubleshooting methods when you
can bring the switch offline to solve or learn more about the problem:
• Restarting the I/O module—Use the disable slot <slot> command followed by the
enable slot <slot> command to restart the offending I/O module. By issuing these
commands, the I/O module and its associated fail counter is reset. If the module does not
restart, or you continue to experience I/O module failure, contact NETGEAR Technical
Support.
• Running diagnostics—Use the run diagnostics normal <slot> command to run
diagnostics on the offending I/O module to ensure that you are not experiencing a
hardware issue. If the module continues to enter the failed state, contact NETGEAR
Technical Support. For more information about switch diagnostics, see
Performing Switch
Diagnostics on page 197.
If you experience an MSM/MM failure, contact NETGEAR Technical Support.
Viewing Fan Information
You can view detailed information about the fans installed in your switch. Depending on your
switch model, different information may be displayed.
To view detailed information about the health of the fans, use the following command:
show fans
The switch collects and displays the following fan information:
• State—The current state of the fan. Options are:
• Empty: There is no fan installed.
• Failed: The fan failed.
• Operational: The fan is installed and working normally.
• NumFan—The number of fans in the fan tray.
• Fan Name, displayed as Fan-1, Fan-2, and so on (modular switches also include a
description of the location, for example, Upper or Upper-Right)—Specifies the individual
state for each fan in a fan tray and its current speed in revolutions per minute (rpm).
On modular switches, the output also includes the following information:
• PartInfo—Information about the fan tray, including the:
• Serial number—A collection of numbers and letters, that make up the serial number of
the fan. This is the first series of numbers and letters in the display.
• Part number—A collection of numbers and letters, that make up the part number of
the fan. This is the second series of numbers and letters in the display.