Reference Guide

S5000 Debugging and Diagnostics | 1017
Trace logs
In addition to the syslog buffer, Dell networking OS buffers trace messages which are continuously written
by various Dell networking OS software tasks to report hardware and software events and status
information. Each trace message provides the date, time, and name of the Dell networking OS process. All
messages are stored in a ring buffer and can be saved to a file either manually or automatically upon
failover.
Auto Save on Crash or Rollover
Exception information on for master or standby units is stored in the flash:/TRACE_LOG_DIR directory.
This directory contains files that save trace information when there has been a task crash or timeout.
On a Master unit, you can reach the TRACE_LOG_DIR files by file transfer protocol (FTP) or by using
the show file command from the flash://TRACE_LOG_DIR directory.
On a Standby unit, you can reach the TRACE_LOG_DIR files only by using the show file command from
the flash://TRACE_LOG_DIR directory.
Hardware watchdog timer
The hardware watchdog command automatically reboots an Dell networking OS switch/router with a
single stack-unit that is unresponsive. This is a last resort mechanism intended to prevent a manual power
cycle.
Show Hardware Commands
The show hardware command tree consists of EXEC Privilege commands used with the S5000 system.
These commands display information from a hardware sub-component and from hardware-based feature
tables.
Table 57-2 lists the
show hardware commands available as of the latest Dell networking OS version.
Note: Non-management member units do not support this functionality.
Table 57-1. Hardware Watchdog Command
Command Description
hardware watchdog Enable the hardware watchdog mechanism.
Note: The show hardware commands should only be used under the guidance of Dell Networking Technical
Assistance Center.