Administrator Guide

Running Oine Diagnostics
To run oine diagnostics, use the following commands.
For more information, refer to the examples following the steps.
1. Place the unit in the oine state.
EXEC Privilege mode
offline stack-unit
You cannot enter this command on a MASTER or Standby stack unit.
NOTE: The system reboots when the oine diagnostics complete. This is an automatic process. The following
warning message appears when you implement the offline stack-unit command:
Warning - offline of unit will bring down all the protocols and
the unit will be operationally down, except for running Diagnostics.
Please make sure that stacking/fanout not configured for Diagnostics execution.
Also reboot/online command is necessary for normal operation after the offline
command is issued.
Proceed with Offline [confirm yes/no]:
Dell#offline stack-unit 0
Warning - offline of unit will bring down all the protocols and
the unit will be operationally down, except for running Diagnostics.
Please make sure that stacking/fanout not configured for Diagnostics execution.
Also reboot/online command is necessary for normal operation after the offline command
is issued.
Proceed with Offline [confirm yes/no]:yes
Dell#
2. Conrm the oine status.
EXEC Privilege mode
show system brief
Dell#show system brief
Stack MAC : 00:1e:c9:de:03:7b
-- Stack Info --
Unit UnitType Status ReqTyp CurTyp Version Ports
------------------------------------------------------------------------------------
0 Member not present
1 Management online I/O-Aggregator I/O-Aggregator 8-3-17-38 56
2 Member not present
3 Member not present
4 Member not present
5 Member not present
Dell#
Trace Logs
In addition to the syslog buer, the Dell Networking OS buers trace messages which are continuously written by various 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 buer.
You can save the messages to a le either manually or automatically after failover.
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Debugging and Diagnostics