Reference Guide

Running Offline Diagnostics
To run offline diagnostics, use the following commands.
For more information, refer to the examples following the steps.
1. Place the unit in the offline 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 offline 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. Confirm the offline 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#
270
Debugging and Diagnostics