Reference Guide

1012 | S5000 Debugging and Diagnostics
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Important Points to Remember
You can only perform offline diagnostics on an offline standalone unit or offline member unit of a
stack of three or more. You cannot perform diagnostics on the management or standby unit in a stack
of two or more (Message 1).
Perform offline diagnostics on one stack member at a time.
Diagnostics only test connectivity, not the entire data path.
Diagnostic results are stored on the flash of the unit on which you performed the diagnostics.
When offline diagnostics are complete, the unit or stack member reboots automatically.
Running Offline Diagnostics
1. Place the unit in the offline state using the offline stack-unit command from EXEC Privilege mode, as
shown in Figure 57-1. You cannot enter the command on a Master or Standby stack unit.
Figure 57-1. Taking a Stack Unit Offline
2. Use the show system brief command from EXEC Privilege mode to confirm offline status, as shown in
Figure 57-2.
Message 1 Offline Diagnostics on Master/Standby Error
Running Diagnostics on master/standby unit is not allowed on stack.
The system reboots when the off-line diagnostics complete. This is an automatic process. A
warning message appears when the offline stack-unit command is implemented.
Warning - Diagnostic execution will cause stack-unit to reboot after completion of
diags.
Proceed with Offline-Diags [confirm yes/no]:y
Dell#offline stack-unit 2
Warning - offline of stack 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]:
5w6d12h: %STKUNIT0-M:CP %CHMGR-2-STACKUNIT_DOWN: Stack unit 2 down - stack unit offline
5w6d12h: %STKUNIT0-M:CP %IFMGR-1-DEL_PORT: Removed port: Te 2/1-48
Dell#5w6d12h: %STKUNIT1-S:CP %IFMGR-1-DEL_PORT: Removed port: Te 2/1-48