Reference Guide

896 | Z-Series Debugging and Diagnostics
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Running Offline Diagnostics
1. Place the unit in the offline state using the offline stack-unit command from EXEC Privilege mode, as
shown in Taking a Z-Series Stack Unit Offline. You cannot enter the command on a stacking unit.
Figure 48-1. Taking a Z-Series Stack Unit Offline
FTOS#offline stack-unit 0
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]:yes
FTOS#00:01:34: %STKUNIT0-M:CP %CHMGR-2-STACKUNIT_DOWN: Stack unit 0 down - stack unit offline
00:01:34: %STKUNIT0-M:CP %IFMGR-1-DEL_PORT: Removed port: Fo 0/
0,4,8,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68,72,76,80,84,88,92,96,100,104,108,112,116,120,124,
2. Use the show system brief command from EXEC Privilege mode to confirm offline status, as shown
in the following example. Results are captured in one file whether for one unit or multiple units.
Note: The system reboots when the off-line diagnostics complete. This is an automatic process in default
mode. A warning message appears when the offline stack-unit command is implemented
Warning - offline of stack unit will bring down all the protocols and the unit will be
operationally down, except for running Diagnostics.
Proceed with Offline-Diags [confirm yes/no]:y
You must reload the system after the offline command is issued for normal system operation.