Configuration Guide User guide

518 FastIron Configuration Guide
53-1002494-02
Syslog service configuration
Retaining Syslog messages after a soft reboot
You can configure the device to save the System log (Syslog) after a soft reboot (reload command).
Syslog reboot configuration considerations
• If the Syslog buffer size was set to a different value using the CLI command logging buffered,
the System log will be cleared after a soft reboot, even when this feature (logging persistence)
is in effect. This will occur only with a soft reboot immediately following a Syslog buffer size
change. A soft reboot by itself will not clear the System log. To prevent the system from clearing
the System log, leave the number of entries allowed in the Syslog buffer unchanged.
• This feature does not save Syslog messages after a hard reboot. When the Brocade device is
power-cycled, the Syslog messages are cleared.
• If logging persistence is enabled and you load a new software image on the device, you must
first clear the log if you want to reload the device. (Refer to “Clearing the Syslog messages from
the local buffer” on page 518.)
To configure the device to save the System log messages after a soft reboot, enter the following
command.
Brocade(config)#logging persistence
Syntax: [no] logging persistence
Enter no logging persistence to disable this feature after it has been enabled.
Clearing the Syslog messages from the local buffer
To clear the Syslog messages stored in the local buffer of the Brocade device, enter the clear
logging command.
Brocade#clear logging
Syntax: clear logging
Syslog messages for hardware errors
NOTE
This feature is supported on FastIron X Series devices only. It is not supported on FWS, FCX, and ICX
devices.
FastIron Chassis devices support the display of hardware read and write errors encountered on a
slot or module during bootup and during normal system operations. There are four types of errors,
which may cause the system to disable or power down the modules on which they occur:
• Configuration read error
• Configuration write error
• Memory read error
• Memory write error
The following shows examples of some hardware errors in the show logging display output.