Extended Crashinfo Files - Cisco WS-C3020 Software Configuration Manual

Chapter 40 Troubleshooting
Using the crashinfo Files
Each new crashinfo file that is created uses a sequence number that is larger than any previously existing
sequence number, so the file with the largest sequence number describes the most recent failure. Version
numbers are used instead of a timestamp because the switches do not include a real-time clock. You
cannot change the name of the file that the system will use when it creates the file. However, after the
file is created, you can use the rename privileged EXEC command to rename it, but the contents of the
renamed file will not be displayed by the show tech-support privileged EXEC command. You can delete
crashinfo files by using the delete privileged EXEC command.
You can display the most recent basic crashinfo file (that is, the file with the highest sequence number
at the end of its filename) by entering the show tech-support privileged EXEC command. You also can
access the file by using any command that can copy or display files, such as the more or the copy
privileged EXEC command.

Extended crashinfo Files

In Cisco IOS Release 12.2(25)SEC or later, the switch creates the extended crashinfo file when the
system is failing. The information in the extended file includes additional information that can help
determine the cause of the switch failure. You provide this information to the Cisco technical support
representative by manually accessing the file and using the more or the copy privileged EXEC
command.
Extended crashinfo files are kept in this directory on the flash file system:
flash:/crashinfo_ext/.
The filenames are crashinfo_ext_n where n is a sequence number.
You can configure the switch to not create the extended crashinfo file by using the no exception
crashinfo global configuration command.
Cisco Catalyst Blade Switch 3020 for HP Software Configuration Guide
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