Managing Core Dump Files; Copying Core Dumps - Cisco 4700M Administration Manual

Chapter 4 Managing the ACE Software

Managing Core Dump Files

This section describes how to manage the ACE core dump files. A core dump occurs when the ACE
experiences a fatal error. The ACE writes information about the fatal error to the core: file system in
Flash memory before a switchover or reboot occurs. The core: file system is the storage location for all
core files generated during a fatal error. Three minutes after the ACE reboots, the saved last core file is
restored from the core: file system back to its original RAM location. This restoration is a background
process and is not visible to the user.
This section contains the following topics:
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Guidelines and Limitations
This topic includes the following restrictions:
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Copying Core Dumps

This section describes how to copy a core dump from the ACE to the disk0: file system or to a remote
server. The ACE copies a single file based on the provided process identifier.
Restrictions
You must perform this task from the Admin context only.
OL-20823-01
Guidelines and Limitations
Copying Core Dumps
Clearing the Core Directory
Deleting a Core Dump File
The core: file system is available from the Admin context only.
Core dump information is for Cisco Technical Assistance Center (TAC) use only. If the ACE
becomes unresponsive, you can view the dump information in the core through the show cores
command. We recommend that you contact TAC for assistance in interpreting the information in the
core dump.
The time stamp on the restored last core file displays the time when the ACE booted up, not when
the last core was actually dumped. To obtain the exact time of the last core dump, check the
corresponding log file with the same process identifier (PID).
Cisco 4700 Series Application Control Engine Appliance Administration Guide
Managing Core Dump Files
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