DELL S6000-ON User Manual

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Enabling Application Core Dumps
Application core dumps are disabled by default.
A core dump file can be very large. Due to memory requirements the file can only be sent directly to an 
FTP server; it is not stored on the local flash.
To enable full application core dumps, use the following command.
• Enable RPM core dumps and specify the Shutdown mode.
CONFIGURATION mode
logging coredump server
To undo this command, use the no logging coredump server command.
Mini Core Dumps
Dell Networking OS supports mini core dumps on the application and kernel crashes. The mini core 
dump applies to Master, Standby, and Member units.
Application and kernel mini core dumps are always enabled. The mini core dumps contain the stack 
space and some other minimal information that you can use to debug a crash. These files are small files 
and are written into flash until space is exhausted. When the flash is full, the write process is stopped.
A mini core dump contains critical information in the event of a crash. Mini core dump files are located in 
flash:/ (root dir). The application mini core filename format is f10StkUnit<Stack_unit_no>.<Application 
name>.acore.mini.txt
. The kernel mini core filename format is f10StkUnit<Stack_unit_no>.kcore.mini.txt
The following are sample filenames.
When a member or standby unit crashes, the mini core file gets uploaded to master unit. When the 
master unit crashes, the mini core file is uploaded to new master.
The panic string contains key information regarding the crash. Several panic string types exist, and they 
are displayed in regular English text to enable easier understanding of the crash cause.
Example of Application Mini Core Dump Listings
Dell#dir
Directory of flash:
1  drw-  16384 Jan 01 1980 00:00:00 +00:00 .
2  drwx  1536  Sep 03 2009 16:51:02 +00:00 ..
3  drw-  512   Aug 07 2009 13:05:58 +00:00 TRACE_LOG_DIR
4  d---  512   Aug 07 2009 13:06:00 +00:00 ADMIN_DIR
5  -rw-  8693  Sep 03 2009 16:50:56 +00:00 startup-config
6  -rw-  8693  Sep 03 2009 16:44:22 +00:00 startup-config.bak
7  -rw-  156   Aug 28 2009 16:16:10 +00:00 f10StkUnit0.mrtm.acore.mini.txt
8  -rw-  156   Aug 28 2009 17:17:24 +00:00 f10StkUnit0.vrrp.acore.mini.txt
9  -rw-  156   Aug 28 2009 18:25:18 +00:00 f10StkUnit0.sysd.acore.mini.txt
10 -rw-  156   Aug 28 2009 19:07:36 +00:00 f10StkUnit0.frrp.acore.mini.txt
11 -rw-  156   Aug 31 2009 16:18:50 +00:00 f10StkUnit2.sysd.acore.mini.txt
12 -rw-  156   Aug 29 2009 14:28:34 +00:00 f10StkUnit0.ipm1.acore.mini.txt
13 -rw-  156   Aug 31 2009 16:14:56 +00:00 f10StkUnit0.acl.acore.mini.txt
S-Series Debugging and Diagnostics
1085