user@host> show log messages
Mar 9 12:22:02 host savecore: Router crashed.....
Mar 9 12:22:02 host savecore: reboot after panic: Loss of soft watchdog Mar 9
12:22:02 host savecore: system went down at Sun Mar 9 12:22:02 2003 Mar 9
12:22:02 host savecore: Selective dump will be saved now
Meaning A kernel crash occurred and a core file has been generated.
Related
Documentation
Checklist for Monitoring the Routing Engine on page 165•
Display the Log File When Kernel Crash Core File Is not Generated
Purpose To gather error messages from the Messages log file when kernel crash core file is not
generated after a power outage.
Action You might see the following in the /var/log/messages file after the router comes back
up. To view the messages log file, use the following command:
user@host> show log messages
user@host> show log messages
Aug 15 15:35:58 host /kernel: checking for core dump...
Aug 15 15:35:59 host /kernel: savecore: Router rebooted. Cause unknown....
Aug 15 15:35:59 host savecore: Router rebooted. Cause unknown....
Meaning The kernel checks for a core dump file when the router reboots.
Related
Documentation
Checklist for Monitoring the Routing Engine on page 165•
Check for CompactFlash Card and Hard Disk Failure
If the Routing Engine has a CompactFlash card failure, the router boots from the hard
disk. When you log in to the router, the CLI will indicate that the router has booted from
alternate media.
If the Routing Engine has a hard drive failure, the router boots from the CompactFlash
card as usual. However, the router cannot write to the hard drive.
1.
When the CompactFlash Card Is Removed from the Boot List on page 198
2.
Determine Why CompactFlash Card Did Not Mount on page 198
3.
When the Hard Disk Is Removed from the Boot List on page 199
4.
Verify That the Hard Disk Did Not Mount on page 199
5.
Verify That the Hard Disk Is Missing from The Boot List on page 200
6.
View Alarms When Media Is Removed from the Boot List on page 200
197Copyright © 2012, Juniper Networks, Inc.
Chapter 6: Monitoring the Routing Engine
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