Cisco MDS 9000 Series

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2-3
Cisco MDS 9000 Family Troubleshooting Guide
OL-5183-02, Cisco MDS SAN-OS Release 1.3
Chapter 2 Troubleshooting Switch System Issues
Troubleshooting System Restarts
switch# show processes
The following codes are used in the system output for the State (process state):
• D = uninterruptible sleep (usually IO)
• R = runnable (on run queue)
• S = sleeping
• T = traced or stopped
• Z = defunct ("zombie") process
• NR = not-running
• ER = should be running but currently not-running
Note ER usually is the state a process enters if it has been restarted too many times and has been detected as
faulty by the system and disabled.
The system output looks like the following (the output has been abbreviated to be more concise):
PID State PC Start_cnt TTY Process
----- ----- -------- ----------- ---- -------------
1 S 2ab8e33e 1 - init
2 S 0 1 - keventd
3 S 0 1 - ksoftirqd_CPU0
4 S 0 1 - kswapd
5 S 0 1 - bdflush
6 S 0 1 - kupdated
71 S 0 1 - kjournald
136 S 0 1 - kjournald
140 S 0 1 - kjournald
431 S 2abe333e 1 - httpd
443 S 2abfd33e 1 - xinetd
446 S 2ac1e33e 1 - sysmgr
452 S 2abe91a2 1 - httpd
453 S 2abe91a2 1 - httpd
456 S 2ac73419 1 S0 vsh
469 S 2abe91a2 1 - httpd
470 S 2abe91a2 1 - httpd
Step 3 Enter the following command to show the processes that have had abnormal exits and if there is a
stack-trace or core dump.
switch# show process log
Process PID Normal-exit Stack-trace Core Log-create-time
---------------- ------ ----------- ----------- ------- ---------------
ntp 919 N N N Jan 27 04:08
snsm 972 N Y N Jan 24 20:50
Step 4 Enter the following command to show detailed information about a specific process that has restarted:
switch# show processes log pid 898
The system output looks like the following:
Service: idehsd
Description: ide hotswap handler Daemon
Started at Mon Sep 16 14:56:04 2002 (390923 us)
Stopped at Thu Sep 19 14:18:42 2002 (639239 us)
Uptime: 2 days 23 hours 22 minutes 22 seconds
Start type: SRV_OPTION_RESTART_STATELESS (23)