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Chapter 5 Collecting Information When Troubleshooting
5.4 Other Problems
- While both the BMC management LAN port and BMC service LAN port are disabled, powering on
the BMC enables the LAN ports.
2.
Set the IP addresses for both the BMC management LAN and BMC service LAN.
5.4.2
Node Console Hangs
If the console cannot be end normally, it may hang.
Then, kill all processes on the console, and then open the console.
The following is an example of recovery measures.
1.
ssh login as the root user to the node where the hang occurred.
$ ssh -l root [host name]
2.
Identify the PIDs of processes running on the console.
[root@xxxx ~]# ps -ef | grep ttyAMA0
root
root
[root@xxxx ~]#
3.
Kill a running process.
[root@xxxx ~]# kill -9 3019
[root@xxxx ~]#
4.
Kill the bash process used by the console.
[root@xxxx ~]# kill -9 2942
[root@xxxx ~]#
5.
Kill the bash parent process used by the console.
[root@xxxx ~]# kill -9 2904
[root@xxxx ~]#
5.4.3
Precaution on Using Commands
If an invalid character is entered, a node is powered off, and [Node] on the Web GUI screen displays
"Reserved" for the node.
To clear "Reserved" from the display, turn AC power off and on.
5.4.4
Precaution on Removing a PSU
Removing a PSU during warm maintenance and clicking [Exit Maintenance] causes the System alarm LED
on the main unit to blink and the Web GUI screen to display a warning for the chassis. However, use of the
chassis can continue.
To clear the warning from the display and turn off the LED, turn AC power off and on.
2942
2904
0 23:48 ttyAMA0
3019
2942
0 23:56 ttyAMA0
00:00:00 -bash
00:00:00 cat large-file
62
C120-0089-03EN
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