Chapter 4: Troubleshooting; System Messages - Dell poweredge r720 Installation, Maintenance And Troubleshooting Manual

Chapter 4: Troubleshooting

This section describes the following troubleshooting procedures:

System messages

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Recovery procedures
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Additional troubleshooting:
See the Dell PowerEdge™ R720 Owner's Manual at the following Dell web site for additional
troubleshooting procedures:
http://downloads.dell.com/Manuals/Common/poweredge-r720_Owner's%20Manual_en-us.pdf
See the Dell PowerEdge™ R620 Owner's Manual at the following Dell web site for additional
troubleshooting procedures:
http://support.dell.com/support/edocs/systems/peR620/en/om/r620omen.pdf
System messages
System messages can alert you to system problems, such as a device that is about to fail. By
default, many of the messages are displayed on the system console and are stored in /var/log.
To display system messages:
1. Enter:
dmesg
The system displays the most recent messages as shown in the following example:
Wed Feb 14 11:01:59 MST 2001
Feb 14 08:19:20 tern pseudo: [ID 129642 kern.info] pseudo-device: tod0
Feb 14 08:19:20 tern genunix: [ID 936769 kern.info] tod0 is /pseudo/tod@0
Feb 14 08:19:22 tern syslogd: going down on signal 15
...........
...........
...........
Feb 16 14:24:08 tern scsi: [ID 365881 kern.info] /pci@1f,0/pci@1/scsi@1,1/st@5,:
Feb 16 14:24:08 tern
Feb 16 14:24:08 tern scsi: [ID 193665 kern.info] st12 at glm1: target 5 lun 0
Feb 16 14:24:08 tern genunix: [ID 936769 kern.info] st12 is /pci@1f,0/pci@1/scs0
Feb 19 10:17:59 tern automountd[198]: [ID 784820 daemon.error] server cortex nog
Feb 19 10:18:27 tern last message repeated 6 times
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