Collecting Information From Solaris Os Files And Commands; Checking The Message Buffer; Viewing System Message Log Files - Oracle Sun Netra T5440 Service Manual

1.7 Collecting Information From Solaris OS Files and
Commands
With the Solaris OS running on the server, you have the full complement of Solaris OS files and
commands available for collecting information and for troubleshooting.
If POST, service processor, or the Solaris PSH features do not indicate the source of a fault,
check the message buffer and log files for notifications for faults. Hard drive faults are usually
captured by the Solaris message files.
Use the dmesg command to view the most recent system message. To view the system messages
log file, view the contents of the /var/adm/messages file.

Checking the Message Buffer

1. Log in as superuser.
2.
Type the dmesg command:
dmesg
#
The dmesg command displays the most recent messages generated by the system.

Viewing System Message Log Files

The error logging daemon, syslogd, automatically records various system warnings, errors, and
faults in message files. These messages can alert you to system problems such as a device that
is about to fail.
The /var/adm directory contains several message files. The most recent messages are in
the /var/adm/messages file. After a period of time (usually every ten days), a new messages
file is automatically created. The original contents of the messages file are rotated to a file
named messages.1. Over a period of time, the messages are further rotated to messages.2 and
messages.3, and then deleted.
1. Log in as superuser.
2. Type the following command:
# more /var/adm/messages
1.7 Collecting Information From Solaris OS Files and Commands
Chapter 1 • Server Diagnostics 45