Check The Message Buffer (Dmesg Command); View System Message Log Files - Oracle Netra SPARC T4-1B Service Manual

Server module
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Related Information
"Diagnostics Overview" on page 5
"Diagnostics Process" on page 7
"Managing Faults (Oracle ILOM)" on page 11
"Managing Faults (PSH)" on page 41
"Managing Faults (POST)" on page 29
"Managing Components (ASR)" on page 45
"Checking if Oracle VTS Software Is Installed" on page 27

▼ Check the Message Buffer (dmesg Command)

The dmesg command checks the system buffer for recent diagnostic messages and
displays them.
1. Log in as superuser.
2. Type.
# dmesg
Related Information
"View System Message Log Files" on page 24
"List FRU Status (prtdiag Command)" on page 25

▼ View 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 week), a
new message file is automatically created. The original contents of the messages
file are rotated to a file named messages.0. Over a period of time, the messages are
further rotated to messages.1 and messages.2, and then deleted.
1. Log in as superuser.
24
Netra SPARC T4-1B Server Module Service Manual • June 2012

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