Sun Microsystems Fire X4540, Administration Manual

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Chapter 12 Sun Fire X4540 Fault Management Architecture 109
fmd
Command
The Solaris OS uses the fault manager daemon,
fmd
(1M), which starts at boot time
and runs in the background to monitor the system. If a component generates an
error, the daemon handles the error by correlating the error with data from previous
errors and other related information to diagnose the problem.
Each problem diagnosed by the fault manager is assigned a Universal Unique
Identifier (UUID). The UUID uniquely identifies this particular problem across any
set of systems. The
fmdump
(1M) utility can be used to view the list of problems
diagnosed by the fault manager, along with their
UUIDs
and knowledge article
message identifiers. The
fmadm
(1M) utility can be used to view the resources on the
system believed to be faulty. The
fmstat
(1M) utility can be used to report statistics
kept by the fault manager. The fault manager is started automatically when Solaris
boots, so it is not necessary to use the
fmd
command directly.
When possible, the fault manager daemon initiates steps to self-heal the failed
component and take the component offline. The daemon also logs the fault to the
syslog
daemon and provides a fault notification with a message ID (MSGID). You
can use the message ID to get additional information about the problem from Sun’s
knowledge article database at:
http://www.sun.com/msg/
For more information, see the
fmd
(1M) man page.