.TH os_mon 7 "os_mon 2.8.2.1" "Ericsson AB" "Erlang Application Definition"
.SH NAME
os_mon \- OS Monitoring Application
.SH DESCRIPTION
.LP
The operating system monitor, OS_Mon, provides the following services:
.RS 2
.TP 2
*
cpu_sup CPU load and utilization supervision (Unix)
.LP
.TP 2
*
disksup Disk supervision(Unix, Windows)
.LP
.TP 2
*
memsup Memory supervision (Unix, Windows)
.LP
.TP 2
*
os_sup Interface to OS system messages (Solaris, Windows)
.LP
.RE

.LP
To simplify usage of OS_Mon on distributed Erlang systems, it is not considered an error trying to use a service at a node where it is not available (either because OS_Mon is not running, or because the service is not available for that OS, or because the service is not started)\&. Instead, a warning message is issued via \fIerror_logger\fR\& and a dummy value is returned, which one is specified in the man pages for the respective services\&.
.SH "CONFIGURATION"

.LP
When OS_Mon is started, by default all services available for the OS, except \fIos_sup\fR\&, are automatically started\&. This configuration can be changed using the following application configuration parameters:
.RS 2
.TP 2
.B
\fIstart_cpu_sup = bool()\fR\&:
Specifies if \fIcpu_sup\fR\& should be started\&. Defaults to \fItrue\fR\&\&.
.TP 2
.B
\fIstart_disksup = bool()\fR\&:
Specifies if \fIdisksup\fR\& should be started\&. Defaults to \fItrue\fR\&\&.
.TP 2
.B
\fIstart_memsup = bool()\fR\&:
Specifies if \fImemsup\fR\& should be started\&. Defaults to \fItrue\fR\&\&.
.TP 2
.B
\fIstart_os_sup = bool()\fR\&:
Specifies if \fIos_sup\fR\& should be started\&. Defaults to \fIfalse\fR\&\&.
.RE
.LP
Configuration parameters effecting the different OS_Mon services are described in the respective man pages\&.
.LP
See config(5) for information about how to change the value of configuration parameters\&.
.SH "SEE ALSO"

.LP
cpu_sup(3erl), disksup(3erl), memsup(3erl), os_sup(3erl), nteventlog(3erl), snmp(3erl)\&.