146 lines
6.0 KiB
Groff
146 lines
6.0 KiB
Groff
'\" t
|
|
.\" Title: dummy-ups
|
|
.\" Author: [see the "AUTHOR" section]
|
|
.\" Generator: DocBook XSL Stylesheets v1.75.2 <http://docbook.sf.net/>
|
|
.\" Date: 08/07/2012
|
|
.\" Manual: NUT Manual
|
|
.\" Source: Network UPS Tools
|
|
.\" Language: English
|
|
.\"
|
|
.TH "DUMMY\-UPS" "8" "08/07/2012" "Network UPS Tools" "NUT Manual"
|
|
.\" -----------------------------------------------------------------
|
|
.\" * Define some portability stuff
|
|
.\" -----------------------------------------------------------------
|
|
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
.\" http://bugs.debian.org/507673
|
|
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
|
|
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
.ie \n(.g .ds Aq \(aq
|
|
.el .ds Aq '
|
|
.\" -----------------------------------------------------------------
|
|
.\" * set default formatting
|
|
.\" -----------------------------------------------------------------
|
|
.\" disable hyphenation
|
|
.nh
|
|
.\" disable justification (adjust text to left margin only)
|
|
.ad l
|
|
.\" -----------------------------------------------------------------
|
|
.\" * MAIN CONTENT STARTS HERE *
|
|
.\" -----------------------------------------------------------------
|
|
.SH "NAME"
|
|
dummy-ups \- Driver for multi\-purpose UPS emulation
|
|
.SH "NOTE"
|
|
.sp
|
|
This man page only documents the specific features of the dummy\-ups driver\&. For information about the core driver, see \fBnutupsdrv\fR(8)\&.
|
|
.SH "DESCRIPTION"
|
|
.sp
|
|
This program is a multi\-purpose UPS emulation tool\&. Its behavior depends on the running mode:
|
|
.SS "Dummy Mode"
|
|
.sp
|
|
\fBdummy\-ups\fR looks like a standard device driver to \fBupsd\fR(8) and allows one to change any value for testing purposes\&. It is both interactive, controllable through the \fBupsrw\fR(1) and \fBupscmd\fR(1) commands (or equivalent graphical tool), and batchable through script files\&. It can be configured, launched and used as any other real driver\&. This mode is mostly useful for development and testing purposes\&.
|
|
.SS "Repeater Mode"
|
|
.sp
|
|
\fBdummy\-ups\fR acts as a NUT client, simply forwarding data\&. This can be useful for supervision purposes\&. This can also allow some load sharing between several UPS instances, using a point\-to\-point communication with the UPS\&.
|
|
.SH "IMPLEMENTATION"
|
|
.sp
|
|
The port specification depends on the running mode, and allows the driver to select the right mode\&.
|
|
.SS "Dummy Mode"
|
|
.sp
|
|
Port is a definition file name for \fBdummy\-ups\fR\&. This can either be an absolute or a relative path name\&. In the latter case the NUT sysconfig directory (ie /etc/nut, /usr/local/ups/etc, \&...) is prepended\&.
|
|
.sp
|
|
For instance:
|
|
.sp
|
|
.if n \{\
|
|
.RS 4
|
|
.\}
|
|
.nf
|
|
[dummy]
|
|
driver = dummy\-ups
|
|
port = evolution500\&.dev
|
|
desc = "dummy\-ups in dummy mode"
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|
|
.sp
|
|
This file is generally named "something\&.dev"\&. It contains a list of all valid data and associated values, and has the same format as an \fBupsc\fR(8) dump (<varname>: <value>)\&. So you can easily create definition files from an existing UPS using "upsc > file\&.dev"\&. It can also be empty, in which case only a basic set of data is available: device\&.\fB, driver\&.\fR, ups\&.mfr, ups\&.model, ups\&.status
|
|
.sp
|
|
Samples definition files are available in the "data" directory of the nut source tree, and generally in the sysconfig directory of your system distribution\&.
|
|
.sp
|
|
Since \fBdummy\-ups\fR will loop on reading this file, you can dynamically modify it to interact with the driver\&. This will avoid message spam into your system log files, if you are using NUT default configuration\&.
|
|
.sp
|
|
You can also use the "TIMER <seconds>" instruction to create scheduled events sequences\&. For example, the following sequence will loop on switching ups\&.status between "OL", "OB" and "OB LB" every minute:
|
|
.sp
|
|
.if n \{\
|
|
.RS 4
|
|
.\}
|
|
.nf
|
|
ups\&.status: OL
|
|
TIMER 60
|
|
ups\&.status: OB
|
|
TIMER 60
|
|
ups\&.status: LB
|
|
TIMER 60
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|
|
.sp
|
|
It is wise to end the script with a TIMER\&. Otherwise dummy\-ups will directly go back to the beginning of the file\&.
|
|
.SS "Repeater Mode"
|
|
.sp
|
|
Port is the name of a remote UPS, using the NUT form, ie:
|
|
.sp
|
|
.if n \{\
|
|
.RS 4
|
|
.\}
|
|
.nf
|
|
<upsname>[@<hostname>[:<port>]]
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|
|
.sp
|
|
For instance:
|
|
.sp
|
|
.if n \{\
|
|
.RS 4
|
|
.\}
|
|
.nf
|
|
[repeater]
|
|
driver = dummy\-ups
|
|
port = ups@hostname
|
|
desc = "dummy\-ups in repeater mode"
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|
|
.SH "INTERACTION"
|
|
.sp
|
|
Once the driver is loaded in dummy mode, you can change any variables, except those of the driver\&.* and server\&.* collections\&. You can do this by either editing the definition file, or use the \fBupsrw\fR(1) and \fBupscmd\fR(1) commands\&.
|
|
.sp
|
|
Note that in simulation mode, new variables can be added on the fly, by adding these to the definition file\&. Conversely, if you need to remove variable (such as transient ones, like ups\&.alarm), simply update these by setting an empty value\&. As a result, they will get removed from the data\&.
|
|
.sp
|
|
In repeater mode, the driver acts according to the capabilities of the UPS, and so support the same instant commands and settable values\&.
|
|
.SH "BACKGROUND"
|
|
.sp
|
|
This driver was written in one evening to replace the previous dummycons testing driver\&. It was too limited and required to work from a terminal to interact\&.
|
|
.sp
|
|
\fBdummy\-ups\fR is useful for NUT client development, and other testing purpose\&.
|
|
.sp
|
|
It also helps the NUT Quality Assurance effort, by automating some tests on the NUT framework\&.
|
|
.sp
|
|
It now offers a repeater mode\&. This will help in building the Meta UPS approach, which allows one to build a virtual device, composed of several other devices (either UPS, PDUs)\&.
|
|
.SH "BUGS"
|
|
.sp
|
|
Instant commands are not yet supported in Dummy Mode, and data need name/value checking enforcement, as well as boundaries or enumeration definition\&.
|
|
.SH "AUTHOR"
|
|
.sp
|
|
Arnaud Quette
|
|
.SH "SEE ALSO"
|
|
.sp
|
|
\fBupscmd\fR(1), \fBupsrw\fR(1), \fBups.conf\fR(5), \fBnutupsdrv\fR(8)
|
|
.SS "Internet Resources:"
|
|
.sp
|
|
The NUT (Network UPS Tools) home page: http://www\&.networkupstools\&.org/
|