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CHAPTER 9: POWER, ENVIRONMENT AND DIGITAL I/O
Check Log Status and specify the Log Rate (minutes between samples) if you wish the status from this UPS to be logged.
These logs can then be viewed at Status > UPS Status.
If you have enabled Nagios services you will presented with an option for Nagios monitoring
FIGURE 9-18.
Check Enable Nagios to enable this UPS to be monitored using Nagios central management.
Check Enable Shutdown Script if this is the UPS providing power to the console server itself.
If there is a critical power failure, you can perform last gasp actions on the console server before power is lost.
This is achieved by placing a custom script in /etc/config/scripts/ups-shutdown (you may use the provided /etc/scripts/ups-
shutdown as a template). This script is only run when then UPS reaches critical battery status.
Click Apply.
NOTE: You can customize the upsmon, upsd and upsc settings for this UPS hardware directly from the command line.
9.2.2 REMOTE UPS MANAGEMENT
A Remote UPS is a UPS that is connected as a Managed Device to some remote console server that is being monitored (but not
managed) by your console server.
The upsc and upslog clients in the console server can configured to monitor remote servers that are running Network UPS Tools
managing their locally connected UPSes. These remote servers might be other Black Box console servers or generic Linux servers
running NUT. All these distributed UPSes (which may be spread in a row in a data center, or around a campus property or across the
country) can be centrally monitored through the one central console server window.
An example where centrally monitoring remotely distributed UPSes is useful is a campus or large business complex where there’s a
multitude of computer and other equipment sites spread afar, each with their own UPS supply. Many of these (particularly the smaller
sites) will be USB or serially connected.
Having a LES1200 or LES1508A at these remote sites allows the systems manager to centrally monitor the power supply status at all
sites, centralize alarms, and, consequently, be warned to initiate a call-out or take shut down actions.
