Tripp Lite B0930082E4UV Owners Manual for B093- B097- and B098-Series Console - Page 160

8. Power, Environment and Digital I/O • Enter the IP Address or DNS name of the remote console server* that is managing the remote UPS. (*This may be another Tripp Lite console server or it may be a generic Linux server running Network UPS Tools). Note: An example where centrally monitored and remotely distributed UPS systems are useful is a campus or large business site where a multitude of computer and other equipment sites are widely spread out and with each containing its own UPS supply. Many of these sites (particularly the smaller sites) will be USB or serially connected. Having a console server at these remote sites allows the system manager to centrally monitor the power supply status at all sites and centralize alarms. In doing so, the system manager can receive warning to initiate a call-out or shut down. • Check Log Status and specify the Log Rate (minutes between samples) if you wish the status from the UPS to be logged. These logs can then be viewed from the Status: UPS Status screen. • Check Enable Shutdown Script if the remote UPS is providing power to the console server. In the event the UPS reaches critical battery status, the custom script in /etc/config/scripts/ups-shutdown will run, allowing you to perform any final shutdown actions. • Click Apply. Note: The remote UPS feature is supported on all console servers with firmware version 2.8 and later. Earlier versions support a single remote "Monitored UPS", which could be set to trigger the console server shutdown script. 8.2.3 Controlling UPS Powered Computers One advantage of using a managed UPS is you can configure computers that draw power through that UPS to be shut down gracefully in the event of a prolonged power failure. For Linux computers, this is accomplished by setting up upsmon on each computer and directing them to monitor the console server managing their UPS. This will set the specific conditions used to initiate a computer shut down. Non-critical servers may be powered down seconds after the UPS starts running on battery, whereas servers that are more critical may not shut down until a low battery warning is received. Refer to the online NUT documentation for details: http://eu1.networkupstools.org/doc/2.2.0/INSTALL.html http://linux.die.net/man/5/upsmon.conf http://linux.die.net/man/8/upsmon An example upsmon.conf entry may look like: MONITOR [email protected] 1 username password Secondary - managedups is the UPS Name of the Managed UPS - 192.168.0.1 is the IP address of the Tripp Lite console server - 1 indicates the server has a single power supply attached to this UPS - username is the Username of the Managed UPS - password is the Password of the Manager UPS NUT monitoring clients are available for Windows computers (WinNUT). If you have an RPC (PDU), it is also possible to shut down UPS-powered computers and other equipment without them having a client running (e.g., communications and surveillance gear). 8.2.4 UPS Alerts You can set UPS alerts using Alerts & Logging: Alerts (refer to 7. Alerts, Auto-Repsonse and Logging). 160