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The latest release of NUT (2.4) also controls PDU systems. It can do this either natively using
SNMP or through a
binding
to
Powerman
(open source software from Livermore Labs that also
is embedded in Black Box
console server
s).
These NUT clients and servers all are embedded in each Black Box
console server
(with a Management
Console presentation layer added) —and they also are run remotely on distributed
console server
s and
other remote NUT monitoring systems. This layered distributed NUT architecture enables:
Multiple manufacturer support: NUT can monitor UPS models from 79 different
manufacturers—and PDUs from a growing number of vendors—with a unified interface.
Multiple architecture support: NUT can manage serial and USB connected UPS models with the
same common interface. Network-‐connected USB and PDU equipment can also be monitored
using SNMP.
Multiple clients monitoring one UPS: Multiple systems may monitor a single UPS using only their
network connections. There is a wide selection of client programs that support monitoring UPS
hardware via NUT (Big Sister, Cacti, Nagios and more).
Central management of multiple NUT servers: A central NUT client can monitor multiple NUT
servers that may be distributed throughout the data center, across a campus, or around the
world.
NUT supports the more complex power architectures found in data centers, communications centers,
and distributed office environments where many UPSes from many vendors power many systems with
many clients. Each of the larger UPSes power multiple devices, and many of these devices are in turn
dual powered.
8.3
Environmental monitoring
The Environmental Monitor Device (EMD) connects to any Black Box
console server
serial port and each
console server
can support multiple EMDs. Each EMD device has one temperature and one humidity
sensor and one or two general-‐purpose status sensors that you can connect to a smoke detector, water
detector, vibration, or open-‐door sensor.
Using the Management Console,
Administrator
s can view the ambient temperature (in
°
C) and humidity
(percentage), and set the EMD to automatically send alarms progressively from warning levels to critical
alerts.