On 8/8/2017 4:50 PM, Chris Olson wrote:
If we wanted to protect our CentOS systems from facility power failure
in a similar way, is there operating system or other standard support
that we might employ?  Most of the Linux-based applications are not as
critical as the engineering applications on the Windows machines. There
is a significant amount of processor idle time on several of the CentOS
systems during non-work hours when the systems are unattended.  Several
CentOS systems are supported currently with UPSs, but they run out and
the system loses power if it is unattended.


NUT aka NetworkUPS Tools is the way to go on Linux, for UPS power management. you can configure NUT as master/slave, so one linux system talks with the UPS, either USB, Serial, or Ethernet, and it in turn tells the other linux systems to shut down cleanly when its time. Or if each box has its own UPS, you can just run NUT in standalone mode on each box.

NUT is in EPEL...



--
john r pierce, recycling bits in santa cruz

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