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= Configuration = The NUT configuration files live in /etc/nut. == On gallium == * ups.conf - specifies the UPS name (upsium), driver (apcsmart), and serial port (/dev/ttyS1) * upsd.conf - specifies access controls to upsd, the main NUT daemon; only allow club hosts to monitor the UPS * upsd.users - user names, passwords, and privileges for access to upsd * upsmon.conf - specifies that gallium is the master for monitoring; gives information so upsmon can connect to upsd In /etc/default/nut, specify START_UPSD=yes and START_UPSMON=yes. == On others == * upsmon.conf - specifies that the upsd on gallium should be monitored; gives information so upsmon can connect to the upsd on gallium In /etc/default/nut, specify START_UPSMON=yes. = How It Handles Issues = TODO: kbare - verify this is true. When the battery level of the UPS becomes critical, the upsmon processes will notice, and initiate a system shutdown. The master will wait for all of the slaves to shut down, and then it will shut itsefl down, and power off the UPS. |
We use [http://www.networkupstools.org/ NUT]. We are monitoring our UPS through the serial port on [:Infrastructure/Gallium.club.cc.cmu.edu:gallium]. We also run upsmon on the machines that are plugged into the UPS.
Configuration
The NUT configuration files live in /etc/nut.
On gallium
- ups.conf - specifies the UPS name (upsium), driver (apcsmart), and serial port (/dev/ttyS1)
- upsd.conf - specifies access controls to upsd, the main NUT daemon; only allow club hosts to monitor the UPS
- upsd.users - user names, passwords, and privileges for access to upsd
- upsmon.conf - specifies that gallium is the master for monitoring; gives information so upsmon can connect to upsd
In /etc/default/nut, specify START_UPSD=yes and START_UPSMON=yes.
On others
- upsmon.conf - specifies that the upsd on gallium should be monitored; gives information so upsmon can connect to the upsd on gallium
In /etc/default/nut, specify START_UPSMON=yes.
How It Handles Issues
TODO: kbare - verify this is true.
When the battery level of the UPS becomes critical, the upsmon processes will notice, and initiate a system shutdown. The master will wait for all of the slaves to shut down, and then it will shut itsefl down, and power off the UPS.