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Uninterruptable Power Supply (view source)

Revision as of 14:15, 31 July 2009

4,040 bytes added ,  14:15, 31 July 2009
Added modifying shutdown time delay & modified additional info
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- Templating example: http://forums.contribs.org/index.php?topic=40668.0
 
- Templating example: http://forums.contribs.org/index.php?topic=40668.0
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==Modifying shutdown time delay==
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The following changes to NUT configuration will shut down the server a specified time after receiving the "on battery" signal (the example given is for 2 minutes).
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To create a timed shutdown before the BATTLOW signal is received, it is necessary to configure upssched and have a script handle the UPS events (upsmon cannot do this).
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config setprop nut status enabled
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config setprop nut Model megatec_usb
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config setprop nut Type auto
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Create and edit a custom template
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mkdir -p /etc/e-smith/templates-custom/etc/ups/upsmon.conf
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pico -w /etc/e-smith/templates-custom/etc/ups/upsmon.conf/NOTIFYCMD
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Add the following:
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NOTIFYCMD /usr/sbin/upssched
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Save & exit
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Ctrl o
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Ctrl x
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Create and edit a custom template
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mkdir -p /etc/e-smith/templates-custom/etc/ups/upssched.conf
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pico -w /etc/e-smith/templates-custom/etc/ups/upssched.conf/01CONFIG
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Add the following:
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CMDSCRIPT /sbin/e-smith/nutUPS.cmd
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PIPEFN /tmp/upspipe
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LOCKFN /tmp/upslock
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AT COMMBAD * EXECUTE commbad
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AT COMMOK * EXECUTE commok
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AT NOCOMM * EXECUTE nocomm
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AT ONBATT * EXECUTE powerout
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AT ONBATT * START-TIMER shutdownnow 120   
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AT LOWBATT * EXECUTE shutdowncritical
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AT ONLINE * CANCEL-TIMER shutdownnow
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AT ONLINE * EXECUTE powerup
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In the above set the line
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AT ONBATT * START-TIMER shutdownnow 120
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to how many seconds after ONBATT signal you want to shut down
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Save & exit
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Ctrl o
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Ctrl x
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Create the script
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pico -w /sbin/e-smith/nutUPS.cmd
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Add the following:
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#! /bin/sh
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        case $1 in
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                commbad)
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                        /bin/echo "UPS communications failure on `date`." | /bin/mail -s"UPS communications LOST" admin
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                        /usr/bin/wall "UPS communications failure."
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                        ;;
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                commok)
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                        /bin/echo "UPS communications restored on `date`." | /bin/mail -s"UPS communications restored" admin
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                        /usr/bin/wall "UPS communications restored."
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                        ;;
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                nocomm)
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                        /bin/echo "UPS communications cannot be established on `date`." | /bin/mail -s"UPS uncontactable" admin
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                        /usr/bin/wall "UPS communications cannot be established."
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                        ;;
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                powerout)
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                        /bin/echo "Power failure on `date`." | /bin/mail -s"UPS on battery" admin
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                        /usr/bin/wall "UPS on battery. Shutdown in 60 seconds...."
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                        ;;
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                shutdownnow)
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                        /bin/echo "UPS has been on battery for 60 seconds. Starting orderly shutdown on `date`." | /bin/mail -s"UPS on battery for 60 seconds" admin
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                        /usr/bin/wall "UPS has been on battery for 60 seconds. Shutting down NOW!!!!"
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                        /usr/bin/sudo /sbin/e-smith/signal-event halt
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                        ;;
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                shutdowncritical)
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                        /bin/echo "UPS battery level CRITICAL. Starting EMERGENCY shutdown on `date`." | /bin/mail -s"UPS battery CRITICAL" admin
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                        /usr/bin/wall "UPS battery level CRITICAL. Shutting down NOW!!!!"
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                        /usr/bin/sudo /sbin/e-smith/signal-event halt
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                        ;;
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                powerup)
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                        /bin/echo "Power restored on `date`." | /bin/mail -s"UPS on line" admin
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                        /usr/bin/wall "UPS on line. Shutdown aborted."
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                        ;;
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                *)
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                        /bin/echo "Unrecognized command: $1"
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                        ;;
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        esac
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Create a custom template
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mkdir -p /etc/e-smith/templates-custom/etc/sudoers/30nut
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Add the following
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nut  ALL=NOPASSWD: ALL
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To complete the process
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signal-event post-upgrade
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signal-event reboot
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==Aditional Information==
 
==Aditional Information==
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  man upsd
 
  man upsd
 
  man nutupsdrv
 
  man nutupsdrv
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The NUT website is here
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http://www.networkupstools.org/
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From that website you can glean which configuration setting does what function
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Then modify the NUT config file, by creating a custom template, expanding template and restarting service
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<noinclude>[[Category:Howto]]</noinclude>
 
<noinclude>[[Category:Howto]]</noinclude>
RayMitchell
624

edits

Retrieved from "https://wiki.koozali.org/Special:MobileDiff/13229"

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