SImulate SNMP UPS in order to trigger NAS shutdown

[flint bramble]

Has anyone implemented a NAS shutdown solution using a simulated UPS reporting SNMP low battery messages to a NAS (Synology)?

I got something kind of wotking with NUT where I could change the .dev file for a dummy-ups and it would shutdown the NAS but couldn't finx an easy way to use that in an automation so I started to look at using SNMP. I setup the NAS as using WebServer.

Using pysnmp and snmp-sim I was able to get a basic setup but the NAS would never connect to the SNMP server.

If anyone has any experience in connecting a NAS to a simulated UPS using SNMP please post.

Regards

[plucky cloak]

You will have to contact their/Synology technical support for further assistance. At least from their documentation around SNMP like https://kb.synology.com/en-me/DSM/help/DSM/AdminCenter/system_snmp?version=7 Nothing is mentioned about monitoring incoming SNMP notifications (TRAP/INFORM) from a UPS device (simulated or not). It might not support that functionality over SNMP. But since your NAS has a web server, you might want to see if writing a web app on it and changing the needed files via that web app. Then your simulated UPS can call that web app over HTTP to shut NAS down.

[cobalt hazel]

Hi,
I use rest_command to shutdown my servers.
rest_command: server_shutdown: url: "http://your_pc_ip:your_pc_port/your_endpoint" method: POST payload: '{"command": "shutdown"}' content_type: "application/x-www-form-urlencoded" headers: accept: "application/json, text/html" authorization: !secret pbs_aPI_KEY

this you can use in a automation to shutdown the server.

Gruß

[flint bramble]

It's possible to use a real UPS with SNMP support. https://kb.synology.com/en-me/DSM/help/DSM/AdminCenter/system_hardware_ups?version=7