Redundant UPS

valepe

Cadet
Joined
Jul 6, 2021
Messages
4
I searched the forums but I don't find anything useful.
I'll install Scale in a short time but I need to manage two UPSes.

It seems that TrueNAS still isn't able to monitor multiple UPSes so I'm searching for a workaround.
First I thinked to modify the ix-ups script to create customized nut files but I can't find it anymore in the middleware on Github (maybe is for Core on FreeBSD?).
I don't like much this way because it will not survive an update.

So I'm thinking to create a VM with NUT-UPS to:
- monitor both UPSes
- if both go critical, send a UPS shutdown commands with a delay of 5 minutes
- THEN one of the following
+ send a shutdown command to the host
OR
+ create a dummy UPS that host can monitor and shutdown (but I must be sure that host shutdown starts after UPS shutdown on the VM)

Is it possible?
Any other ideas?
 
Joined
Jun 2, 2019
Messages
591
Unfortunately, TrueNAS does not support individual USB device passthrough. You have to pass the entire USB controller or PCI device.

Looks like it can be done, but I think you will need to install NUT on a separate client, perhaps a RPi. Then set up TrueNAS clients as UPS Slaves

 

valepe

Cadet
Joined
Jul 6, 2021
Messages
4
Unfortunately, TrueNAS does not support individual USB device passthrough. You have to pass the entire USB controller or PCI device.

Looks like it can be done, but I think you will need to install NUT on a separate client, perhaps a RPi. Then set up TrueNAS clients as UPS Slaves

USB isn't a problem. Both UPS have SNMP cards, so they can be accessed via LAN.

How can I setup multiple clients in TrueNAS if it can monitor a single UPS only? The server (where TrueNAS run) has two PSUs
 
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