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UPS and Power Chute and SNMP?
For tax reasons I need to purchase a UPS imminently - apart from the fact it is a very good idea to have one! I use Linux (Ubuntu 16.04), Pro2, Ultra2 (both OS6) and 31400 NAS I know nothing ...
sounds like your UPS might have gotten fried.
Since you have 2 UPS, you could swap them and see if the other nas will recognize it.
If they both work on different nas, then perhaps something wonky with the config, but if the bad one still doesn't work, then I guess you need to replace it.
Most Home/SoHo UPS are monitored with USB - so you'd directly connect the USB cable to one of the NAS ports.
This monitoring uses a package called NUT (Network UPS Tools) - it isn't using SNMP. The NAS has NUT built in.
There's a list of UPS models that support NUT here: http://networkupstools.org/stable-hcl.html
APC models are popular. I use CyperPower myself. I've also seen some posters who use Eaton.
So what happens if you have two units (314 and 716x in my case) with only one (the 716x) connected via USB to a UPS?
Is there any way a second unit (the 314) can "know" when the UPS switched on? Network monitoring of the UPS is checked on the 716x . . .
hmuessig wrote:
So what happens if you have two units (314 and 716x in my case) with only one (the 716x) connected via USB to a UPS?
The RN314 can monitor the UPS using the 716x as a proxy. On the RN314 you specify "remote UPS".
This uses the network connection, so you need to make sure the network path is also protected (ideally by the same UPS).
I'm not sure what you mean by knowing when the UPS is switched on. The NAS knows that the UPS is functioning, whether it is using battery power or not, and the estimated run time. And it will execute a clean shutdown when the battery drain threshold is reached.
Thanks StephenB,
StephenB wrote:
And it will execute a clean shutdown when the battery drain threshold is reached.Is this always on low battery? I need just a graceful shutdown after a few minutes as the computers will be off. I have read that others want the same but not seen an answer. (5)
What happens if the NAS is doing something that takes a long time (like scrubbing or resyncing the array) and it is told to shut down? (6)
Will the NAS stay off until manually started (desirable)? (7)
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