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Where is the UPS option in the ReadyNAS Admin page?
The ReadyNAS OS on a RN516 with firmware "6.4.9 hotfix 1" is not showing a UPS configuration option. Or at least not in System -> Settings, where I expect it to be. I want to connect an UPS to the RN...
My bad. Read somewhere that it should be in System -> Settings, but that is probably old information. It now lives in System -> Power, as rightly marked out by StephenB.
So it's working as expected. Thanks for your help! Will start looking into the configuration options now.
System -> Power -> UPS
So the network UPS tools is detecting it. You are saying that you aren't seeing it on the power tab when you expand the UPS section?
My bad. Read somewhere that it should be in System -> Settings, but that is probably old information. It now lives in System -> Power, as rightly marked out by StephenB.
So it's working as expected. Thanks for your help! Will start looking into the configuration options now.
System -> Power -> UPS
Have been testing the APC UPS Back-UPS RS 1200G with RN312 and it works well in the sense that based on the threshold 30% I set in the ReadyNAS Admin page, the RN is shutdown when battery charge is below 30%. That threshold of 30% will also shows up in the upsc output.
# upsc UPS@localhost ... battery.charge.low: 30 ...
I was expecting the UPS to also shut down (a short while) after the server shuts down. There's no need for the UPS to supply battery power once the RN is switched off. All other devices can also lose power at that point. The APC PowerChute manual (990-4595E-001 07/2016) depicts this on page 36:
But I didn't see this during my test happening for over 20 minutes after server shutdown and didn't dare wait until the battery was fully drained. So this leads me to a few question. Hope you can help!
1) Is it expected behaviour of the UPS be shutdown shortly after RN is shutdown?
2) How long should I wait for the "UPS off" (point 7) to be reached?
2) Will ReadyNAS OS "tell" the APC UPS to start the shutdown procedure? (point 2 in image above)
3) Is there a way to influence the Low Battery Duration / Maximum required delay? (point 5 in image above)
4) Is there a way to influence the UPS Shutdown Delay? (before point 7 in image above)
The NAS will only shut itself down. It is up to the UPS to know when to shut itself down. I don't use APC UPS's, so can't tell you where you set that for your UPS, if it even has a setting for that. My Eaton 5P has settings for turning off after 5 min if no load is detected and deep cycle protection based on voltage, but nothing I can set to tell it to turn itself off any specific battery charge level. It kinda makes sense, because once the main load is removed, the estimated percentage of battery life is going to jump way up.
And, FYI, your NAS has a +5VSB (5 volt standby) power that powers the NIC and power-on/off circuit that stays on even when you shut the main voltages down by turning it "off".
Sandshark Thanks for your reply!
Sandshark wrote:
The NAS will only shut itself down. It is up to the UPS to know when to shut itself down.
OK. Good to know. Was hoping the server could "tell" the UPS to enter a (delayed) shutdown. But that doesn't seem to be the case.
Sandshark wrote:
I don't use APC UPS's, so can't tell you where you set that for your UPS, if it even has a setting for that.
Will try to figure out if my UPS can support that by posting on the APC forum at: https://forums.apc.com/spaces/4/back-ups-surge-protectors/forums/general/88936/how-to-automatically-shutdown-ups-after-server-shutdown
Sandshark wrote:
My Eaton 5P has settings for turning off after 5 min if no load is detected and deep cycle protection based on voltage, but nothing I can set to tell it to turn itself off any specific battery charge level. It kinda makes sense, because once the main load is removed, the estimated percentage of battery life is going to jump way up.
OK. I see your point. Guess I need to figure out what kind of options are supported by my APC UPS.
The UPS will provide battery backup for the server and the network equipment only. Once the server has shutdown I still don't see the need for the network equipment to stay on and drain the battery. Eventually, the UPS will run out of battery power any way. So why not shut the UPS down when it still has 29% battery charge remaining?
Sandshark wrote:And, FYI, your NAS has a +5VSB (5 volt standby) power that powers the NIC and power-on/off circuit that stays on even when you shut the main voltages down by turning it "off".
Thanks! Good know.
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