NUT package (2.8.0 and below)
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@dennypage said in NUT package:
@kevindd992002 said in NUT package:
Ok, I'll check out the delay. Do you have good increased value recommendation to start with?
Start a shutdown on the Synology and check the amount of time between the log off message in pfSense and the time the Synology actually powers off.
I’ve seen a lot of variation in shutdown time on the Synology depending upon what’s running (packages, docker containers, VMs). FWIW, DSM 7 seems to speed things up a bit.
I see. But manually shutting down a Synology is not the same as it doing a "safe shutdown". A safe shutdown happens when an FSD is received and it doesn't actually power off the NAS but only dismounts the drives and turns off the services IIRC. As for the time difference between these two events, I'm not sure. I don't know how to accurately time a safe shutdown because the lights in the NAS are physically on when it happens.
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@kevindd992002 There's no magic in NUT. A NUT "safe shutdown" is usually invoking a standard system command. For example, "/bin/shutdown -p +0" is used on pfSense.
I've recently upgraded from DSM6 to DSM7. I don't have a DSM6 system to examine, and I haven't had an opportunity to look at NUT in DSM7 to see how it is configured.
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@dennypage said in NUT package:
@kevindd992002 There's no magic in NUT. A NUT "safe shutdown" is usually invoking a standard system command. For example, "/bin/shutdown -p +0" is used on pfSense.
I've recently upgraded from DSM6 to DSM7. I don't have a DSM6 system to examine, and I haven't had an opportunity to look at NUT in DSM7 to see how it is configured.
That's not entirely true. Have you recently noticed how a Synology NAS acts when it receives an FSD from the NUT server? It only does a safe shutdown, not a complete shutdown. I'm a 100% sure of this as I've been working in the past with Synology support regarding this. I didn't understand why it wasn't turning off completely so I thought I asked them. They said that it is by design that when you set a Synology NAS to shutdown with the "same as server" option, it only does a safe shutdown. It dismounts the drives and kills the services. When that process happens and power is cutoff by the UPS, then it's the same effect as a graceful/complete shutdown. I can vouch for this in DSM 6. I recently upgraded to DSM 7 but I'm not sure if it'll still work that way.
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I think they're also calling it safe mode instead of shutdown. See post of Ramzi in this thread:
https://community.synology.com/enu/forum/1/post/121370?page=2&sort=oldest
In short, when Synology receives an FSD signal, it goes to safe mode. It does not shut down at all. It only gets turned off when the UPS cuts off power to it.
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@kevindd992002 I don't think that some of the people writing in that thread know how NUT works.
The concept of a mode where the system is quiesced but is listening to the UPS and will start back up if the UPS signals that mains have returned is not supported with NUT. There is no concept of shutdown being started and subsequently aborted--when shutdown is started, is it expected to be completed through to the point of having the UPS cut the load.
Specifically to the Ramzi post (Synology support), he is saying that there is no way to have the Synology shut down but to leave the UPS powered. He is 100% correct in what he says. As noted above, this is exactly how NUT works. Once NUT shutdown is started, the UPS must be told to cut the load and remove power to the Synology.
If you prefer, you can use this phrasing instead of the prior:
Start a shutdown on the Synology and check the amount of time between the log off message in pfSense and the time the Synology actually enters safe mode.
This will probably be about a 1/4 second less than a power off test.
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@dennypage said in NUT package:
@kevindd992002 I don't think that some of the people writing in that thread know how NUT works.
The concept of a mode where the system is quiesced but is listening to the UPS and will start back up if the UPS signals that mains have returned is not supported with NUT. There is no concept of shutdown being started and subsequently aborted--when shutdown is started, is it expected to be completed through to the point of having the UPS cut the load.
Specifically to the Ramzi post (Synology support), he is saying that there is no way to have the Synology shut down but to leave the UPS powered. He is 100% correct in what he says. As noted above, this is exactly how NUT works. Once NUT shutdown is started, the UPS must be told to cut the load and remove power to the Synology.
If you prefer, you can use this phrasing instead of the prior:
Start a shutdown on the Synology and check the amount of time between the log off message in pfSense and the time the Synology actually enters safe mode.
This will probably be about a 1/4 second less than a power off test.
Right. I completely understand that this is not supported because I've experienced this myself. Sometimes, people in the house turn on the generator (when there's a blackout) a few seconds after the FSD is sent by NUT to the remote monitors. This messes up everything.
I think we're pertaining to the same thing but different wordings :)
I use "safe mode + Synology waits for UPS to cut power" which is exactly what the Synology support person was saying. If safe mode is just 1/4 second less than a full power off test, then doing a manual power off test would then be an accurate test. I did do this in the past and since I also have an expansion unit in the mix, I remember that both units turned off in the span of two to three minutes.
Would that value be a good value for the power off delay of the UPS then? I just need to make sure that the UPS has still enough juice to wait for that long.
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@kevindd992002 said in NUT package:
Would that value be a good value for the power off delay of the UPS then? I just need to make sure that the UPS has still enough juice to wait for that long.
You’ll have to time it. Difference between NUT log off and entry to safe mode. My guess (hope) would be that it is significantly less 60 seconds, but that’s just a guess. Note that you’ll need to recheck whenever you make significant changes to the Synology.
Just out of curiosity, are you running DSM 6 or 7?
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@dennypage said in NUT package:
@kevindd992002 said in NUT package:
Would that value be a good value for the power off delay of the UPS then? I just need to make sure that the UPS has still enough juice to wait for that long.
You’ll have to time it. Difference between NUT log off and entry to safe mode. My guess (hope) would be that it is significantly less 60 seconds, but that’s just a guess. Note that you’ll need to recheck whenever you make significant changes to the Synology.
Just out of curiosity, are you running DSM 6 or 7?
When I manually shutdown the NAS, its remote monitor will also log off from the NUT server, correct? So difference between that time and when the NAS is completely shutdown (no lights and all).
Inwas running DSM 6 when I timed it to be 3 minutes from the time I initiated a shutdown sequence up to when the units are completely shutdown. Last week, I upgraded to DSM 7 and haven't checked since.
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@kevindd992002 said in NUT package:
Last week, I upgraded to DSM 7 and haven't checked since.
I haven't timed a lot of things, but DSM 7 seems a lot faster across the board. I'm guessing that shutdown/safe mode will be faster as well. Your Mileage May Very.
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@dennypage said in NUT package:
@kevindd992002 said in NUT package:
Last week, I upgraded to DSM 7 and haven't checked since.
I haven't timed a lot of things, but DSM 7 seems a lot faster across the board. I'm guessing that shutdown/safe mode will be faster as well. Your Mileage May Very.
I'll try and time it today. For the UPS delay, when does that delay start? Is it as soon as I see the auto shutdown message in the pfsense NUT?
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@kevindd992002 said in NUT package:
For the UPS delay, when does that delay start? Is it as soon as I see the auto shutdown message in the pfsense NUT?
You're looking for the amount of time between the point the Synology disconnects from pfSense NUT and the time it has fully entered safe mode.
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@dennypage said in NUT package:
@kevindd992002 said in NUT package:
For the UPS delay, when does that delay start? Is it as soon as I see the auto shutdown message in the pfsense NUT?
You're looking for the amount of time between the point the Synology disconnects from pfSense NUT and the time it has fully entered safe mode.
What I meant is when does the ups.delay.shutdown countdown start? When does the UPS start counting down before it cuts off power to its loads?
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@kevindd992002 said in NUT package:
What I meant is when does the ups.delay.shutdown countdown start? When does the UPS start counting down before it cuts off power to its loads?
It starts when the UPS receives a shutdown command.
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Do you have any ideas why is it that when I connect to my APU2C4 via a serial port, the NUT package cannot detect my USB UPS?
As soon as I remove the serial cable connection and restart NUT, it works just fine.
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@kevindd992002 said in NUT package:
I connect to my APU2C4 via a serial port, the NUT package cannot detect my USB UPS?
Serial or USB ?
As soon as I remove the serial cable connection and restart NUT, it works just fine.
? Without the cable, NUT works ?
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@gertjan said in NUT package:
@kevindd992002 said in NUT package:
I connect to my APU2C4 via a serial port, the NUT package cannot detect my USB UPS?
Serial or USB ?
As soon as I remove the serial cable connection and restart NUT, it works just fine.
? Without the cable, NUT works ?
APC UPS is connected via USB and I'm trying to keep a serial connection alive but when I do that it kills the APC USB connection. It only happens for the APC USB connection, not with other USB devices.
Yes, it works without the serial connection.
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@kevindd992002 This is a basic NUT issue rather than a package issue. You'll need to diagnose this at the NUT level, and probably follow up with the NUT forum. I'd suggest you start by examining the log entries for NUT...
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So I am able to monitor and query the values of the two ups that power my firewall, by adding a second one at Advance Settings under ups.conf
Any tips on what files, and their location the status widget uses to be able to modify and display data for each of the ups. (Hopefully something as simple as adding a loop or hardcoding a link for the second entry).
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@josepr The pfSense NUT package is designed to supervise/monitor a single UPS only.
I'm curious as to why you have two UPSs on your firewall... does you firewall hardware have dual power supplies connected to separate UPSs?
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@dennypage
Two ups each ones feeds a pdu which feeds a dual power supply host and other dual power equipment on a small 12U rack.
I am comfortable with programming and some html so wanted to see if could modify my copy of the package locally on my machine and make it work.
