[Nut-upsuser] Some questions

[Arjen de Korte]

> 1. Does upscmd provide only device-specific commands?

Usually, yes. See also 'man 8 upscmd'.

> Or commands
> like shutdown.stayoff are general and good for all ups models?

No.

> When i see output of 'upscmd -l' - is this general commands
> that supported by given device or this is unique commands of this device?

Usually drivers attempt to determine if a command is valid, before
registering it.

> For example, i have APC SmartUPS-750 and it shows me that it have
> command shutdown.stayoff.
> Is this APC command or NUT one?

This is a NUT command.

> 2. Same question about UPS properties shown by upsc

See 'man 8 upsc'.

> 3. Question about ACP SmartUPS-750: what does shutdown.reset command does?
> resets UPS itself? resets power? something else?
> I need to reset device, connected to ups - is this possible?

This command doesn't exist, at least not in the trunk. Could it be you
made a typo?

> I tried to reset computer, connected to UPS with this command
> and it seem to work, but i have another problem here: ups.status
> which i get from upsc(usb driver) always returns me OK.

OK is not a valid status, so upsc should never report this.

> There
> is a timeout, which is big enough and UPS is fast enough to reboot during
> this timeout. So i push command to UPS from script, wait for fail
> status(ups is off or reset)
> and this event never happens. Is it possible to control timeout someway?
> I wanted to use this UPS as a STONITH device, but in this case it does not
> have required 'reset' action.

I'm not sure what you're trying to do here. Please explain. Chances are,
that calling 'upsmon -c fsd' is what you need (if you want to reboot the
UPS).

> 4. I was able to test 2 APC UPSes and found that they are slowly
> responding to commands: one of them needs about 100 seconds to turn off.
> At first i thought that upsc just didn`t work. Other is faster - about
> 25 seconds to respond.

The timers in UPS'es are notoriously unreliable. There may be nothing we
can do about this.

> Do have any information about mean times to respond for such UPSes?

No. This depends on the UPS. You'd have to ask the manufacturer for this.

> Is this UPS itself problem or maybe my USB connection/PC problems?

Most probably, the UPS.

Best regards, Arjen
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