[Nut-upsuser] [UPS on Serial vs. USB] USB slow to update,
jpiszcz at lucidpixels.com
Sat Jan 27 12:20:56 CET 2007
When I disconnect my UPS from the wall, I have to wait 15-30 seconds
before the USB drier 'polls' this information and tells me that the UPS is
on battery power (via knutclient or syslog via nut):
ups at p34 POWER ALERT on Fri Jan 26 12:49:29 EST 2007
With a serial connection, I would get the alerts IMMEDIATELY (0.5-1
seconds) after disconnecting the UPS. My new machine does not have a
serial port built-in, only a serial header, and of course does not come
with an included cable, so I chose to use USB.
My question is, how do I change the polling time that nut uses to poll the
device to match that of the serial port?
The reason I'd like to is I am not going to see any power alerts for
unless there is a power outage for longer than 15-30 seconds.
I've checked the FAQ on this, do I have to change the 'MAXAGE' parameter
to force more frequent updates?
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