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Had a 5+ hour utility outage - time to think about graceful shutdown when the UPS is exhausted...

Had a storm roll though this morning and the power went off at about 5:30 AM.  Was restored a bit after 11 AM.  Very unusual.  We usually get a short, couple minutes at the most, outage every couple months.  Have a couple network nodes that use a Raspberry Pi so have possible SD card corruption issues if powered down without proper software shutdown.  These are powered by a UPS.  Have thought about detecting loss of AC power and sending a command over the network to shut down.  Need to do a few other adjustments too like figuring out what really needs to be on the UPS to maximize run time.


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